Abstract

The present invention relates to the use of a catalyst for production of methanol from methane, wherein the catalyst comprises a zeolite having Al pairs in the skeleton of at least 10 percent, based on the total number of all aluminium atoms in the zeolite, and further comprising a transition metal cation coordinated at beta-cationic positions, selected from the group consisting of Fe, Co, Mn, and Ni, wherein the ratio of the transition metal to Al is in the range of from 0.01 to 0.5; and with the proviso that the zeolite is not ZSM-5 and mordenite. The present invention further relates to the method of production of methanol, the catalyst for production of methanol by direct oxidation of methane, and to a method of production thereof.

IPC Classes  ?

• B01J 29/69 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
• B01J 29/78 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
• C07C 29/50 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups with molecular oxygen only

Abstract

The present invention relates to the use of a catalyst for production of methanol from methane, wherein the catalyst comprises a zeolite having Al pairs in the skeleton of at least 10 percent, based on the total number of all aluminium atoms in the zeolite, and further comprising a transition metal cation coordinated at beta-cationic positions, selected from the group consisting of Fe, Co, Mn, and Ni, wherein the ratio of the transition metal to Al is in the range of from 0.01 to 0.5; and with the proviso that the zeolite is not ZSM-5 and mordenite. The present invention further relates to the method of production of methanol, the catalyst for production of methanol by direct oxidation of methane, and to a method of production thereof.

IPC Classes  ?

• C07C 29/48 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups
• C07C 31/04 - Methanol
• C07C 29/50 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups with molecular oxygen only
• B01J 29/76 - Iron group metals or copper
• B01J 29/06 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof
• B01J 29/08 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y
• B01J 29/88 - FerrosilicatesFerroaluminosilicates
• B01J 29/66 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38 containing iron group metals, noble metals or copper
• B01J 29/04 - Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
• B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 29/72 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing iron group metals, noble metals or copper
• B01J 29/78 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
• B01J 29/68 - Iron group metals or copper
• B01J 29/69 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
• B01J 29/74 - Noble metals

Abstract

The present invention discloses a method of manufacturing a porous diamond layer (6) and a nanofiber supported porous diamond body (7). The method comprising step of seeding of diamond nanoparticles into a nanofibers of any material susceptible withstand of plasma-enhanced deposition conditions. Seeded nanofibers are then mixed in a sacrificial material. This mixture is then applied on a substrate (2) and dried to form a solid nanofibers/sacrificial material composite film. Resulting composite film is then subjected to plasma enhanced chemical vapour deposition of the diamond under conditions where the sacrificial material is decomposed. These steps can be repeated for forming a nanofibers supported porous diamond layer (6) of a desired thickness. The diamond can be doped by boron. Such a conductive porous boron doped diamond layers (1, 6) serve for microelectronical (MEMS) applications where chemical stability is required. In particularly, porous conductive boron-doped diamond films can be employed as a sensors, supercapacitor and/or a filter to separate organic electrochemical substances.

IPC Classes  ?

• C23C 16/27 - Diamond only

Abstract

The present invention relates to a catalyst for a selective catalytical reduction of nitrogen oxides, which contains beta zeolite having the content of aluminium in the lattice corresponding to Si/Al ratio in the range of from 3 to 8, and containing cobalt ions as active centers, and to its method of preparation. The invention also relates to a method of catalytic reduction of nitrogen oxides and use thereof.˙

IPC Classes  ?

• B01J 29/76 - Iron group metals or copper
• B01J 29/80 - Mixtures of different zeolites
• B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
• C01B 39/46 - Other types characterised by their X-ray diffraction pattern and their defined composition
• B01J 29/24 - Iron group metals or copper
• B01J 29/46 - Iron group metals or copper
• B01J 29/68 - Iron group metals or copper
• C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof

Abstract

A method for detection and determination of organic compounds by means of electrochemical activation in an electrochemical cell is described. The flow electrochemical cell provides an alternative to separation methods, upstream mass spectroscopy for the identification and study of particular organic substances. The electrochemically generated ions substances entering the electrochemical cell formed by their oxidation or reduction or electrochemically generated ions from the electrode material and forming adducts with substances contained in the sample matrix are then qualitatively or quantitatively analyzed with a mass spectrometer. The electrochemical activation can be used even for substances that are in the mass spectrometer otherwise undetectable. Thanks to the interchangeable system of the working electrodes the device is applicable in laboratories for serial analysis. Alternatively this cell can be used for specific purposes of basic research, where the easy handling and the possibility of alternative exchange working electrodes (possible to select different electrode e.g. Cu, Ag and Au) allows further modification of the electrochemical system.˙

IPC Classes  ?

• G01N 27/403 - Cells and electrode assemblies
• G01N 27/44 - Measuring deposition or liberation of materials from an electrolyteCoulometry, i.e. measuring coulomb-equivalent of material in an electrolyte using electrolysis to generate a reagent, e.g. for titration
• H01J 49/16 - Ion sourcesIon guns using surface ionisation, e.g. field-, thermionic- or photo-emission
• G01N 30/72 - Mass spectrometers
• G01N 30/06 - Preparation

Abstract

The invention relates to a method of manufacture of microporous zeolites with pentasil structure with controlled distribution of aluminium atoms in an alumino-silicate tetrahedrally coordinated skeleton in "A1 pairs" in (A1-O-(Si-O)n=1,2-A1) sequences localized in a single ring and in different rings in A1-O-(Si-O)n>2-A1 sequences. Different distribution of Al atoms in alumino-silicate skeleton is achieved by hydrothermal synthesis using a suitable combination of sources of silicon and aluminium, utilizing their different reactivity, presence of alkaline metal salts, and the use of silicate or alumino-silicate amorphous nano-dimensioned precursors with controlled reactivity, seeding crystals and different times of ageing of the reaction mixture. Skeleton of zeolites with pentasil structure with a molar ratio of Si : A1 = 8 : 1 to 40 : 1 contains 5 to 85 % aluminium atoms in the form of A1 pairs and 15 to 95 % of aluminium atoms in the form of isolated A1 atoms. ˙

IPC Classes  ?

• C01B 33/00 - SiliconCompounds thereof
• C01B 39/00 - Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolitesTheir preparationAfter-treatment, e.g. ion-exchange or dealumination
• C01B 39/04 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof using at least one organic template directing agent, e.g. an ionic quaternary ammonium compound or an aminated compound
• C01B 39/26 - Mordenite type
• C01B 39/36 - Pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11