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-8030510-B2 优先权日:2005-06-22 标 题 :Process for the direct synthesis of alkylhalosilanes 发明人:COLIN PASCALE; GARCIA-ESCOMEL CRISTINA; MASTEAU JEAN-CLAUDE 权利人:RHODIA CHIMIE SA 摘要:Process for preparing alkylhalosilanes are provided. The process involve reacting an alkyl halide with a solid body formed of silicon and a catalytic system.
专利号:US-7154005-B2 优先权日:2004-09-09 标 题:Synthesis of alpha fluoroalkyl amines 发明人:O'SHEA PAUL; GOSSELIN FRANCIS 权利人:MERCK FROSST CANADA LTD 摘要:This invention describes the reaction of an alpha fluoroalkyl ketone with a bis(trialkylsilyl)amide to give a stable N-trialkylsilyl imine. Treatment of the N-trialkylsilyl imine with an alcohol leads to solvolysis of the trialkylsilyl group and yields a stable mixture of an aminal and an imine in high yield. Catalytic reduction of this mixture, or of the individual components, in the presence of a chiral catalyst leads to a fluoroalkyl amine with high enantioselectivity and high yield.
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-2017271563-A1 优先权日:2016-03-15 标题 :Method and apparatus for controlled semiconductor growth during synthesis of quantum dot materials 发明人:Durgan Chris; BERTRAM MATTHEW; CARILLO MATTHEW J; ARCHER PAUL 权利人:Durgan Chris; BERTRAM MATTHEW; CARILLO MATTHEW J; ARCHER PAUL 摘要:Techniques and mechanisms for synthesizing quantum dot structures. In an embodiment, a first reaction is performed to dissolve a precursor of a semiconductor material, wherein water is created as a by-product of the first reaction. Some or all of the water is removed and another chemical compound is added, wherein the chemical compound is a primary alcohol or a 1,2-diol. After the addition of the chemical compound, a second reaction is performed to grow at least some nanocrystalline portion of the quantum dot. In another embodiment, the chemical compound is 1,2-hexanediol, 1,2-dodecanediol or 1-octadecanol.
专利号:US-2005283018-A1 优先权日:2002-12-09 标题 :Composite catalysts for the direct synthesis of alkylhalosilanes
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