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    • 7. 发明授权
    • Process for preparing alkoxysilanes
    • 制备烷氧基硅烷的方法
    • US06242628B1
    • 2001-06-05
    • US09435468
    • 1999-11-08
    • Frank KropfgansHartwig RaulederReinhold Schork
    • Frank KropfgansHartwig RaulederReinhold Schork
    • C07F718
    • C07F7/188C07F7/045
    • Alkoxysilanes are prepared by a process, comprising: (i) reacting a chlorosilane with an alcohol in a water-free and solvent free phase with removal of the liberated hydrogen chloride; (ii) transferring the resultant product mixture into a liquid phase to be distilled and adding a metal alcoholate to the product mixture in the liquid at a temperature in the range from 10-60° C., and thoroughly mixing the neutralized product mixture, said alcoholate being employed in an equimolar amount or in a stoichiometric excess based on the amount of acidic chloride, and (iii) purifying the treated product mixture by distillation under reduced pressure, thereby preparing alkoxysilanes which are low in acidic chloride or essentially free of acidic chloride.
    • 通过一种方法制备烷氧基硅烷,其包括:(i)在无水溶剂和无溶剂相中使氯硅烷与醇反应,除去所释放的氯化氢;(ii)将所得产物混合物转移到待蒸馏的液相中 并在10-60℃的温度下向液体中的产物混合物中加入金属醇化物,并将中和的产物混合物充分混合,所述醇化物以等摩尔量或以化学计量过量使用,基于 酸性氯化物的量,(iii)通过减压蒸馏纯化处理过的产物混合物,从而制备酸性氯酸盐或基本上不含酸性氯化物的烷氧基硅烷。