CAS: 52350-17-1; Tungsten Oxide Caesium

专利信息

专利号:US-8609576-B2
优先权日:2004-08-04
标题:Catalysts containing tungstate for the synthesis of alkyl mercaptan and method for the production thereof
发明人：REDLINGSHOEFER HUBERT; WECKBECKER CHRISTOPH; HUTHMACHER KLAUS
权利人:REDLINGSHOEFER HUBERT; WECKBECKER CHRISTOPH; HUTHMACHER KLAUS; EVONIK DEGUSSA GMBH
摘要:The invention relates to a catalyst containing alkali tungstate for the synthesis of alkylmercaptanes from alkanols and hydrogen sulphide, in addition to a method for the production of said catalyst, wherein the molar ratio of alkali to tungstan is <2:1.

专利号:US-8022254-B2
优先权日:2004-12-18
标题 :Catalysts comprising halide-containing alkali tungstates for the synthesis of alkylmercaptan, and process for their preparation
发明人：REDLINGSHOEFER HUBERT; WECKBECKER CHRISTOPH; DOERFLEIN ANDREAS
权利人:EVONIK DEGUSSA GMBH
摘要:The invention relates to a halide-containing alkali tungstate catalyst for the synthesis of alkylmercaptans from alkanols and hydrogen sulfide, and to a process for the preparation of this catalyst.

专利号:US-7691776-B2
优先权日:2003-08-23
标题:Catalyst for the synthesis of alkyl mercaptan and process for the production thereof
发明人：REDLINGSHOEFER HUBERT; WECKBECKER CHRISTOPH; DOERFLEIN ANDREAS; RUECKRIEGEL MICHAEL
权利人:EVONIK DEGUSSA GMBH
摘要:The invention relates to an oxidic catalyst containing cesium and tungsten for the synthesis of alkyl mercaptans from alkanols and hydrogen sulfide, and to a process for the production of this catalyst, wherein the molar ratio of cesium to tungsten is <2:1.

专利号:US-5866721-A
优先权日:1996-12-27
标题 :Process for separating the product gas mixture from the catalytic synthesis of methyl mercaptan
发明人：HOFEN WILLI; BOECK WOLFGANG; RAUTENBERG STEPHAN; SAUER JOERG; ARNTZ DIETRICH; GOEDECKE RALF; TAUGNER WOLFGANG; SONNENSCHEIN RAYMUND
权利人:DEGUSSA
摘要:A process for separating the product gas mixture from the catalytic synthesis of methyl mercaptan. Because of improved separation of the product gas mixture into its components, less hydrogen sulfide and methyl mercaptan are lost in discharging the inert gases than in the known process. The inert gases can be burned without after-treatment of the exhaust gas. Likewise, the process water that is discharged is less contaminated with polysulfides.

专利号:US-5852219-A
优先权日:1996-09-26
标题:Catalyst, process for its preparation, and use for synthesis of methyl mercaptan
发明人：SAUER JOERG; BOECK WOLFGANG; VON HIPPEL LUKAS; BURKHARDT WERNER; RAUTENBERG STEPHAN; ARNTZ DIETRICH; HOFEN WILLI
权利人:DEGUSSA
摘要:A catalyst for the synthesis of methyl mercaptan from hydrogen sulfide and methanol, as well as a process for preparing the catalyst. The catalyst contains active aluminum oxide on which 15% to 40% by weight cesium tungstate is deposited as the activator. The activator, cesium tungstate, gives an unexpected increase in activity and selectivity as compared with potassium tungstate, which is used exclusively at the present state of the art.

专利号:US-2010102700-A1
优先权日:2008-10-24
标题:Flame spray pyrolysis with versatile precursors for metal oxide nanoparticle synthesis and applications of submicron inorganic oxide compositions for transparent electrodes
发明人：JAISWAL ABHISHEK; ERNST FRANK O; CHIRUVOLU SHIVKUMAR; LEE JIA X; BUCHEL ROBERT; PRATSINIS SOTIRIS E
权利人:JAISWAL ABHISHEK; ERNST FRANK O; CHIRUVOLU SHIVKUMAR; LEE JIA X; BUCHEL ROBERT; PRATSINIS SOTIRIS E
摘要:Flame spray pyrolysis can be performed using aqueous solvents for the delivery of metal and/or metalloid oxide precursors while obtaining desirably high flame temperatures for the synthesis of uniform submicron inorganic oxide particles. A multiple liquid channel nozzle can be used to deliver liquid for the formation of the aerosol that is combusted in the flame. One or both channels can deliver liquid with metal/metalloid precursors and/or organic fuels. Flame spray pyrolysis can be used to form metal tungsten oxide submicron particles. Metal tungsten oxide compositions can be used in the formation of transparent electrodes. If the transparent electrodes are formed from polymer inorganic particle composites, the composites can further comprise electrically conductive nanoparticles to improve the electrical conductivity.