The present invention relates to a domestic waste incineration fly ash treatment system, suitable for clean and efficient treatment of municipal solid waste incineration fly ash, and comprising a three-stage gradient water washing subsystem, a filtrate post-treatment subsystem, an MVR evaporation salt making subsystem, a pressure filtration subsystem, and a filter cake post-treatment subsystem. In the system of the present invention, a water washing dechlorination rate of the three-stage gradient water washing subsystem for fly ash can reach 99%; the filtrate post-treatment subsystem solves the problems in a fly ash removal technique such as low selectivity and sensitivity, high treatment cost and incomplete removal; the content of heavy metals in ash washing wastewater is reduced to meet the standard of water washing chlorides in co-processing fly ash pretreatment products with a cement kiln, and the content of some heavy metals can be reduced to meet wastewater discharge standards, so that recycling of inorganic salts in high-salinity ash washing wastewater is implemented, and a resource utilization process of the ash washing wastewater generated in fly ash pretreatment is prompted.
The disclosure discloses a perovskite film layer, a device and a preparation method for effectively improving the efficiency of perovskite optoelectronics. The perovskite film layer consists of a layer with discontinuous, irregularly distributed perovskite crystal grains and an organic insulating layer with a low refractive index embedded between the perovskite crystal grains. The perovskite crystal grains form a plurality of convex portions, and the organic insulating layer forms a plurality of concave portions between the convex portions. By adding an excess of an alkylammonium salt and/or an organic molecule with a specific functional group to perovskite precursor solution, a concave-convex film layer structure is spontaneously formed, and an upper charge transport layer and an electrode form pleated concave-convex structures. Such a special perovskite thin film structure formed by a simple solution method can effectively improve the light-outcoupling efficiency and enhance the performance of the perovskite light-emitting device.
H01L 51/50 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés pour l'émission de lumière, p.ex. diodes émettrices de lumière organiques (OLED) ou dispositifs émetteurs de lumière à base de polymères (PLED)
H01L 51/00 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives
H01L 51/52 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés pour l'émission de lumière, p.ex. diodes émettrices de lumière organiques (OLED) ou dispositifs émetteurs de lumière à base de polymères (PLED) - Détails des dispositifs
H01L 51/56 - Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives
3.
Schizochytrium limacinum strain, building method therefor and application thereof
Schizochytrium sp. PKS enzyme, and the strain is obtained by performing flat panel screening and acclimation screening with a high rotation seed and a low temperature.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
The invention relates to a method for preparing a composite metal oxide hollow fibre. A certain stoichiometry of composite metal oxide raw material and a polymer binding agent are added to an organic solvent, and mixed mechanically to obtain an evenly dispersed spinning solution having a suitable viscosity. After defoaming treatment, the spinning solution is extruded through a spinneret and, after undergoing a certain dry spinning process, enters an external coagulation bath; during this period, a phase inversion process occurs and composite metal oxide hollow fibre blanks are formed. The blanks are immersed in the external coagulation bath and the organic solvent is displaced; after natural drying, the blanks undergo a heat treatment process; during this period, polymer burn off, in situ reaction, and in situ sintering processes occur to obtain the composite metal oxide hollow fibre.
C04B 35/622 - Procédés de mise en formeTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques
C04B 26/10 - Composés macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C04B 35/26 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base de ferrites
5.
Method for preparing defect-free DDR molecular sieve membrane
Provided is a method for preparing a defect-free DDR molecular sieve membrane. Sigma-1 molecular sieve is used as an inducing seed crystal to prepare and obtain a continuous and compact DDR molecular sieve membrane on the surface of a porous ceramic support. An ozone atmosphere or an external field assisted technology is used to remove a template in the pores of the molecular sieve membrane at a low temperature. The invention avoids the formation of intercrystal defects and cracks, an activated DDR molecular sieve membrane has a good selectivity for separating CO2, and the membrane preparation time is significantly reduced.
B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
The invention relates to a method for preparing a hierarchical porous zeolite membrane and an application thereof, comprising the following steps: a mesoporous structure-directing agent is added to limit the growth of zeolite crystals, and self-assembled in the crystallization process to generate a mesoporous structure. Based on a seed crystal induced secondary nucleation mechanism, this method can realize one-step hydrothermal synthesis of hierarchical porous zeolite membrane with the advantages of mild and controllable synthesis conditions, simple process, good repeatability, reduced energy consumption and cost savings. The hierarchical porous zeolite membrane prepared by the method has good cut-off performance, and the cut-off molecular weight is adjustable between 200 to 500,000 Da.
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
7.
PEROVSKITE FILM LAYER, DEVICE AND MANUFACTURING METHOD FOR EFFECTIVELY IMPROVING EFFICIENCY OF LIGHT-EMITTING DEVICE
Disclosed are a perovskite film layer, a device and a manufacturing method for effectively improving the efficiency of a perovskite optoelectronic device. The perovskite film layer consists of a layer of discontinuous, irregularly distributed perovskite grains (5) and an organic insulating layer (4) with a low refractive index embedded between the perovskite grains. The perovskite grains form a plurality of convex portions, and the organic insulating layer forms a plurality of concave portions between the convex portions. By means of adding an excess of an alkylammonium salt and/or an organic molecule having a specific functional group to a perovskite precursor solution, the perovskite crystal grains and concave-convex structures of the organic insulating layer embedded between the perovskite grains are spontaneously formed during a thin film manufacturing process, and an upper charge transmission layer and an electrode spontaneously form pleated concave-convex structures. Such a special perovskite thin film structure formed by means of a simple solution method can effectively improve light collecting efficiency, and finally improve the performance of the perovskite light-emitting device.
H01L 51/50 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés pour l'émission de lumière, p.ex. diodes émettrices de lumière organiques (OLED) ou dispositifs émetteurs de lumière à base de polymères (PLED)
Disclosed in the present invention are a pre-loading device and construction method for concrete crack control at the pier top of a steel-concrete composite bridge. The device comprises a first fastening device provided at a lower flange of an I-beam, a second fastening device provided at a pier, a twisted steel cable, and a tensioning device. The twisted steel cable has two ends passing through a first cable insertion hole and a second cable insertion hole pre-formed on the first fastening device and the second fastening device, respectively. The tensioning device is provided at a lower portion of the second fastening device to tension the twisted steel cable. The present invention targets conventional continuous bridges having I-beam-based composite structures, provides fastening devices at I-beams and piers to enable twisted steel cables to pass through the same, and then tensions the twisted steel cables by means of a center hole hydraulic jack to perform pre-loading on a mid-span region having a positive bending moment. The device can be pre-fabricated in a factory and assembled on site, enables convenient assembly and disassembly and simple operation, is fast and convenient to load or unload compared with the conventional means of using a water tank as ballast, and has superior controllability.
The invention relates to a solvent-free green ammoximation process based on membrane distribution with a procedure as: adding TS-1 catalyst and ketone into a reactor in advance; setting the stirring speed and reaction temperature; after reaching the set temperature, adding a certain amount of ammonia and hydrogen peroxide into a reaction solution, wherein the hydrogen peroxide is fed in a way of using membrane as a distributor, the ammonia is fed in a continuous or semi-continuous manner; oxime is produced upon the reaction. The advantages of the invention include the mild reaction conditions, high reacting efficiency, simple operation and environmentally-friendly process. And there is no need to add any solvent during the reaction process. During the ammoximation reaction, both the conversion rate of the ketone and the selectivity of the oxime can be over 98.0%.
C07C 249/04 - Préparation de composés contenant des atomes d'azote, liés par des liaisons doubles à un squelette carboné d'oximes
C07C 251/44 - Oximes avec des atomes d'oxygène de groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec l'atome de carbone d'au moins un des groupes oxyimino faisant partie d'un cycle autre qu'un cycle aromatique à six chaînons
B01J 29/89 - Silicates, aluminosilicates ou borosilicates du titane, du zirconium ou du hafnium
C07C 251/38 - Oximes avec des atomes d'oxygène de groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec les atomes de carbone des groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes de carbone d'un squelette carboné saturé
10.
DEVICE FOR REMOVING RUST ON UNDERWATER PIER COLUMN STEEL BARS AND REPAIRING CONCRETE SURFACES
Disclosed is a device for removing rust on underwater pier column steel bars and repairing concrete surfaces, the device comprising a suspension bracket (1), a movable sleeve (2), and a control box (3), wherein the suspension bracket (1) is fixedly arranged at the top of a bridge pier (4), and the movable sleeve (2) is formed by splicing, in the circumferential direction, at least two modules of identical shapes, with pressing devices and rubber strips (22) being disposed at the junction; each module comprises a main body (21), the upper part and the lower part of the main body (21) are disposed with convex edges, rubber strips (22) are also arranged at the joints of the convex edges and the bridge pier (4), and the left side and the right side of the main body (21) are each provided with connecting parts (23); vent holes (24) and drain holes (25) are provided on the inner side of the convex edges relative to the movable sleeve (2), and several guniting nozzles (26) and several liquid spraying nozzles (27) are uniformly distributed on the inner side surface of the main body (21) between the upper and lower convex edges; the vent holes (24), the drain holes (25), the guniting nozzles (26), and the liquid spraying nozzles (27) are connected to the control box (3) by virtue of pipelines; and a drying device (28) is also arranged in the main body (21). The repairing device has a high degree of automation and a strong universality, and can be reused, thus effectively reducing the construction cost.
Provided is a Schizochytrium limacinum strain, a building method therefor and an application thereof. The strain disclosed is classified and named as Schizochytrium sp. HX-RS, and the preservation number is CCTCC NO: M2017046. An acyltransferase functional domain originating from shewanella PKS enzyme is adopted instead of an acyltransferase functional domain originating from schizochytrium sp. PKS enzyme, and the strain is obtained by performing flat panel screening and acclimation screening with a high rotation speed and a low temperature.
