C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 7/18 (2006.01) C07F 7/02 (2006.01) C07F 7/04 (2006.01)
Patent
CA 2069522
PREPARATION OF ALKOXYSILANES BY CONTACTING A SOLUTION OF HYDROGEN FLUORIDE IN AN ALCOHOL WITH SILICON ABSTRACT The present invention is a process for preparing alkoxysilanes by the contact of silicon with a solution of hydrogen fluoride in a liquid primary or secondary alcohol. The hydrogen fluoride activates the silicon causing the formation of alkoxysilanes to occur more rapidly and can provide selectivity for the production of dialkoxysilanes and trialkoxysilanes. The process may be run in the presence of copper or a copper compound as a catalyst. The process is advantageously run using atomized silicon.
Nguyen Binh Thanh
Speier John Leopold
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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