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pour Federalnoe Gosudarstvennoe Budzhetnoe Uchrezhdenie Nauki Institut Kataliza Im. G.K. Boreskova Sibirskogo Otdeleniya Rossiiskoi Akademii Nauk
FEDERALNOE GOSUDARSTVENNOE BUDZHETNOE UCHREZHDENIE NAUKI INSTITUT KATALIZA IM. G.K. BORESKOVA SIBIRSKOGO OTDELENIYA ROSSIISKOI AKADEMII NAUK (Russie)
Inventeur(s)
Zenkovets, Galina Alexeevna
Bondareva, Valentina Mikhailovna
Shutilov, Alexey Alexandrovich
Ivanova, Galina Gennadievna
Shadrina, Lubov Alexeevna
Sobolev, Vladimir Ivanovich
Abrégé
The invention relates to a catalyst for producing ethylene by oxidative dehydrogenation of ethane and constitutes a complex oxide composition applied to silicon dioxide that contains 20-80 mass%. A method is described for preparing and producing said catalyst, said method consisting in preparing an aqueous suspension that contains in specified quantities the components Mo, V, Nb, Sb, Ce, and the carrier SiO2, spray-drying the suspension to obtain powdered catalyst, stepwise air-drying of the powder in a drying oven, and heat treatment in a helium or argon stream. The technical result consists in decreasing the number of process steps and increasing the ethylene yield to 72-73%.
B01J 23/16 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium
B01J 23/10 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe des terres rares
B01J 37/02 - Imprégnation, revêtement ou précipitation
C07C 5/48 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par déshydrogénation avec un accepteur d'hydrogène avec l'oxygène comme accepteur
2.
METHOD FOR PRODUCING A CATALYST FOR METHANE REFORMING WITH CARBON DIOXIDE
FEDERALNOE GOSUDARSTVENNOE BUDZHETNOE UCHREZHDENIE NAUKI INSTITUT KATALIZA IM. G.K. BORESKOVA SIBIRSKOGO OTDELENIYA ROSSIISKOI AKADEMII NAUK (Russie)
Inventeur(s)
Sadykov, Vladislav Alexandrovich
Smirnova, Marina Yurievna
Mezentseva, Natalya Vasilievna
Pavlova, Svetlana Nikolaevna
Fedorova, Yulia Evgenievna
Simonov, Mikhail Nikolaevich
Abrégé
The invention relates to the field of development of oxide materials and catalysts and can be used in the chemical industry for producing single-phase oxide materials and catalysts based thereon to be used in the reforming of methane with carbon dioxide. A method for producing a catalyst is described, which comprises solvothermal supercritical synthesis of a single-phase mixed cerium-zirconium oxide which optionally includes nickel oxide in a supercritical alcohol. The alcohol used is isopropanol or butanol. Acetylacetone is added as a complexing agent during the step of dissolving a Zr salt acting as a zirconium oxide precursor. The catalyst is a nanocrystalline oxide with a single-phase structure, which comprises nickel oxide added during the supercritical synthesis step or deposited onto the resulting oxide using the impregnation technique. The mixed cerium-zirconium oxide comprising nickel oxide exhibits increased catalytic activity and stability in the reforming reaction of methane with carbon dioxide that results in syngas.
B01J 23/83 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec des terres rares ou des actinides
B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes
B82Y 30/00 - Nanotechnologie pour matériaux ou science des surfaces, p. ex. nanocomposites
B82Y 40/00 - Fabrication ou traitement des nanostructures
3.
CATALYST AND METHOD FOR OBTAINING ULTRA-HIGH-MOLECULAR-WEIGHT POLYETHYLENE USING SAID CATALYST
FEDERALNOE GOSUDARSTVENNOE BUDZHETNOE UCHREZHDENIE NAUKI INSTITUT KATALIZA IM.G.K.BORESKOVA SIBIRSKOGO OTDELENIYA ROSSIISKOI AKADEMII NAUK (Russie)
Inventeur(s)
Mikenas, Tatyana Borisovna
Nikitin, Valentin Evgenievich
Zakharov, Vladimir Alexandrovich
Matsko, Mikhail Alexandrovich
Abrégé
The invention relates to a method for obtaining ultra-high-molecular-weight polyethylene (UHMWPE) using a supported Ziegler-type catalyst, the composition of which contains a transition metal compound on a magnesium-bearing support. The present catalyst for obtaining ultra-high-molecular-weight polyethylene contains a mixture of titanium compounds (TiCl4, Ti(OEt)2Cl2x) and vanadium compounds (VCl4, VOCl3) on a magnesium-bearing support, which is obtained by reacting a solution of an organomagnesium compound composed of: Mg(C6H5)2n MgCl2 mR2O, where: n=0.37-0.7, m=2, R20 is an ether with R=i-Am, n-Bu, with the product of a reaction between an alkylchlorosilane, composed of: R'kSiCl4-k, where: R' is an alkyl or a phenyl and k=0, 1, 2, and the silicon tetraalkoxide Si(OEt)4. The ultra-high-molecular-weight polyethylene is obtained by suspension, in the medium of an aliphatic hydrocarbon diluting agent, using the catalyst described above in conjunction with an organoaluminium cocatalyst at elevated polymerisation temperatures (70-90°C).