C12N 1/15 - ChampignonsLeurs milieux de culture modifiés par l'introduction de matériel génétique étranger
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
Provided is a method for preparing a defect-free DDR molecular sieve membrane. Sigma-1 molecular sieve is used as an inducing seed crystal to prepare and obtain a continuous and compact DDR molecular sieve membrane on the surface of a porous ceramic support. An ozone atmosphere or an external field assisted technology is used to remove a template in the pores of the molecular sieve membrane at a low temperature. The invention avoids the formation of intercrystal defects and cracks, an activated DDR molecular sieve membrane has a good selectivity for separating CO2, and the membrane preparation time is significantly reduced.
C01B 37/02 - Polymorphes de silice cristallins, p. ex. silicalites
B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
C10L 3/10 - Post-traitement de gaz naturel ou de gaz naturel de synthèse
13.
METHOD FOR PREPARING COMPOSITE METAL OXIDE HOLLOW FIBRE
A method for preparing a composite metal oxide hollow fibre, specifically a method for obtaining a composite metal oxide hollow fibre from composite metal oxide raw material by means of directly performing phase inversion and a one-step heat treatment process. A certain stoichiometry of composite metal oxide raw material and a polymer binding agent are added to an organic solvent, and mixed mechanically to obtain an evenly dispersed spinning solution having a suitable viscosity. After defoaming treatment, the spinning solution is extruded through a spinneret and, after undergoing a certain dry spinning process, enters an external coagulation bath; during this period, a phase inversion process occurs and composite metal oxide hollow fibre blanks are formed. The blanks are immersed in the external coagulation bath and the organic solvent is displaced; after natural drying, the blanks undergo a heat treatment process; during this period, polymer burn off, in situ reaction, and in situ sintering processes occur to obtain the composite metal oxide hollow fibre.
Provided are a method of preparing a hierarchical porous channel molecular sieve membrane and an application thereof. The method comprises adding a mesoporous structure-directing agent so as to self-assemble on a membrane layer, thereby forming a mesoporous structure. The method uses a seed crystal to induce a secondary nucleation mechanism, and a hydrothermal one-step synthesis method to synthesize a hierarchical porous molecular sieve membrane. The present invention has advantages of mild and controllable synthesis conditions, simple preparation, good repeatability, reduced energy consumption, and cost savings. The hierarchical porous molecular sieve membrane prepared by the present method shows good cut-off performance, and the molecular weight cut-off is adjustable to between 200-500,000 Da. The molecular sieve membrane can be applied in the field of water treatment.
Provided is a chemical additive for a calcium sulphoaluminate-modified Portland cement, which includes: (a) at least one alkanolamine borate; (b) at least one organic alcohol; and (c) at least one saccharide or a derivative thereof. The above-mentioned substances and water are mixed and stirred so as to obtain the chemical additive for a calcium sulphoaluminate-modified Portland cement. The chemical additive for a calcium sulphoaluminate-modified Portland cement has better effects in terms of the regulation of the setting time and the improvement of the 3d/28 strength increase rate on the calcium sulphoaluminate-modified Portland cement, and also has an auxiliary grinding effect.
A cement grinding aid prepared by using waste antifreeze. The cement grinding aid comprises the following components by weight: 20-75 parts of pretreated waste antifreeze, 5-40 parts of alkanolamine, 1-5 parts of an acid solution, 3-12 parts of saccharide and 15-50 parts of water. The pre-treatment of the waste antifreeze is: adding an alkaline solution into the waste antifreeze for adjusting the pH value, then adding flocculant, stirring and then standing; separating the upper layer oil, then filtering for removing the flocculent precipitates, and obtaining the clear mixed solution.
The present invention relates to a solvent-free green ammoximation process based on film distribution, which comprises: adding a TS-1 catalyst and a ketone into a reactor in advance, setting a stirring speed and a reaction temperature, and after reaching the set temperature, adding a certain amount of ammonia and hydrogen peroxide into a reaction solution for reaction, wherein the hydrogen peroxide is fed in by way of using a film as a distributor, the ammonia is fed in a continuous or semi-continuous manner, and an oxime product is obtained by the reaction. The advantages of the present invention are as follows: the reaction conditions are mild, the efficiency is high, the process is simple and environmentally friendly, and there is no need to add any solvent during the reaction process. During the ammoximation reaction, both the conversion rate of the ketone and the selectivity of the oxime can be up to 98.0% or more.
C07C 251/44 - Oximes avec des atomes d'oxygène de groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec l'atome de carbone d'au moins un des groupes oxyimino faisant partie d'un cycle autre qu'un cycle aromatique à six chaînons
C07C 251/38 - Oximes avec des atomes d'oxygène de groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec les atomes de carbone des groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes de carbone d'un squelette carboné saturé
C07C 249/04 - Préparation de composés contenant des atomes d'azote, liés par des liaisons doubles à un squelette carboné d'oximes
18.
PREPARATION METHOD OF SIC POROUS CERAMIC MATERIAL AND POROUS CERAMIC MATERIAL MANUFACTURED BY USING SAME
A preparation method of a SiC porous ceramic material and porous ceramic material manufactured by using the method, comprising: mixing a SiC aggregate, a sintering aid (zirconium oxide), a pore-forming agent (activated carbon) and a polymer binder with a reinforcing agent (SiC whiskers) according to a certain proportion, and obtaining a porous ceramic material via forming, drying and high-temperature sintering. The porous ceramic material has a high strength, a high porosity, a good thermal shock resistance and a low sintering temperature, and can server as a filter material of high-temperature flue gas and a carrier material in vehicle exhaust purification.
C04B 38/06 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation en éliminant par brûlage des substances ajoutées
C04B 35/565 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbures à base de carbure de silicium
C04B 35/622 - Procédés de mise en formeTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques
19.
Preparation method of yeast cell immobilization medium and application thereof
Provided is a preparation method of a yeast cell immobilization medium, which comprises the following steps: (1) boiling a fiber material in boiling water and drying the fiber material; (2) soaking the fiber material in a surface modified aqueous solution with a concentration of 1-100 g/L, using hydrochloric acid to adjust a PH of the solution to 7.0, fully rinsing the fiber material in deionized water and drying the fiber material; (3) soaking the fiber material in a cross-linking agent aqueous solution with a concentration of 1-100 g/L, fully rinsing the fiber material in deionized water and drying the fiber material; and (4) attaching the fiber material to supporting framework. Also provided is the yeast cell immobilization medium prepared using the preparation method and a method for producing ethanol using the yeast cell immobilization medium.
The present invention relaters to a method for continuously preparing a nano zinc oxide with a membrane reactor. A zinc salt solution and a precipitant solution required for the preparation of a zinc oxide are respectively used as dispersion phases, and under the action of a certain pressure, the two reaction solutions respectively penetrate through a membrane tube at a certain rate and disperse quickly under the action of a shear force and react, producing a precursor precipitate. A precursor suspension penetrates through the membrane tube continuously and circularly after being pressurized by a pump, and at the same time, deionized water as a washing fluid is added to a suspension storage tank, wherein impurity ions penetrate through membrane pores and are discharged along with the liquid medium; after the concentration of the impurity ions meets requirements, the concentrated solution is discharged continuously and then spray-dried to obtain a basic zinc carbonate precursor powder. The basic zinc carbonate powder is calcined under certain conditions to obtain the nanostructured zinc oxide powder. The continuous preparation and washing of a powder can be achieved by coupling a membrane washing technique with a membrane dispersion technique. The procedure is simple, the structure of zinc oxide is easy to control and the yield is high.
A nucleotide production process comprises: decomposing an RNA by using a nuclease P1 so as to obtain nucleotides AMP, GMP, CMP and UMP, converting part or all of the nucleotide AMP into a nucleotide IMP by using adenosine deaminase, separating the obtained nucleotide by using an ion exchange resin, and then performing concentration and crystallization to obtain purified nucleotides AMP, GMP, CMP, UMP and IMP or obtain purified nucleotides GMP, CMP, UMP and IMP. The whole biocatalysis production of nucleotides is implemented by using a double-enzyme catalysis method, and high-purity nucleotides are obtained by using an ion resin separation technology and a solvent crystallization method; and the production process is simple and environmentally-friendly, and has low costs, high product safety and purity.
C12P 19/32 - Nucléotides avec un système cyclique condensé, contenant un cycle à six chaînons, comportant deux atomes d'azote dans le même cycle, p. ex. nucléotides puriques, dinucléotide de la nicotinamide-adénine
22.
METHOD FOR PREPARING TUBULAR GRAPHENE COMPOSITE MEMBRANE
A method for preparing a graphene composite membrane on the surface of a tubular support body. In the method, a tubular ceramic membrane is used as the support body, a layer of graphene material is uniformly prepared on the surface of the support body by the vacuum aspiration, and the defect-free tubular graphene composite membrane is obtain by the drying process.
A high-strength hollow fiber molecular sieve membrane and a preparation method therefor. A carrier of the high-strength molecular sieve membrane has a multi-channel hollow fiber configuration. The preparation method comprises first preparing a crystal seed solution, then immersing the dry carrier with the multi-channel hollow fiber configuration in the crystal seed solution, and extracting and drying the carrier to obtain a crystal-seeded carrier; and finally placing the crystal-seeded carrier in a molecular sieve membrane synthetic fluid, performing hydrothermal synthesis, and taking out, washing and drying the product to obtain the high-strength hollow fiber molecular sieve membrane.
