Method for preparing dimethyldichlorosilane and methyltrichlorosilane from an azeotropic mixture comprising trimethylchlorosilane and silicon tetrachloride

摘要

The present invention relates to a process for the preparation of dimethyldichlorosilane and methyltrichlorosilane from an azeotropic mixture comprising trimethylchlorosilane and silicon tetrachloride, and more particularly to a process for the production of methyldichlorosilane and methyltrichlorosilane in a methylchlorosilane (MCS) And a method for producing dimethyldichlorosilane and methyltrichlorosilane, which are useful silicon monomers, with high selectivity from an azeotropic mixture comprising trimethylchlorosilane and silicon tetrachloride which are similar in boiling point and are not separated in the distillation column.