CAS: 1184-64-1; Cupric Carbonate

专利信息

专利号:US-4279781-A
优先权日:1979-10-09
标 题:Catalyst for the synthesis of methanol
发明人：DIENES EDWARD K; COLEMAN RAY L; HAUSBERGER ARTHUR L
权利人:UNITED CATALYSTS INC
摘要:A methanol synthesis catalyst which comprises a major portion by weight of the oxides of copper and zinc and a minor portion by weight of a thermal stabilizing metal oxide is useful for the synthesis of methanol from the oxides of carbon and hydrogen at relatively low temperatures. The catalyst is characterized in that the ratio of copper oxide to zinc oxide, each expressed as a metal by weight, is in the range of from 2:1 to 3.5:1 and by the intimate association with each other of copper and zinc oxides and with said thermal stabilizing oxide. Further, the catalyst is characterized in that the amount of iron oxides, as an impurity, is less than 150 parts per million.

专利号:US-7495120-B2
优先权日:2001-01-31
标题 :Nanosized copper catalyst precursors for the direct synthesis of trialkoxysilanes
发明人：LEWIS KENRICK M; ENG REGINA NELSON; CROMER SABRINA R; MEREIGH ABELLARD T; O'YOUNG CHI-LIN
权利人:MOMENTIVE PERFORMANCE MAT INC
摘要:The present invention provides a process for using nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and mixtures thereof, as sources of catalytic copper in the Direct Synthesis of trialkoxysilanes of the formula HSi(OR) 3 wherein R is an alkyl group containing from 1 to 6 carbon atoms inclusive. The nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and their mixtures of this invention have average particle sizes that are in the range from about 0.1 to about 600 nanometers, preferably from about 0.1 to about 500 nanometers, and most preferably from about 0.1 to about 100 nanometers. Nanosized sources of catalytic copper afford high dispersion of catalytic sites on silicon and contribute to high reaction rates, high selectivity and high silicon conversion. The nanosized copper catalyst precursors of the invention permit the use of substantially reduced levels of copper compared to conventional practice.

专利号:US-4284582-A
优先权日:1978-04-28
标 题 :Process for the preparation of cyclopropane derivatives, intermediates in the synthesis of pyrethroid insecticides
发明人：KAYE ALBERT E; TUCKER ALAN C
权利人:ICI LTD
摘要:Compounds of formula: wherein both groups X are chlorine, bromine or trifluoromethyl, or one X is chlorine or bromine and the other is trifluoromethyl, and Y is -CN or -COOR in which R is an alkyl group, are obtained by (A) reacting a compound of the formula: wherein X1 is chlorine or bromine, with a compound of the formula: X2C=CH-CH=C(CH3)2 in the presence of metallic copper or at least one copper salt and a base, or (B) reacting a compound of the formula: Y-CH2-CN with a compound of the formula: X2C=CH-CH=C(CH3)2 and chlorine or bromine, in the presence of at least one reducible copper salt and a base, or (C) reacting a compound of formula: X-CH2-CN with a compound of the formula: wherein X1 is chlorine or bromine, in the presence of at least one copper salt. The compounds are intermediates in the synthesis of pyrethroid insecticides.

专利号:US-8513449-B2
优先权日:2001-01-31
标 题:Nanosized copper catalyst precursors for the direct synthesis of trialkoxysilanes
发明人：CROMER SABRINA R; ENG REGINA NELSON; LEWIS KENRICK M; MEREIGH ABELLARD T; O'YOUNG CHI-LIN; YU HUA
权利人:CROMER SABRINA R; ENG REGINA NELSON; LEWIS KENRICK M; MEREIGH ABELLARD T; O'YOUNG CHI-LIN; YU HUA; MOMENTIVE PERFORMANCE MAT INC
摘要:The present invention provides a process for using nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and mixtures thereof, as sources of catalytic copper in the Direct Synthesis of trialkoxysilanes of the formula HSi(OR) 3 wherein R is an alkyl group containing from 1 to 6 carbon atoms inclusive. The nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and their mixtures of this invention have average particle sizes that are in the range from about 0.1 to about 60 nanometers, preferably from about 0.1 to about 30 nanometers, and most preferably from about 0.1 to about 15 nanometers. Nanosized sources of catalytic copper afford high dispersion of catalytic sites on silicon and contribute to high reaction rates, high selectivity and high silicon conversion. The nanosized copper catalyst precursors of the invention permit the use of substantially reduced levels of copper compared to conventional practice.

专利号:US-8420848-B2
优先权日:2009-01-09
标题:Process for the synthesis of beta glycerol phosphate
发明人：KULKARNI YASHWANT
权利人:KULKARNI YASHWANT; SIGMA ALDRICH CO LLC
摘要:The present invention provides methods for the preparation of beta glycerol phosphate and its salts. In particular, the invention provides efficient methods for the synthesis of beta glycerol phosphate of high purity.

专利号:US-4806516-A
优先权日:1986-07-24
标题 :Process for producing fluidized catalyst for synthesis of methanol
发明人：OSUGI MINORU; NAKAMURA TADASI; OBATA YORIKO
权利人:MITSUBISHI GAS CHEMICAL CO
摘要:A process for producing a fluidized catalyst for synthesis of methanol, which comprises molding a composition comprising n (A) 10 to 55% by weight of a mixture composed of water-insoluble copper, zinc and zirconium compounds convertible respectively to copper, zinc and zirconium oxides under calcination conditions, said mixture optionally containing a boron compound, n (B) 45 to 90% by weight of water, and n (C) 0.01 to 1% by weight of ammonia into fine particles, and calcining the fine particles.