B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
C01B 39/02 - Zéolites aluminosilicates cristallinesLeurs composés isomorphesLeur préparation directeLeur préparation à partir d'un mélange réactionnel contenant une zéolite cristalline d'un autre type, ou à partir de réactants préformésLeur post-traitement
Disclosed is a ε-polylysine hydrogel having a structural unit (I), wherein n is any natural number between 20 and 30 and m is any natural number between 50 and 70. Also disclosed are a preparation method and application of the ε-polylysine hydrogel. The polylysine hydrogel is nonhazardous to receptors, and is biodegradable and biocompatible. The prepared wound tissue healing materials can be efficiently, stably, and safely applied to wound tissue adhesion.
A61L 15/26 - Composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carboneLeurs dérivés
25.
HYDROGEL BASED ON Γ-POLYGLUTAMIC ACID AND Ε-POLYLYSINE CROSSLINKED POLYMER, AND PREPARATION METHOD THEREFOR
A hydrogel based on a γ-polyglutamic acid and ε-polylysine crosslinked polymer. The hydrogel is prepared by crosslinking γ-polyglutamic acid and ε-polylysine, and has a polymer provided with the following structural units, m being a natural number ranging from 15 to 45, n being a natural number ranging from 3900-17000, and x being a natural number ranging from 5 to 40. Also provided are a method for preparing the hydrogel, and a use thereof in preparing a medical wound dressing.
A61L 15/26 - Composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carboneLeurs dérivés
A61L 15/42 - Utilisation de matériaux caractérisés par leur fonction ou leurs propriétés physiques
C08J 3/24 - Réticulation, p. ex. vulcanisation, de macromolécules
26.
APPLICATION OF N-ACETYLNEURAMINIC ACID LYASE IN CATALYZED SYNTHESIS OF N-ACETYLNEURAMINIC ACID
Provided is an application of N-acetylneuraminic acid lyase in a reaction of catalyzing N-acetyl-D-mannosamine and pyruvic acid to synthesize N-acetylneuraminic acid, that is, the N-acetylneuraminic acid is prepared by using N-acetylneuraminic acid lyase shown by an amino acid sequence such as SEQ ID NO:2 as a catalyst, and using the N-acetyl-D-mannosamine and the pyruvic acid as substrates.
The present invention relates to a catalyst for benzene hydroxylation-based phenol preparation and a preparation method thereof. The catalyst uses a mesoporous material as a carrier. First, a surface of the carrier is modified by using amino silane, second, immersion is performed by using an acetylpyruvate solution of metal, and finally, washing and drying are performed to prepare the catalyst. The advantages of the present invention lie in that, active metal is loaded on the silane-modified mesoporous material to obtain a homogeneous-heterogeneous compound catalyst; an active metal component exists in a reaction system in a homogeneous form, thereby ensuring high catalytic performance of a catalytic component, and through bridging effects of the amino silane, the active metal component is loaded on the carrier, so as to improve acting force between the metal component and the carrier, improve the stability of the catalyst, and facilitate separation of the catalyst and a product. A preparation process of the catalyst is simple, and the catalyst has excellent catalytic performance, and can be applied to a reaction system for benzene hydroxylation-based phenol preparation.
B01J 29/03 - Catalyseurs contenant des tamis moléculaires n'ayant pas de propriétés d'échangeurs de base
C07C 37/58 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par des réactions d'oxydation introduisant directement un groupe hydroxyle sur un groupe CH appartenant à un cycle aromatique à six chaînons avec de l'oxygène moléculaire
H01M 8/12 - Éléments à combustible avec électrolytes solides fonctionnant à haute température, p. ex. avec un électrolyte en ZrO2 stabilisé
H01M 8/1233 - Éléments à combustible avec électrolytes solides fonctionnant à haute température, p. ex. avec un électrolyte en ZrO2 stabilisé avec un des réactifs liquide, solide ou chargé en liquide
H01M 8/124 - Éléments à combustible avec électrolytes solides fonctionnant à haute température, p. ex. avec un électrolyte en ZrO2 stabilisé caractérisés par le procédé de fabrication ou par le matériau de l’électrolyte
H01M 4/90 - Emploi de matériau catalytique spécifié
H01M 8/00 - Éléments à combustibleLeur fabrication
H01M 8/1009 - Éléments à combustible avec électrolytes solides avec un des réactifs liquide, solide ou chargé en liquide
29.
Method for synthesizing 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde
Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory (Chine)
Inventeur(s)
Lv, Chunlei
Pi, Shiqing
Chen, Jianhui
Lu, Dingqiang
Ouyang, Pingkai
Abrégé
Provided in the present invention is a method for synthesizing 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The synthesis method comprises the following steps: (1) adding acetaldehyde diethyl acetal and ethyl-(1-propenyl)-ether under the effect of a catalyst to produce 1,1,3-triethoxy-2-methyl-butane; (2) pyrolysis synthesizing 1,1,3-triethoxy-2-methyl-butane under the catalytic effects of isoquinoline and p-Toluenesulfonic acid to produce 1-methoxy-2-methyl-1,3-butadiene; (3) dissolving 1-methoxy-2-methyl-1,3-butadiene in anhydrous ethanol solvent for synthesis with a phase transfer catalyst, cetyl-trimethyl ammonium bromide, and a chlorinating agent, trichloroisocyanuric acid, to generate 4,4-diethoxy-3-methyl-1-chloro-butene; (4) combining 4,4-diethoxy-3-methyl-1-chloro-butene with a triphenylphosphine salt to produce a phosphonium salt; and (5) condensing the phosphonium salt under the effects of hydrogen peroxide in conjunction with sodium carbonate solution to generate 1,1,8,8-tetramethyl-2,7-dimethyl-2,4,6-octatriene; then hydrolyzing under acidic conditions to synthesize 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The present invention has a simple process route, is easy to operate, and has mild conditions, great yield, and great industrial value.
C07C 45/42 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par hydrolyse
C07C 45/52 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par pyrolyse, réarrangement ou décomposition par déshydratation et réarrangement faisant intervenir deux groupes hydroxyle de la même molécule
C07C 1/32 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés renfermant des hétéro-atomes autres que l'oxygène ou les halogènes, ou en addition à ceux-ci
C07C 41/06 - Préparation d'éthers par addition de composés à des composés non saturés uniquement par addition de composés organiques
C07C 41/18 - Préparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther
C07C 41/22 - Préparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther par introduction d'atomes d'halogènePréparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther par substitution d'atomes d'halogène par des atomes d'autres halogènes
Provided in the present invention is a preparation method for a phosphonic salt, comprising the step of: reacting 3,7,11-trimethyldodec-1,4,6,10-tetraene-3-ol with triarylphosphine and an acid in an alcohol solvent at 50-100° C. to form the phosphonic salt, wherein the acid is a sulfamic acid or methanesulfonic acid, and the alcohol solvent is a straight chain monohydric alcohol containing 1-5 carbon atoms. The method is performed in nearly neutral conditions, greatly reducing the generation of impurities and greatly obtaining phosphonic salt with an increased E content. The yield of lycopene obtained by using the phosphonic salt as a raw material is high.
A method for preparing a multichannel ceramic hollow fiber membrane. According to a certain ratio, ceramic powder, a high-molecular polymer, an organic solvent, and a dispersant are mixed evenly to prepare a membrane casting solution; and after bubble removing processing is performed on the membrane casting solution, a membrane green body is formed with the cooperation of a multichannel hollow fiber die and phase inversion. After the membrane green body is roasted at a high temperature, a multichannel ceramic hollow fiber membrane is formed. The multichannel ceramic hollow fiber membrane has an asymmetric structure and a skeleton structure in an inner cavity and can meet the strength and flux requirements of a ceramic hollow fiber membrane.
Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory (Chine)
Inventeur(s)
Lv, Chunlei
Pi, Shiqing
Chen, Jianhui
Lu, Dingqiang
Ouyang, Pingkai
Abrégé
Disclosed is a preparation method of the lycopene intermediate 3-methyl-4,4-dialkoxy-1-butaldehyde. The preparation method comprises the following steps: (1) reacting 2-methyl-3,3-dialkoxy-1-halopropane with magnesium powder in the solvent of anhydrous tetrahydrofuran at a temperature of 45˜65° C. to generate a mixture of Grignard reagents under the protection of an inert gas; and (2) adding N,N-disubstituted carboxamide to the mixture of Grignard reagents and reacting at a temperature of 10° C.˜35° C. to obtain 3-methyl-4,4-dialkoxy-1-butaldehyde. The process route of the present invention is simple and direct, the operation is easy, the conditions are mild and the yield is good, and thus the invention has commercial value.
C07C 45/00 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés
C07C 45/30 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par oxydation avec des composés contenant des atomes d'halogène, p. ex. par hypohalogénation
C07C 41/22 - Préparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther par introduction d'atomes d'halogènePréparation d'éthers par des réactions ne formant pas de liaisons sur l'oxygène de la fonction éther par substitution d'atomes d'halogène par des atomes d'autres halogènes
33.
STRONG SECRETORY SIGNAL PEPTIDE ENHANCING SMALL PEPTIDE MOTIF AND USE THEREOF
The present invention provides a strong secretory signal peptide enhancing small peptide motifs and the use thereof, the small peptide motif having the amino acid sequence of the following formula: M (αΧβΥγ / αΥβΧγ) n, wherein X represents an acidic amino acid; Υ represents an alkaline amino acid; α is 0 to 2 neutral amino acids; β represents 0 to 2 neutral amino acids; γ represents 1 to 10 neutral amino acids; and n is 1-3. The small peptide motif of the present invention can be used to construct a vector enhancing the secretion capacity of common signal peptides for improving the secretory expression of heterologous proteins.
