METHOD FOR PREPARING ALKOXYSILANES Russian patent published in 2006 - IPC C07F7/04 

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention describes a method for preparing tetraalkoxysilanes. Method involves the interaction of ground silicon with alcohol in the high-boiling solvent medium in the presence of a copper-containing catalyst at enhanced temperature to obtain trialkoxysilane and its the following dehydrocondensation with alcohol in the presence of a catalyst. Products formed in reaction of silicon with alcohol as a vapor-gaseous mixture are fed to dehydrocondensation with alcohol in the presence of calcium oxide or hydroxide as a catalyst. Method provides simplifying process and reducing energy consumption.

EFFECT: improved preparing method.

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