Process for the production of trialkoxysilanes

Details Process for the production of trialkoxysilanes Process for the production of trialkoxysilanes

C - Chemistry, Metallurgy

07

F

6/220, 260/447.9

C07F 7/02 (2006.01) C07F 7/04 (2006.01)

Patent

CA 1323037

Abstract of the Disclosure This invention is concerned with an improved process for producing trialkoxysilanes comprising (i) an activation step where metallic silicon and a copper catalyst are activated, (ii) a reaction step where an alcohol is contacted with metallic silicon and the copper catalyst to allow it to react with the metallic silicon and (iii) a purification step where reaction product obtained is separated and/or refined, which is characterized in that a halogenide is introduced into the reaction system and/or mixture in one or more of the above steps (i) to (iii). With the introduction of a halogenide, the lowring in the selectivity of trialkoxysilanes can be prevented, and the percentage of metallic silicon reacted can be increased. In addition, the trialkoxy- silanes contained in the reaction product can be stabilized. - 43 -

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