Provided is a preparation method of a yeast cell immobilization medium, which comprises the following steps: (1) boiling a fiber material in boiling water and drying the fiber material; (2) soaking the fiber material in a surface modified aqueous solution with a concentration of 1-100 g/L, using hydrochloric acid to adjust a pH of the solution to 7.0, fully rinsing the fiber material in deionized water and drying the fiber material; (3) soaking the fiber material in a cross-linking agent aqueous solution with a concentration of 1-100 g/L, fully rinsing the fiber material in deionized water and drying the fiber material; and (4) attaching the fiber material to a supporting framework. Also provided are the yeast cell immobilization medium prepared using the preparation method and a method for producing ethanol using the yeast cell immobilization medium.
D06M 23/00 - Traitement des fibres, fils, filés, tissus ou articles fibreux faits de ces matières, caractérisé par le procédé
D06M 13/12 - Traitement des fibres, fils, filés, tissus ou articles fibreux faits de ces matières, avec des composés organiques non macromoléculairesUn tel traitement combiné avec un traitement mécanique avec des composés oxygénés aldéhydesTraitement des fibres, fils, filés, tissus ou articles fibreux faits de ces matières, avec des composés organiques non macromoléculairesUn tel traitement combiné avec un traitement mécanique avec des composés oxygénés cétones
C12P 7/06 - Éthanol en tant que produit chimique et non en tant que boisson alcoolique
Provided is a method for producing ethanol by coupling microorganism immobilization bed fermentation with separation. The method comprises the following steps: (1) immobilizing yeast cells in a fiber material in a bioreactor; (2) adding a fermentation medium for ethanol cyclic fermentation; (3) using a pervaporation membrane to separate fermentation liquid, wherein membrane trapped liquid returns to the bioreactor, and permeation liquid returns to the bioreactor after being absorbed by a resin column; and (4) separating absorbed ethanol from the resin column. On a basis of producing ethanol by using the fiber material to perform immobilization fermentation on yeast cells, and by installing a membrane separation apparatus and a resin separation apparatus, the method achieves an objective of simultaneous fermentation and separation. The method uses a immobilization carrier that is stable and non-toxic, and has a good absorption effect, thus improving an ethanol resistant characteristic. The resin separation method consumes low power to produce ethanol, has a good separation effect, and greatly improves a yield rate of ethanol.
An automatic tester for the thermal shock resistance of a ceramic material comprises: a bracket (4), a reciprocating device, a heating device (6), a cooling device and an automatic operation control device. The reciprocating device is arranged on the bracket (4) and provided with a sample basket (5) at one end thereof; the heating device (6) has a hollow structure, so that the sample basket (5) driven by the reciprocating device can pass in and out the interior of the heating device (6); the cooling device is positioned at the outlet end of the heating device (6). The automatic tester for the thermal shock resistance of the ceramic material can realize fully automatic precise control, and no artificial participation is required during a testing process, thereby greatly saving time and improving the testing efficiency; Besides, the automatic tester has a positive effect on evaluating the thermal shock resistance of the ceramic material.
A process for synthesizing acetyl citrate catalytically, comprising the following steps: 1) preparation of a catalyst: dipping woody active carbon into an acid solution, mixing, loading and fixing at room temperature, filtrating and drying to obtain the catalyst loaded and fixed with active carbon, 2) synthesis of citrate: into a reactor, adding (hydration) citric acid and alcohol, and a composite catalyst composed of the catalyst loaded and fixed with active carbon from step 1) and one of acids selected from H2SO4, benzene sulfonic acid, p-toluenesulfonic acid, methanesulfonic acid, NaHSO4 or trifluoromethanesulfonic acid, carrying out esterification at 130℃-160℃ filtrating and dealcoholizing the reaction mixture to obtain the crude critrate; 3) synthesis of acetyl citrate: adding acid anhydride into crude citrate from step 2), acylating at 60℃-90℃, and post treating the reaction product to obtain the end product of acetyl citrate. The composite catalyst is used in the esterification and acylation reaction of the present invention, which results in less amount of catalyst, high efficiency, good product quality, compact and integrated process, and therefore, the process is suitable for industrialized application.
C07C 67/08 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques avec le groupe hydroxyle ou O-métal de composés organiques
The present invention relates to a medium and high-temperature carbon-air battery, which is formed by a solid oxide fuel cell, a CO2 separating film, and carbon fuel. The solid oxide fuel cell is a tubular solid oxide fuel cell with one closed end. The carbon fuel is placed in the tubular solid oxide fuel cell. The CO2 separating film is sealed at an opening end of the solid oxide fuel cell. The carbon-air battery performs an electrochemical reaction by taking the carbon as the fuel and the oxygen in the air as the oxidizing gas. The carbon-air battery in the present invention is novel in structure design and is capable of generating power by the solid oxide fuel cell without external gas; and meanwhile, CO2 produced in the solid oxide fuel cell can be exhausted out of the system through the CO2 separating film at any time. The carbon-air battery in the present invention has high energy density and high application value.
The present invention provides clostridium acetobutylicum and an application thereof. A preservation number of the clostridium acetobutylicum provided in the present invention is CGMCC No.5234. The clostridium acetobutylicum provided in the present invention can be used for cogeneration of acetone, butanol, ethanol, and 3-hydroxy butanone through fermentation, so as to improve the economic benefit of butanol fermentation. NAD+ coupling and regeneration can be implemented by adding metabolism or growth regulating substances, so as to improve the product yield, and at the same time, the yield of co-generation products can be flexibly adjusted, so as to cater for the market demand.
The present invention relates to a process of controlling crystal form of Alite in Portland cement clinker, wherein the said Portland cement clinker is thermally treated in order to change the crystal form of Alite in Portland cement clinker, so as to improve performance of resulting Portland cement clinker. The said process of present invention is easy and feasible.
A preparation method of carbon modified filler is provided. The method is: putting the fillers into the reaction zone of a reactor, starting the first heating-up to 400-500° C. under the protective atmosphere at first, then introducing hydrogen after the heating-up; starting the second heating-up to 600-1200° C. after introducing hydrogen and simultaneously introducing the mixture of hydrogen and carbon source gas, keeping at the terminal temperature for 0.1-5 hours, introducing nitrogen and stopping heating after the reaction, cooling, and then getting the carbon modified filler. The above method can obtain a friction material with good mechanical properties, excellent friction and wear performances, stable friction coefficient at high temperature, good braking force and no heat recession.
ZHEJIANG MEDICINE CO.,LTD. XINCHANG PHARMACEUTICAL FACTORY (Chine)
Inventeur(s)
Lv, Chunlei
Pi, Shiqing
Chen, Jianhui
Lu, Dingqiang
Ouyang, Pingkai
Abrégé
Disclosed is a preparation method of the lycopene intermediate 3-methyl-4,4-dialkoxy-1-butaldehyd. The preparation method comprises the following steps: (1) reacting 2-methyl-3,3-dialkoxy-1-halopropane with magnesium powder in the solvent of anhydrous tetrahydrofuran at a temperature of 45°C-65°C to generate a mixture of Grignard reagents under the protection of an inert gas; and (2) adding Ν,Ν-disubstituted carboxamide to the mixture of Grignard reagents and reacting at a temperature of 10°C-35°C to obtain 3-methyl-4,4-dialkoxy-1-butaldehyde. The process route of the present invention is simple and direct, the operation is easy, the conditions are mild and the yield is good, and thus the invention has commercial value.
C07C 45/00 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés
C07C 47/198 - Composés saturés comportant des groupes —CHO liés à des atomes de carbone acycliques ou à de l'hydrogène contenant des groupes éther, des groupes , des groupes ou des groupes
43.
ANTI-IMPACT DEVICE OF DAMPING AND ENERGY-ABSORBING TYPE MADE FROM WEB-ENHANCED COMPOSITE MATERIAL
JIANGSU BOHONG NEW MATERIALS TECHNOLOGY CO., LTD. (Chine)
NANJING UNIVERSITY OF TECHNOLOGY (Chine)
Inventeur(s)
Liu, Weiqing
Fang, Hai
Zhu, Lu
Lu, Weidong
Abrégé
Disclosed is an anti-impact device of a damping and energy-absorbing type made from a web-enhanced composite material, comprising: an anti-impact unit (1) comprising a housing (2) and a filler material body (3) located inside the housing (2). The housing (2) is a solid housing comprised of a surface layer of composite material (4) or a sandwiched housing comprised of the surface layer of composite material (4) filled with a sandwiched material (5), and the sandwiched material (5). The filler material body (3) comprises a structural body of spatial grid (6) and an energy-consuming material (7), the structural body of spatial grid (6) being comprised of fibre webs (8) arranged in the housing (2) in a one-layer uni-directional, one-layer bi-directional, multi-layer uni-directional or multi-layer multi-directional way, and the energy-consuming material (7) is located between the fibre webs (8) and/or between the fibre webs (8) and the inner walls of the housing (2). The anti-impact device is low cost, has a high anti-impact performance, a long service life and is easy to assemble and replace.
E01F 15/14 - Dispositions de sécurité pour ralentir, maintenir sur la route ou arrêter les véhicules à la dérive, p. ex. bornes de protection ou pieux garde-fousDispositions pour réduire les dommages occasionnés aux structures du bord de la route par l'impact de véhicules spécialement adaptées pour une protection localisée, p. ex. pour piles de ponts, pour îlots de circulation
ZHEJIANG MEDICINE CO., LTD. XINCHANG PHARMACEUTICAL FACTORY (Chine)
Inventeur(s)
Chen, Jianhui
Lv, Chunlei
Pi, Shiqing
Lu, Dingqiang
Ouyang, Pingkai
Abrégé
Provided in the present invention is a method for synthesizing 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The synthesis method comprises the following steps: (1) adding acetaldehyde diethyl acetal and ethyl-(1-propenyl)-ether under the effect of a catalyst to acquire 1,1,3-triethoxy-2-methyl-butane; (2) pyrolysis synthesizing 1,1,3-triethoxy-2-methyl-butane under the catalytic effects of isoquinoline and p-Toluenesulfonic acid to acquire 1-methoxy-2-methyl-1,3-butadiene; (3) dissolving 1-methoxy-2-methyl-1,3-butadiene in anhydrous ethanol solvent for synthesis with a phase transfer catalyst, cetyl-trimethyl ammonium bromide, and a chlorinating agent, trichloroisocyanuric acid, to generate 4,4-diethoxy-3-methyl-1-chloro-butene; (4) combining 4,4-diethoxy-3-methyl-1-chloro-butene with a triphenylphosphine salt to acquire a phosphonium salt; and (5) condensing the phosphonium salt under the effects of hydrogen peroxide in conjunction with sodium carbonate solution to generate 1,1,8,8-tetramethyl-2,7-dimethyl-2,4,6-octatriene; then hydrolyzing under acidic conditions to synthesize 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The present invention has a simple process route, is easy to operate, and has mild conditions, great yield, and great industrial value.
