CAS: 142-71-2; Copper(Ii) Acetate

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专利信息

专利号:US-8957237-B2
优先权日:2011-12-19
标 题 :Method for the direct synthesis of alkylhalogenosilanes
发明人：ROSIER CÉCILE
权利人:BLUESTAR SILICONES FRANCE; BLUESTAR SILICONES FRANCE
摘要:An improved industrial method for the direct synthesis of alkylhalogenosilanes is described. Specifically, a method is described for preparing alkylhalogenosilanes by reacting, in a fluidized bed reactor, and alkyl halogenide, preferably CH3Cl, with a solid body, which is referred to as a contact body and which includes powdered silicon and a catalytic system including at least one copper catalyst and β1 and β2 promoter activities.

专利号:US-7238638-B2
优先权日:2002-12-09
标 题:Composite copper/tin/alkali metal catalysts for the direct synthesis of alkylhalosilanes
发明人：COLIN PASCALE
权利人:RHODIA CHIMIE SA
摘要:The alkylhalosilanes are directly synthesized while diminishing the formation of coke by reacting an alkyl halide with silicon in the presence of a catalytically effective amount of (α) a copper metal or a copper-based compound catalyst and (β) a catalyst promoter intermixture therefor which comprises an effective minor amount of an additive β1 selected from the group consisting of tin, a tin-based compound and mixture thereof, optionally, an effective minor amount of an additive β2 selected from the group consisting of zinc metal, a zinc-based compound and mixture thereof, an effective minor amount of an additive β3 selected from the group consisting of cesium, potassium and rubidium, and compound and mixture thereof, and, optionally, an effective minor amount of an additive β4 selected from the group consisting of the element phosphorus, a phosphorus-based compound and mixture thereof.

专利号:US-3948895-A
优先权日:1971-09-28
标题 :Synthesis of 3,5-diaminopyrazinoic acid from 3,5-diamino-2,6-dicyanopyrazine and intermediates
发明人：DONALD DENNIS S
权利人:DU PONT
摘要:An improved method for the preparation of 3,5-diaminopyrazinoic acid (which is useful for the manufacture of diuretics) is described. New compounds obtained in the process include 3,5-diamino-2,6-dicarbamoylpyrazine; 3.5-diamino-6-carbamoylpyrazinoic acid and 3,5-diamino-6-carbamoylpyrazine. The latter compounds are also useful as curing agents for epoxy resins.

专利号:US-7202192-B2
优先权日:2002-12-09
标题 :Composite catalysts for the direct synthesis of alkylhalosilanes
发明人：COLIN PASCALE
权利人:RHODIA CHIMIE SA
摘要:The alkylhalosilanes are directly synthesized by reacting an alkyl halide with silicon in the presence of a catalytically effective amount of (α) a copper metal or a copper-based compound catalyst and (β) a catalyst promoter intermixture therefor which comprises an effective minor amount of an additive β1 selected from the group consisting of tin, a tin-based compound and mixture thereof, an effective minor amount of an additive β2 selected from the group consisting of cesium, potassium and rubidium, and compound and mixture thereof, and an effective minor amount of an additive β3 selected from the group consisting of the element phosphorus, a phosphorus-based compound and mixture thereof.

专利号:US-4526990-A
优先权日:1983-06-13
标 题 :Synthesis of γ-vinyl-γ-butyrolactone from acetoxyhexenoic acids
发明人：COLEMAN JAMES P; HALLCHER RICHARD C; ROGERS THOMAS E; MCMACKINS DUDLEY E
权利人:MONSANTO CO
摘要:In the process of preparing acetoxyhexenoic acids from butadiene, acetic acid and acetic anhydride, selectivity is improved by converting the acetoxyhexenoic acids to gamma -vinyl- gamma -butyrolactone before isolation. Copper and platinum are useful catalysts in the conversion.

专利号:US-4081253-A
优先权日:1976-12-10
标 题:Production of purified synthesis gas and carbon monoxide
发明人：MARION CHARLES P
权利人:TEXACO DEVELOPMENT CORP
摘要:A continuous process for simultaneously producing (1) a stream of purified synthesis gas having a controlled mole ratio H2/CO, and (2) a separate stream of CO-rich gas. Methanol may be synthesized from the purified synthesis gas and reacted with CO to produce acetic acid. In the process, raw synthesis gas from a noncatalytic partial-oxidation gas generator is cleaned (if necessary), cooled, and dehumidified. At least a portion of the resulting gas stream is then partially purified by removing H2S and COS if present, and at least a portion of the CO2 in a first gas purification zone. The remainder of the clean dehumidified gas stream if any, by-passes the first gas purification zone. Partially purified gas from the first gas purification zone is introduced into a second gas-purification or separation zone and at least a portion of the remainder if any, by-passes the second gas purification zone. A product stream of CO-rich gas and a separate stream of H2-rich gas is removed from the second gas purification zone. The product stream of purified synthesis gas may then be produced by mixing together at least a portion of said H2-rich gas stream with at least a portion of at least one of the following by-pass gas streams; (a) gas processed in the first gas purification zone that by-passes the second gas purification zone; (b) clean dehumidified gas that by-passes the first gas purification zone.