FEDERALNOE GOSUDARSTVENNOE BUDZHETNOE UCHREZHDENIE NAUKI INSTITUT KATALIZA IM. G.K. BORESKOVA SIBIRSKOGO OTDELENIYA ROSSIISKOI AKADEMII NAUK (Russie)
Inventeur(s)
Mezentseva, Natalya Vasilievna
Sadykov, Vladislav Alexandrovich
Pavlova, Svetlana Nikolaevna
Vostrikov, Zakhar Yurievich
Abrégé
The invention relates to the field of developing and manufacturing catalysts, and can be used in the chemical industry for the process of carbon dioxide conversion of natural gas and/or methane, with the aim of producing a synthesis gas in a wide range of temperatures and with high reagent feeding speeds. Described is a catalyst in the form of a nanocomposite Ni-containing material, composed of an oxide having a perovskite-like structure or a fluorite-like structure with high oxygen mobility, platinum metals, nickel, and an oxide additive, having a high specific surface area and/or good thermal stability. The said catalyst may be used as an active component when applying to various types of thermally-conductive carriers (FeCrAl foil or mesh, porous carriers based on nickel and aluminum or silicon carbide, microchannel plates, etc.). The technical result consists in the high activity and stability of the claimed catalysts, which allow for carrying out the process of carbon dioxide conversion of methane, including natural gas, at higher loads, up to 540,000 h-1 (at shorter contact times, as short as 0.015 s).
B01J 23/83 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec des terres rares ou des actinides
B01J 23/84 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium
B01J 23/89 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer combinés à des métaux nobles
C01B 3/38 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants avec des catalyseurs
B82B 1/00 - Nanostructures formées par manipulation d’atomes ou de molécules, ou d’ensembles limités d’atomes ou de molécules un à un comme des unités individuelles
B82Y 30/00 - Nanotechnologie pour matériaux ou science des surfaces, p. ex. nanocomposites
5.
CATALYTIC SYSTEM AND METHOD FOR PRODUCING A REACTOR POWDER OF ULTRA-HIGH-MOLECULAR-WEIGHT POLYETHYLENE
FEDERALNOE GOSUDARSTVENNOE BUDZHETNOE UCHREZHDENIE NAUKI INSTITUT KATALIZA IM. G.K. BORESKOVA SIBIRSKOGO OTDELENIYA ROSSIISKOI AKADEMII NAUK (Russie)
FEDERALNOE GOSUDARSTVENNOE BUDZHETNOE UCHREZHDENIE NAUKI INSTITUT SINTETICHESKIH MATERIALOV IM. N.S. ENIKOLOPOVA ROSSIISKOI AKADEMII NAUK (Russie)
Inventeur(s)
Ivancheva, Neonila Ivanovna
Chvalun, Sergey Nikolaevich
Ivanchev, Sergei Stepanovich
Ozerin, Alexandr Nikiforovich
Bakeev, Nikolai Fillipovich
Eremeeva, Marina Gennadievna
Nikolaev, Denis Alexandrovich
Pakhomov, Nikolai Alexandrovich
Oleinik, Irina Vladimirovna
Tolstikov, Genrih Alexandrovich
Abrégé
A catalytic system based on bis(phenoxy-imine) complexes, functionalized by oxyallyl groups, of titanium chloride of the general structure represented in the diagram, for producing a reactor powder of ultra-high-molecular-weight polyethylene which is capable of being processed into ultra-high-strength and ultra-high-modulus strips and fibres by a cold forming method, is described, having the following structure: where: (I) R1 is tBu, R2 is СН3O; (II) R1 is isopropylbenzyl, R2 is СН3; (IV) R1 is isopropylbenzyl, R2 is Н. In the bis(phenoxy-imine) complex of titanium chloride, the oxyallyl substituent is in the para position of the phenyl group at the imine nitrogen. Use is made of a bis(phenoxy-imine) complex, functionalized by an oxyallyl group, of titanium chloride, with the phenoxy group containing the isopropylbenzyl substituent in the ortho position. A process for polymerizing ethylene is carried out at a constant temperature of 20-60°С and at a constant ethylene pressure of 0.15-0.4 MPa. A method is described for producing a reactor powder of UHMWPE which is capable of being processed in a simplified manner into ultra-high-strength and ultra-high-modulus strips and fibres, using the same catalytic systems. A method is described for the simplified cold forming of a reactor powder of UHMWPE, which is produced by polymerization in the presence of catalytic systems I, II and IV.