C07C 45/52 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par pyrolyse, réarrangement ou décomposition par déshydratation et réarrangement faisant intervenir deux groupes hydroxyle de la même molécule
C07C 47/21 - Composés non saturés comportant des groupes —CHO liés à des atomes de carbone acycliques avec uniquement des liaisons doubles carbone-carbone comme insaturation
45.
PREPARATION METHOD OF 3,7,11-TRIMETHYLDODEC-2,4,6,10-TETRAENE-1-YL PHOSPHONIC SALT
ZHEJIANG MEDICINE CO., LTD. XINCHANG PHARMACEUTICAL FACTORY (Chine)
Inventeur(s)
Lv, Chunlei
Pi, Shiqing
Chen, Jianhui
Lu, Dingqiang
Ouyang, Pingkai
Abrégé
Provided in the present invention is a preparation method for a phosphonic salt, comprising the step of: reacting 3,7,11-trimethyldodec-1,4,6,10-tetraene-3-ol with triarylphosphine and an acid in an alcohol solvent at 50-100°C to form the phosphonic salt, wherein the acid is a sulfamic acid or methanesulfonic acid, and the alcohol solvent is a straight chain monohydric alcohol containing 1-5 carbon atoms. The method is performed in nearly neutral conditions, greatly reducing the generation of impurities greatly and obtaining phosphonic salt with an increased E content. The yield of lycopene obtained by using the phosphonic salt as a raw material is high.
A genetic engineering strain for producing succinic acid by using glucose and a method for producing acid by fermenting the strain are provided. The genetic engineering strain for producing succinic acid is E.coli strain BA205, deposited as CCTCC NO: M2011447. The construction process comprises: using the E.Coli strain lacking activities of lactate dehydrogenase (LDH) gene and pyruvate formate lyase (PFL) gene as the original strain, knockouting phosphoenolpyruvate carboxylase (PPC) gene by using homologous recombination technology, and over co-expressing phosphoenolpyruvate carboxylated kinase gene and nicotinic acid phosphoribosyl transferase. The method for producing succinic acid using the genetic engineering strain employs two-stage fermentation. With the biomass being increased in aerobic stage, and with acid being produced by fermentation in anaerobic stage.
Disclosed is a chemically defined culture medium for fermentation to produce succinic acid, comprising conventional components and critical growth factor components, wherein said critical growth factor components comprise biotin or 5-ALA, nicotinic acid, amino acid, methionine. Also disclosed is a method for fermentation to produce succinic acid using the said chemically defined culture medium.
The present invention relates to the field of biochemical engineering. Provided is a method for reusing water in a fermented butanedioic acid separation process. Water from the separation process is used in aerobic growth and anaerobic fermentation of E.coli AFP111 to produce butanedioic acid, while a final product is provided with a concentration of 55g/L, a yield of up to 91.6%, and, compared with the result of fermentation using a culture medium prepared with tap water, an 8.5% increase in butanedioic acid concentration. The advantages of the present invention are that evaporated water from the butanedioic acid separation process is recycled and reused, thus water reuse is implemented in industrialized production process of butanedioic acid, and at the same time, that the evaporated water produced during the butanedioic acid separation process comprises small amount of organic acids such as ethanoic acid and methanoic acid, the small amount of organic acids comprised in the evaporated water can serve as a carbon source for gluconeogenesis, thus enzymatic activities of some key enzymes within cells are increased, thereby facilitating anaerobic fermentation of bacterial cells to produce acid.
The invention relates to a method for the production of adenosine 3′,5′-monophosphate (cAMP) by a permeable microbial strain which uses polyols for protecting activities of enzymes and a cAMP precursor and phosphate as substrates. Glucose is used as an energy provider and metal ions and an organic solvent such as acetone are used in the medium.
C12P 19/32 - Nucléotides avec un système cyclique condensé, contenant un cycle à six chaînons, comportant deux atomes d'azote dans le même cycle, p. ex. nucléotides puriques, dinucléotide de la nicotinamide-adénine
The present invention relates to a method for preparing a fiber-reinforced SiO2 aerogel with rice husk ash as a raw material, obtained through the following steps: leaching rice husk ash with an inorganic base solution, treating with a cation exchange resin, neutralizing with an inorganic base to generate a silica sol, after the sol gets sticky, compounding with a reinforcing fiber, and allowing to sit, to obtain a silica composite gel, which is aged, washed with water, replaced with an organic solvent, and dried, to prepare a fiber fiber-reinforced SiO2 aerogel. The density of the resulting aerogel is 0.1 to 0.4 g/cm3, the specific surface area is up to 400 to 700 m2/g, the pore volume is 1.0 to 3.0 cm3/g, the average pore diameter is 5 to 30 nm, and the compressive strength is 0.5 to 2.5 MPa. In the present invention, agricultural waste rice husk ash which is cheap and has adequate sources is used as a raw material to replace silicone which is expensive and has certain toxicity, and fiber is used as a reinforcing body, to prepare the SiO2 aerogel. Under the premise of maintaining the excellent performance of the aerogel, the manufacturing cost of the aerogel is reduced, and the mechanical properties of the aerogel are improved.
Provided is a construction method of an escherichia coli genetically engineered bacteria producing succinic acid by xylose metabolism and the method for producing succinic acid by fermentation using the bacteria. The ATP biosynthesis pathway of escherichia coli is modified by means of molecular biology and the enzyme activity related to the pathway is over-expressed; thus the total ATP amount within escherichia coli cells is effectively increased such that the recombinant escherichia coli is able to grow using xylose metabolism, and the succinic acid synthesis efficiency is thereby significantly improved.
The present invention provides a method for desorbing and regenerating a butanol-adsorbing hydrophobic macroporous polymer adsorbent, comprising successively eluting the hydrophobic macroporous polymer adsorbent with butanol adsorbed therein using a water soluble low boiling point polar solvent and water. After a butanol-containing solution, such as a butanol fermentation liquor, has been adsorbed by a hydrophobic macroporous polymer adsorbent, the butanol adsorbed in the adsorbent can be thoroughly dissolved and removed by the desorption and regeneration method of the present invention; furthermore, the adsorbent can be directly regenerated to recover its adsorption capacity on a fixed bed adsorbing the butanol fermentation liquor, wherein the next stage of adsorption process can be directly entered without taking the adsorbent out from the fixed bed; therefore it saves a great deal of time and improves the regeneration efficiency. The method provided in the present invention has a simple process, a short separation time, easy, fast and complete desorption and regeneration, low equipment investment and pollution, and reduced energy consumption, and therefore production is easy on a large scale.
Provided are a fructosylated mangiferin, a preparation method therefor and a use thereof, wherein the fructosylated mangiferin has a structural formula represented by the following formula (I), the method for preparing the fructosylated mangiferin includes adding a substance with fructosylating enzymatic activity to a transformation liquid containing mangiferin for biotransformation reaction, so as to convert the mangiferin into the fructosylated mangiferin, wherein the transformation liquid contains the mangiferin and a glycosyl donor; as well as a use of the fructosylated mangiferin in preparation of a medicament for treatment of tumor-related diseases.
C07H 15/26 - Radicaux acycliques ou carbocycliques substitués par des hétérocycles
A61K 31/7048 - Composés ayant des radicaux saccharide et des hétérocycles ayant l'oxygène comme hétéro-atome d'un cycle, p. ex. leucoglucosane, hespéridine, érythromycine, nystatine
A61P 35/02 - Agents anticancéreux spécifiques pour le traitement de la leucémie
C12P 19/58 - Préparation d'O-glucosides, p. ex. glucosides avec un atome d'oxygène du radical saccharide lié directement, uniquement par des atomes de carbone acycliques, à un hétérocycle autre que saccharide, p. ex. bléomycine, phléomycine
54.
METHOD FOR PREPARING MACROPOROUS TITANIA OR PRECURSOR THEREOF
A method for preparing macroporous titania or its precursor is provided. Said method comprises mixing penta-coordinated or tetra-coordinated and layered alkali metal titanate with acid solution, stirring at 10-150°C, then reacting at 50-250°C in a reaction device, filtering to obtain solid material and drying after reaction, calcining said solid material at 300-600°C to obtain macroporous titania, titania precursor, or their mixture with most probable pore diameter of 20-100nm. The advantages of the said method are short reaction time, less energy consumption, simple and easily controlled preparation condition and process, wide raw material source, simple equipment and low investment cost. The pore diameter, pore capacity and specific surface area of the product may be regulated. The product can meet the requirement of different enzymes as carrier.
A method for preparing organic-inorganic composite materials is provided. It is a dispersion method that the inorganic phase is introduced into the polymer matrix uniformly. The core-shell structure, in which the inorganic materials are core and the organic materials are shell, is formed by first wrapping the inorganic materials with the organic materials in the same reactor. Therefore, the match between the polarity of inorganic phase and the polarity of polymer phase is increased.
