Removal of olefins from organohalosilanes

Details Removal of olefins from organohalosilanes Removal of olefins from organohalosilanes

C - Chemistry, Metallurgy

07

F

6/226, 260/449,

C07F 7/12 (2006.01)

Patent

CA 1328657

REMOVAL OF OLEFINS FROM ORGANOHALOSILANES ABSTRACT A process for purifying alkylhalosilanes to reduce the content of olefinic impurities is described. The process comprises (A) contacting crude alkylhalosilanes, containing as a minor portion the olefinic impurities, with a hydrogen- containing silicon compound and a soluble compound of a Group VIII metal; (B) facilitating reaction of the olefins with the hydrogen-containing silicon compound in contact with the Group VIII metal compound to form linear or branched silalkanes, said silalkanes having the formula, RiimAnSiXp; and (C) separating the alkylhalosilanes from the silalkanes formed in the reaction in (B).

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