Removal of chlorinated hydrocarbons from alkylsilanes

C - Chemistry – Metallurgy – 07 – F

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C07F 7/20 (2006.01) C07F 7/08 (2006.01)

Patent

CA 1332614

REMOVAL OF CHLORINATED HYDROCARBONS FROM ALKYLSILANES ABSTRACT A process for reducing the chlorocarbon content of alkylsilanes is described. The process comprises (A) contacting crude alkylsilanes, containing as a minor portion chlorocarbons and a hydrogen-containing silane with a catalyst; wherein the catalyst is a sufficient amount of an effective Lewis acid forming material; (B) facilitating the reaction of the chlorocarbons with the hydrogen-containing silane in contact with the catalyst to convert the chloro- carbons to a linear or branched alkanes; (C) separating catalyst from the alkylsilanes and alkanes; ant (D) recovering alkylsilanes with lowered chlorocarbon content.

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