C09C 3/00 - Traitement, en général, de substances inorganiques, autres que des charges fibreuses, pour améliorer leurs propriétés de pigmentation ou de charge
C09C 3/10 - Traitement par des composés organiques macromoléculaires
A continuous-production horizontal planetary ball mill having separate revolution and rotation drive mechanisms comprises a main shaft (9), a revolving plate (20), and a plurality of rotating planetary grinding drums (12) provided on said revolving plate. A revolution-driving gear (5) and a rotation-driving gear (7) are provided on the main shaft. The revolution-driving gear drives a revolution-driven gear (2) by means of a speed gear and transition gear (10, 11) mechanism in order to achieve revolution. The rotation-driving gear directly drives each rotation-driven gear (4) in order to achieve rotation. Alternatively, a dual-output shaft reduction gear (21) is used, wherein one output shaft drives the main shaft in order to achieve rotation and the other output shaft is provided with a revolution-driving gear that directly drives the revolution-driven gear in order to achieve revolution. Revolution and rotation in the mill occur in opposite directions. As the rotation-driving gear directly drives each rotation-driven gear, the contact stress between engaging gears is reduced by 40-50% on average, thereby reducing the wear and tear of the gears, significantly extending the service life of the gears, and enhancing the stability with which the machine operates. The inverse relationship between the revolution and the rotation in the mill increases the crushing force and enhances the grinding performance of the machine.
B02C 17/08 - Désagrégation au tonneau, c.-à-d. par des appareils constitués par une cuve où les produits à désagréger sont chargés, avec ou sans éléments particuliers de désagrégation tels que billes ou boulets à cuves non perforées à cuves à mouvement planétaire
57.
Secondary synthetic method for calcium sulphoaluminate mineral in Portland cement clinker
A method for secondarily synthesizing calcium sulphoaluminate mineral in Portland cement clinker is provided. The method includes adding gypsum into raw Portland cement, calcination, then heating twice to re-form calcium sulphoaluminate mineral that has decomposed at high temperature in the clinker. This method can increase the content of calcium sulphoaluminate mineral in the clinker. As a result, the advantages of the calcium sulphoaluminate mineral in the clinker may be obtained, such as improvement of the early stage performance and long-term performance of the cement clinker and increase in the quantity of mixture in the cement.
JIANGSU BOHONG NEW MATERIALS TECHNOLOGY CO., LTD. (Chine)
NANJING UNIVERSITY OF TECHNOLOGY (Chine)
Inventeur(s)
Fang, Hai
Liu, Weiqing
Lu, Weidong
Abrégé
Disclosed in the present invention is a cylindrical composite bridge anticollision device comprises an anticollision unit (1) composed of a shell (2) and a packing body (3) filled therein. The anticollision unit (1) comprises straight cylindrical anticollision members (4) and curved cylindrical anticollision members (5). The nonadjacent straight cylindrical anticollision members (4) are connected in series or parallel by a rod (6) so as to form a strip anticollision device. The straight cylindrical anticollision members (4) which are mutually adjacent and connected, or one straight cylindrical anticollision member (4) and one curved cylindrical anticollision member (5), or the curved cylindrical anticollision members (5) are fixed and connected by a flange (7) on the shell (2) using bolts (8) so as to form an annular or C-shaped anticollision device. A moving device (9) is provided inside the anticollision unit (1). The device has characteristics of simple structure, low cost, convenient installation and maintenance, good self-floating ability and buffering performance, and low elastic modulus.
A rhizopus oryzae strain, mutagenesis and screening methods thereof, and methods of producing fumaric acid by fermentation are provided. The said stain is named as Rhizopus oryzae ME-F13, and has been deposited in China Center for Type Culture Collection with the number CCTCC M 2010351 The said strain is obtained by the following method: physically mutagenizing the original strain ME-F12 through ion injection; then coating the processed bacteria solution on the solid selective plate containing 2-D-deoxylucose (2-DG) and culturing; picking 2-DG-resistant single colony, simultaneously saccharifying starchy material and fermenting it to produce fumaric acid. The enzyme activity of the strain screened by the above-mentioned method is improved. The strain can be directly used to ferment without saccharifying starchy material.
A method for preparing recombinant Escherichia coli to produce succinic acid through fermentation. The method mainly involves increasing the synthesis rate of succinic acid by overexpressing NAD+ biosynthesis-related genes in Escherichia coli, and adding a certain concentration of nicotinic acid to the anaerobic culture medium as the precursor material of NAD+ biosynthesis, thus increasing the strain growth rate in anaerobic conditions and the synthesis rate of succinic acid.
3/g. As a catalyst carrier, the rate of conversion of the hydrodesulfurization reaction of the material reaches as high as 98 percent, and as a lithium ion battery cathode material, the specific capacity of the lithium ion battery cathode material reaches as high as 220 mAh/g.
B01J 37/10 - Traitement thermique en présence d'eau, p. ex. de vapeur d'eau
H01B 1/04 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement soit de compositions à base de carbone-silicium, soit de carbone soit de silicium
H01B 1/08 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement d'autres substances non métalliques oxydes
B01J 29/03 - Catalyseurs contenant des tamis moléculaires n'ayant pas de propriétés d'échangeurs de base
B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
C04B 38/00 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/485 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques d'oxydes ou d'hydroxydes mixtes pour insérer ou intercaler des métaux légers, p. ex. LiTi2O4 ou LiTi2OxFy
Phosphorus-free corrosion and scale inhibitor and synthesis are provided. The following structure of the inhibitor is shown in (I), among which n is between 2 and 100. The inhibitor has the functional groups such as carboxylic, polyepoxysuccinic and dithiocarbamate etc.. Said functional groups have synergistic effect which make better scale and dispersion properties. The inhibitor is phosphorus-free and biodegradable which is favorable for environment protection. The raw materials of the product are easy to obtain. Relatively low in production cost or in price.
C02F 5/12 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques contenant de l'azote
63.
PROCESS FOR RECOVERING VEHICLE IN PHARMACEUTICAL INDUSTRY
Disclosed is a process for recovering a vehicle in pharmaceutical industry. Specific steps are as follows: adjusting a mother liquor from a pharmaceutical production workshop to pH 2-4 by adding an acid to remove organic basic ingredients in the vehicle, heating and distilling at a temperature controlled to be 50-150°C, adjusting the distilled mother liquor to pH 8-11 with a base, to further remove organic acidic ingredients in the vehicle, then separating by rectification in a rectification column (7), collecting light ingredients (B) at the top of the column, allowing heavy ingredients (water and vehicle) to enter the bottom (9) of the column, and allowing materials discharged from the bottom (9) of the column to enter a sub-rectification column (10) for recovery of the vehicle solution; and allowing the vehicle solution recovered through the sub-rectification column (10) to enter a pervaporation membrane separation unit (13) for alcohol-water separation, and allowing the dehydrated vehicle product (C) to enter the production workshop for recycle as a vehicle. In the recovery process, besides water, no other wastes are discharged, the resource utilization is high, the occupation area of the whole process is small, and the operation is simple.
B01D 3/02 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction dans des cornues ou bouilleurs
B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
64.
FRUCTOSYLATED PUERARIN, AND PREPARATION METHOD THEREFOR AND USE THEREOF
A new fructosylated puerarin represented by Formula (I), a preparation method therefor and a use thereof in preparation of drugs for treating cardio-cerebrovascular diseases and/or tumor related diseases. R1 and R2 in Formula (I) are each independently selected from hydrogen, methyl, ethyl, formyl, acetyl, methylamino, and sulfate group, R is a monoglycosyl of fructose or an oligosaccharyl of 2 to 5 fructoses connected. The preparation method for the fructosylated puerarin comprises biologically converting puerarin into fructosylpuerarin and oligosaccharylpuerarin in an aqueous or non-aqueous system.
C12P 19/60 - Préparation d'O-glucosides, p. ex. glucosides avec un atome d'oxygène du radical saccharide lié directement à un hétérocycle autre que saccharide ou à un système cyclique condensé contenant un hétérocycle autre que saccharide, p. ex. coumermycine, novobiocine
A61K 31/7048 - Composés ayant des radicaux saccharide et des hétérocycles ayant l'oxygène comme hétéro-atome d'un cycle, p. ex. leucoglucosane, hespéridine, érythromycine, nystatine
A61P 9/00 - Médicaments pour le traitement des troubles du système cardiovasculaire
Provided is a method of promoting synthesis of docosahexaenoic acid by a marine microorganism, which includes the addition of any one or any combinations of acetic acid, citric acid and simvastatin in an initial fermentation medium, or the supplement of acetic acid in the fermentation process. The said marine microorganism is selected from Thraustochytrid sp., Schizochytrium sp. and Crypthecodinium sp.. The method is simple, environmentally friendly, and cost effective.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
A preparation method of carbon modified filler is provided. The method is : putting the fillers into the reaction zone of a reactor, starting the first heating-up to 400-500 °C under the protective atmosphere at first, then inducing hydrogen after the heating-up; starting the second heating-up to 600-1200 °C after inducing hydrogen and simultaneously inducing the mixture of hydrogen and carbon source gas, keeping at the terminal temperature for 0.1-5 hours, inducing nitrogen and stopping heating after the reaction, cooling, then getting the carbon modified filler.
C09C 3/00 - Traitement, en général, de substances inorganiques, autres que des charges fibreuses, pour améliorer leurs propriétés de pigmentation ou de charge
67.
COPPER-FREE CERAMIC FRICTION MATERIAL AND PREPARATION METHOD THEREOF
Copper-free ceramic friction material and preparation method thereof are disclosed. The friction material includes at least 2-30wt% alkaline earth metal compound and 2-30wt% carbon fiber, wherein said alkaline earth metal compound is MxFeyTiOz, wherein M is alkaline earth metal element selecting from Be, Mg, Ca, Sr or Ba, x is 0.2-2, y is 1-2, z is 4-16. The obtained friction material has excellent friction wear property, high thermal conductivity, excellent high temperature fade resistance, and can effectively reduce the temperature of the friction surface during braking.
