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专利信息
专利号:US-9822053-B2
优先权日:2016-01-28
标题:Single step conversion of N-butyraldehyde to 2-ethylhexanal
发明人:BOPPANA Venkata Bharat; HAMPTON JR KENNETH WAYNE; LIU ZHUFANG; SUMNER JR CHARLES EDWAN; TUSTIN GERALD C; STEINMETZ GUY RALPH; STEFFEY MELISSA PAGE
权利人:EASTMAN CHEM CO
摘要:Disclosed is a method of making and using a titania supported palladium catalyst for the single step synthesis of 2-ethylhexanal from a feed of n-butyraldehyde. This titania supported palladium catalyst demonstrates high n-butyraldehyde conversion but also produces 2-ethylhexanal in an appreciable yield with maintained activity between runs. This method provides a single step synthesis of 2-ethylhexanal from n-butyraldehyde with a catalyst that can be regenerated that provides cleaner downstream separations relative to the traditional caustic route.
专利号:US-6849243-B1
优先权日:1999-03-27
标题:Catalysts for the gas-phase oxidation of ethylene and acetic acid to vinyl acetate, a process for producing them and their use
发明人:HAGEMEYER ALFRED; WERNER HARALD; DINGERDISSEN UWE; KUEHLEIN KLAUS; DAMBECK GUENTER; GEISS GERHARDT; RUTSCH ANDREA; WEIDLICH STEPHAN
权利人:CELANESE CHEM EUROPE GMBH
摘要:The invention relates to a supported catalyst and the production and use thereof in the synthesis of vinyl acetate in the gaseous phase from ethylene, acetic acid and oxygen, or from gases containing oxygen, whereby the activity and selectivity are simultaneously improved. The catalyst contains palladium, at least one alkali metal compound and optionally one or more catalyst accelerators, in particular, gold, barium and/or cadmium on a porous support. Said support contains at least one reducible metal oxide, in particular oxides of the elements of groups IIIb, IVb, Vb, VIb from the periodic table of elements. Once the support has been loaded with at least one palladium compound, a reduction is carried out at a temperature of >200° C.
专利号:US-9272334-B2
优先权日:2011-04-12
标 题:Synthesis of platinum-alloy nanoparticles and supported catalysts including the same
发明人:CARPENTER MICHAEL K
权利人:GM GLOBAL TECH OPERATIONS INC
摘要:Methods of synthesizing platinum-nickel-alloy nanoparticles and supported catalysts comprising the nanoparticles are provided. The methods may comprise forming a reaction mixture in a reaction vessel; heating the reaction mixture sealed in the reaction vessel to a reaction temperature; maintaining the temperature of the reaction vessel for a period of time; cooling the reaction vessel; and removing platinum-alloy nanoparticles from the reaction vessel. The reaction mixture may comprise a platinum precursor, a nickel precursor, a formamide reducing solvent, and optionally a cobalt precursor. In some embodiments the reaction temperature is at or below the boiling point of the formamide reducing solvent, such as from about 120° C. to about 150° C., for example. The platinum-alloy nanoparticles provide favorable electrocatalytic activity when supported on a catalyst support material.
专利号:US-9079164-B2
优先权日:2012-03-26
标题:Single reaction synthesis of texturized catalysts
发明人:WOODFIELD BRIAN F; SMITH STACEY; SELCK DAVID; BARTHOLOMEW CALVIN H; MA XUCHU; XU FEN; OLSEN REBECCA E; ASTLE LYNN
权利人:UNIV BRIGHAM YOUNG
摘要:Methods are described for making a texturized catalyst. The textural promoter may be a high-surface area, high-porosity, stable metal oxide support. The catalyst is manufactured by reacting catalyst precursor materials and support materials in a single, solvent deficient reaction to form a catalyst. The catalyst may be particles or a coating or partial coating of a support surface.
专利号:US-2017246690-A1
优先权日:2014-06-20
标 题:Stabilizing agent-free metal nanoparticle synthesis and uses of metal nanoparticles synthesized therefrom
发明人:MURPHY RYAN J; DREYFUS REMI; HOUGH LAWRENCE ALAN; MALASSIS LUDIVINE; MURRAY CHRISTOPHER; DONNIO BERTRAND
权利人:RHODIA OPERATIONS; CENTRE NAT RECH SCIENT; UNIV PENNSYLVANIA
摘要:Described herein are methods of synthesizing metal nanoparticles and the metal nanoparticles synthesized therefrom. Further described in the present disclosure are methods of modifying the surfaces of metal nanoparticles and the metal nanoparticles modified thereby. Also described herein are uses of such metal nanoparticles.
专利号:CN-101646491-A
优先权日:2007-03-30
标 题 :The method of synthesis of cubic metal nanoparticles in the presence of two kinds of reducing agents