C08J 5/14 - Fabrication d'objets ou de matériaux abrasifs ou de friction
B28B 3/00 - Fabrication d'objets façonnés en utilisant des pressesPresses spécialement adaptées à ce travail
B28B 1/52 - Fabrication d'objets façonnés à partir du matériau spécialement adaptée à la fabrication d'objets à partir de mélanges contenant des fibres
Disclosed is a method for separating butanol. The method uses hydrophobic macroporous polymer adsorbent to separate butanol in a mixed solution, and the process comprises the following steps: 1) using macroporous polymer adsorbent to adsorb butanol in the mixed solution; 2) desorbing butanol from macroporous polymer adsorbent. The method is simple; the separation time is short; the efficiency of butanol recovery is high; and the separating cost is low.
Provided are methods for improving fermentation yield of polyunsaturated fatty acids, which include the step of producing polyunsaturated fatty acids by Schizochytrium in a fermentation medium with the addition of glycinebetaine or fucose. The addition of glycinebetaine or fucose can significantly increase the fermentation yield of polyunsaturated fatty acids by Schizochytrium. The method is simple, environmentally friendly, and cost effective.
C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
70.
ARTHROBACTER STRAIN USED FOR PRODUCING CYCLIC ADENOSINE MONOPHOSPHATE BY FERMENTATION AND USE THEREOF
An Arthrobacter stain CGMCC No.3584 used for producing cyclic adenosine monophosphate and the use thereof are provided. Comparing to initial stain, the Arthrobacter stain CGMCC No.3584 can increase the yield of cyclic adenosine monophosphate by three times. After more than ten passages, the Arthrobacter stain can steadily maintain the property of producing cyclic adenosine monophosphate.
Provided is a crystallization process of cyclic adenosine 3',5'-monophosphate, which comprises the following steps: 1) reacting an aqueous solution of cyclic adenosine 3',5'-monophosphate with a base to obtain a salt of cyclic adenosine 3',5'-monophosphate; 2) reacting the cyclic adenosine 3',5'-monophosphate salt solution obtained in step 1) with an acid to obtain cyclic adenosine 3',5'-monophosphate; 3) keeping cyclic adenosine 3',5'-monophosphate obtained in step 2) at 0-15℃.
The present invention provides a method of preparing cyclic adenosine monophosphate, which includes the use of Arthrobacter sp. as an engineering bacterium, and the addition of precursors, inhibitors of glycolytic pathway and/or activators of tricarboxylic acid cycle into a fermentation medium, so as to acquire the cyclic adenosine monophosphate by fermentation. Further provided is a use of precursors, inhibitors of glycolytic pathway and/or activators of tricarboxylic acid cycle for preparing cyclic adenosine monophosphate by Arthrobacter sp.. The present invention inhibits the excessive glycolysis, increases the flux of pentose phosphate pathway, and enhances the tricarboxylic acid cycle by the addition of precursors, inhibitors of glycolytic pathway and/or activators of tricarboxylic acid cycle, so as to redistribute rationally the metabolic flux of central metabolic pathways, make the carbon flux more efficiently direct to the target product - cyclic adenosine monophosphate, and synthesize cyclic adenosine monophosphate by using carbon source efficiently.
C12P 19/32 - Nucléotides avec un système cyclique condensé, contenant un cycle à six chaînons, comportant deux atomes d'azote dans le même cycle, p. ex. nucléotides puriques, dinucléotide de la nicotinamide-adénine
73.
METHOD FOR PREPARING NANO-NICKEL POWDER WITH MICROCHANNEL REACTOR
A method for preparing nano-nickel powder with microchannel reactor is provided. The method comprises the following steps: preparing the alcoholic solution of soluble nickel salt and the alcoholic solution of alkaliferous hydrazine hydrate; injecting the two solutions into a heated micromixer according to a certain molar ratio of hydrazine hydrate/nickel; directly injecting the mixed solution into the heated microchannel reactor; separating and washing the products and then storing them without air. During the preparation process, solvents partially vaporize to form a flowing form of gas phase and liquid phase section flows, which can eliminate the blockage in the microchannel reactor during the process of synthesizing the nano granules, and thereby the nano-nickel granules can be continuously synthesized. Furthermore, the preparation process has the advantages of no addition of any surfactants such as dispersing agents, low cost of raw materials, simple operation, uniform nano-nickel granule size, good dispersibility and the like.
B22F 9/24 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par un procédé chimique avec réduction de mélanges métalliques à partir de mélanges métalliques liquides, p. ex. de solutions
74.
METHOD FOR MICROBIAL PRODUCTION OF CYCLIC ADENOSINE 3', 5'-MONOPHOSPHATE
Disclosed is a method for the production of cyclic adenosine 3', 5'-monophosphate (cAMP) by the permeable microbial strain, which uses polyols for protecting the activity of the enzymes, uses cAMP precursor and phosphate radical ions as substrate, uses glucose as energy provider, and uses metal ions in the medium. The method is simple, economical and has high yield.
C12P 19/32 - Nucléotides avec un système cyclique condensé, contenant un cycle à six chaînons, comportant deux atomes d'azote dans le même cycle, p. ex. nucléotides puriques, dinucléotide de la nicotinamide-adénine
Provided is a cleaning process of producing lactic acid. Firstly saccharification liquid is prepared through saccharated materials, then fermented with nutritive materials and lactic acid bacteria, and liquid alkali is used to adjust the pH. The fermentation broth is filtrated with porous membrane, and the lactic acid bacteria in the interception liquid are then reintroduced into the porous membrane for recycling. The permeate from porous membrane is subjected to nanofiltration to be decolored and purified. The concentrated solution from nanofiltration and the cleaning liquid from fermentation tank and its affiliated equipment are filtrated and sterilized by using ceramic membrane, and then are reintroduced into the fermentation unit for recycling. The permeate from nanofiltration is then subjected to bipolar electrodialysis system to prepare lactic acid, and the liquid alkali produced at the same time is reintroduced into the fermentation tank for recycling. The lactic acid is finally concentrated by using vacuum distillation. The process recycles the bacteria in the liquid alkali and matured fermentation broth, and is characterized by low material consumption and emission, low pollution, reduced cost and cleanness and environmentally protection of the whole production process.
A method for preparing organic - inorganic composite materials is provided. It is a dispersion method that the inorganic phase is introduced into the polymer matrix uniformly. The core - shell structure, in which the inorganic materials are core and the organic materials are shell, is formed by first wrapping the inorganic materials with the organic materials in the same reactor. Therefore, the match between the polarity of inorganic phase and the polarity of polymer phase is increased. It is not necessary to separate the introduced inorganic materials and the homogeneous solution can be formed through adding other compositions that are used for forming the organic - inorganic composite materials directly into the same reactor and stirring at a low speed. The organic - inorganic composite materials with the highly dispersed inorganic materials are formed ultimately after the molding process and the corresponding subsequent treatment. Since it is no need to use ultrasonic and high-energy mechanical agitation etc., the power consumption used for preparing the organic - inorganic composite materials is reduced and the preparation costs are reduced. Therefore, it can be used widely.
C08L 83/00 - Compositions contenant des composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant uniquement du silicium, avec ou sans soufre, azote, oxygène ou carboneCompositions contenant des dérivés de tels polymères
C08L 25/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un cycle carbocyclique aromatiqueCompositions des dérivés de tels polymères
C08L 29/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par un radical alcool, éther, aldéhyde, cétone, acétal ou cétalCompositions contenant des polymères d'esters hydrolysés d'alcools non saturés avec des acides carboxyliques saturésCompositions contenant des dérivés de tels polymères
C08L 101/00 - Compositions contenant des composés macromoléculaires non spécifiés
C08K 3/00 - Emploi de substances inorganiques en tant qu'adjuvants
77.
DRY DUST REMOVAL METHOD IN ORGANIC CHLOROSILANE PRODUCTION
Dry dust removal method in organic chlorosilane production is provided, in which the detailed steps are as follows: delivering high temperature flue gas (a) from fluidized bed reactor (I) into inorganic film cross-flow filter (II) to remove dust for the first time; delivering the thick gas (c) trapped by inorganic film cross-flow filter (II) into bag filter(III) to remove dust for the second time; returning the mixed gas (f) of passing through bag filter (III) to the air intake of inorganic film cross-flow filter (II); condensing the residual clean gas (b) from the osmotic side of inorganic film in condenser (A), and then rectifying in rectifying column (B) to separate the products of chloromethane (g) and methyl chlorosilane (h) to obtain the product of methyl chlorosilane (h); returning chloromethane to fluidized bed reactor to take part in reaction; retreating the dust (e) trapped by inorganic film cross-flow filter and bag filter, and then returning it to fluidized bed reactor (I) to take part in reaction.
This disclosure provides a method of making polylactic acid using carbon dioxide adducts of carbenes, wherein the adducts of carbenes have a structure represented by formula (I) as follows:
B01J 31/04 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant des composés organiques ou des hydrures métalliques contenant des acides carboxyliques ou leurs sels
The present disclosure provides a method for preparing polylactic acid and its products using a twin-screw extruder, comprising the step of mixing carbon dioxide adducts of carbene and lactide, and obtaining polylactic acid and its products via reactive extrusion using a twin-screw extruder. Some of the carbon dioxide adducts or carbene have the following general formula:
This disclosure provides methods of controlled polymerization of cyclic compounds catalyzed by carbene derivatives having a general formula as shown below, and to obtain a biodegradable polymeric material having a large molecular weight, a narrow dispersity, and no metallic impurity.
C08G 63/82 - Procédés de préparation caractérisés par le catalyseur utilisé
C08G 65/26 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule à partir d'éthers cycliques par ouverture d'un hétérocycle à partir d'éthers cycliques et d'autres composés
C08G 69/20 - Polymérisation anionique caractérisée par les catalyseurs utilisés
C08G 77/08 - Procédés de préparation caractérisés par les catalyseurs utilisés
B01J 31/04 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant des composés organiques ou des hydrures métalliques contenant des acides carboxyliques ou leurs sels
81.
PROCESS OF REGULATING AND CONTROLLING ALITE CRYSTAL IN PORTLAND CEMENT CLINKER
A process of regulating and controlling alite crystal in Portland cement clinker is provided. By heating the Portland cement clinker, its performance is improved because of the changes of the alite crystal of the said clinker. The process is simple and feasible.
A method for secondarily synthesizing calcium sulphoaluminate mineral in Portland cement clinker is provided. The method includes adding plaster into raw Portland cement and calcination, then heating twice to re-form calcium sulphoaluminate mineral that is decomposed at high temperature in the clinker. This method can increase the content of calcium sulphoaluminate mineral in the clinker, sufficiently exert the advantages of the calcium sulphoaluminate mineral in the clinker, enhance the early stage performance and long-term performance of the cement clinker, and increase the quantity of mixture in the cement.
A mesoporous composite titania material is provided, wherein, inorganics are combined on the outer surface and the pore walls of a mesoporous titania. The inorganics contain at least one element selected from the group consisting of carbon, silicon, sulphur, phosphorus and selenium. The content of the inorganics calculated by mass of the above elements is 0.01 %-25 % on the basis of the mass of the composite material. The composite material has at least one most probable pore diameter of 3-15 nm, a specific surface area of 50-250 m2/g and a pore volume of 0.05-0.4 cm3/g. The composite material can be used as a catalyst support for hydrodesulfurization, allowing the conversion ratio being as high as 98 %. The composite material can also be used as cathode material of lithium ion battery, allowing the specific capacity of the material being as high as 220 mAh/g. Also disclosed is a method for preparing the composite material, which comprises the steps of impregnation and calcination.
B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
B01J 37/02 - Imprégnation, revêtement ou précipitation
A method of Prussian blue dress electrode is provided. The method includes: a based substrate is surface preprocessed; the preprocessed electrode is mounted in aerosol deposition box; an anion solution and KCl water solution are prepared, a cationic solution and KCl water solution are prepared, two have the same concentration; the anion solution is K4Fe(CN)6 or K3Fe(CN)6 solution, the cationic solution is FeCl3 or (NH4)Fe(SO4)2 solution; the prepared anion solution and KCl water solution are loaded into an ultrasonic atomizer, the solution is ultrasonic atomized to aerosol, then the solution is pressed in the aerosol deposition box; the cationic solution and KCl water solution are ultrasonic atomized to aerosol after some time, then the solution is pressed in the aerosol deposition box for some time, the Prussian blue dress electrode is obtained.
A process for preparing supported palladium or palladium alloy membrane is provided. The process comprises modifying the surface of porous ceramics with pencil so as to obtain a uniform and smooth modification layer, and then producing palladium or palladium alloy membrane on the modified surface of porous ceramics by electroless plating method. Modifying the surface of porous ceramics with pencil can reduce surface roughness and eliminate surface disfigurements, and consequently the uniformity and the hydrogen permeability of membrane can be improved. The process is simple, cost-effective and environment-friendly.
B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
A porous material surface orifice's diameter distribution measuring method, involves immersing a surface of a porous body sample(5) into a liquid wetter, and adjusting gas pressure from high to low to measure flow capacity. When the gas pressure drops to a certain value and the flow capacity drops to zero, the gas pressure corresponds to the diameter of the largest orifice on the porous body surface. An acquired gas pressure-flow capacity relation curve i.e. humidity curve, and the acquired gas pressure with sample(5) in dry state-flow capacity relation curve i.e dry curve, are contrasted to calculate and get orifice's diameter distribution. The gas pressure is drawn by half of the dry curve flow capacity value to get a semidry curve. The orifice's diameter corresponding to the intersection pressure between the semidry curve and the humidity curve is the orifice's average diameter.
Provided is a cleaning process of producing lactic acid. Firstly saccharification liquid is prepared through saccharated materials, then fermented with nutritive materials and lactic acid bacteria, liquid alkali is used to adjust the pH. The fermentation broth is filtrated with porous membrane, and the lactic acid bacteria in the interception liquid is then reintroduced in the fermentation unit for recycling. The permeate from porous membrane is subjected to nanofiltration to be decoloured and purified. The concentrated solution from nanofiltration and the cleaning liquid from fermentation tank and its affiliated equipments are filtrated and sterilized by using ceramic membrane, and then are reintroduced in the fermentation unit for recycling. The permeate from nanofiltration is then subjected to bipolar electrodialysis system to prepare lactic acid, and the liquid alkali produced at the same time is reintroduced in the fermentation tank for recycling. The lactic acid is finally concentrated by using vacuum distillation.
A method for preparing ethyl (S)-4-chloro-3-hydroxybutanoate ((S)-CHBE) through asymmetric reduction from ethyl 4-chloroacetoacetate (COBE), in which the catalyst is carbonyl reductase having amino acid sequence shown in SEQ ID NO: 2 from Pichia stipitis, the cofactor is NADPH, the conversion ratio for the substrate is more than 95%, and the optical purity of product is 100% enantiomeric excess.
A method for preparing polylactic acid and products thereof using a twin-screw extruder, in which a carbene carbon dioxide adduct of formula (I) is mixed with lactide, and then reactive extruded through a twin-screw extruder to produce polylactic acid and products thereof. In formula (I), the dotted line represents optional double bond; X1 is selected from S or N; X2 is selected from C or N; R1, R2 are selected from the same or different groups of hydrogen, alkyl with 1~10 carbon atoms, alkyl with 1~10 carbon atoms and substituted by one or more of halogen atom, hydroxyl group, phenyl and cyano group, cycloalkyl with 3~6 carbon atoms, halogen atom, adamantyl, phenyl and phenyl substituted by one or more of halogen atom, hydroxyl group, alkyl and cyano group; R3, R4 are selected from the same or different groups of hydrogen, halogen atom, cyano group, hydroxyl group, alkyl with 1~4 carbon atoms, alkyl with 1~4 carbon atoms and substituted by one or more of halogen atom, hydroxyl group, phenyl and cyano group, phenyl and phenyl substituted by one or more of halogen group, hydroxyl group, alkyl and cyano group; or R3 and R4 are connected to form a ring with 3~8 carbon atoms; or R2 and R3 are connected to form a five- or six-membered N-containing heterocycle which is unsubstituted.
A method of adjustable and controllable ring-opening polymerization of cyclic compounds by catalysis of carbine derivatives. The carbene derivatives are carbene-carbon dioxide adducts, which are represented by the formula below, wherein, the dashed line represents optional double bond; X1 is selected from S or N; X2 is selected from C or N; R1 and R2 are the same or not, selected from hydrogen, alkyl with 1 to 10 carbon atoms, alkyl with 1 to 10 carbon atoms and substituted by one or more of the group of halogen, hydroxyl, phenyl and cyano group, cycloalkyl with 3 to 6 carbon atoms, halogen, adamantyl, phenyl and substituted phenyl; R3 and R4 are the same or not, selected from hydrogen, halogen, cyano, hydroxyl, phenyl, substituted phenyl, alkyl with 1 to 4 carbon atoms and alkyl with 1 to 4 carbon atoms and substituted by one or more of the group of halogen, hydroxyl, phenyl and cyano group; or R3 and R4 constitute cycloalkyl or cycloalkenyl with 3 to 8 carbon atoms, or R3 and R4 constitute benzene ring, or R2 and R3 constitute unsubstituted five- or six-membered N-heterocyclic ring.
A preparation method of polylactic acid by catalysis of carbene derivatives. The carbene derivatives are carbene-carbon dioxide adducts, which are represented by the formula (I), wherein, the dashed line represents optional double bond; X1 is selected from S or N; X2 is selected from C or N; R1 and R2 are the same or not, selected from hydrogen, alkyl with 1 to 10 carbon atoms, alkyl with 1 to 10 carbon atoms and substituted by one or more of the group of halogen, hydroxyl, phenyl and cyano group, cycloalkyl with 3 to 6 carbon atoms, halogen, adamantyl, phenyl and substituted phenyl; R3 and R4 are the same or not, selected from hydrogen, halogen, cyano, hydroxyl, phenyl, substituted phenyl, alkyl with 1 to 4 carbon atoms and alkyl with 1 to 4 carbon atoms and substituted by one or more of the group of halogen, hydroxyl, phenyl and cyano group; or R3 and R4 constitute cycloalkyl or cycloalkenyl with 3 to 8 carbon atoms, or R3 and R4 constitute benzene ring, or R2 and R3 constitute unsubstituted five- or six-membered N-heterocyclic ring.
A method for quick preparing titanium oxide or precursor thereof with a controllable structure from micropore to mesopore is provided. The method is characterized in that the alkali metal titanate as raw material is reacted for 0.5 ~ 72 hours in the wet atmosphere with humidity of 2 ~ 100 % at temperature of 20 ~ 250 °C, then washed with water or acid, finally calcined in air atmosphere or heat-treated in solvent. The method has advantages that the raw material is easy to be obtained, the conditions and preparation are controllable, the pore structure may be adjusted from micropore to mesopore, crystal mixing and doping are easy, reacting time is short, preparing cost is low, and the said method is suitable for large scale production and so on. The most probable aperture of titanium oxide or precursor thereof with a controllable structure from micropore to mesopore is in the range of 1~20 nm, the pore volume thereof is in the range of 0.05 ~ 0.4 cm3/g, and the specific surface area thereof is more than 30 m2/g.
brevets
