公开(公告)号：US5922893A

公开(公告)日：1999-07-13

申请号：US31545

申请日：1998-02-27

申请人： Akihito Tsukuno ,  Yukinori Satoh ,  Masao Maruyama ,  Kesaji Harada ,  Shoichi Tanaka ,  Masaaki Furuya

发明人： Akihito Tsukuno ,  Yukinori Satoh ,  Masao Maruyama ,  Kesaji Harada ,  Shoichi Tanaka ,  Masaaki Furuya

IPC分类号： B01J31/02 ,  C07B61/00 ,  C07F7/12 ,  C07F7/16 ,  C07F7/08

CPC分类号： C07F7/128

摘要： The direct synthesis of methylchlorosilanes to react metallic silicon with methyl chloride in the presence of a copper catalyst yields a high-boiling fraction of methylchlorodisilanes as by-products. The invention provides a method for preparing monosilanes from the high-boiling fraction by reacting it with hydrogen chloride in the presence of an amine or amide catalyst. The reaction is effected under the condition that the amount of iron, aluminum, zinc, tin and compounds thereof present in the reaction system is less than the equimolar amount with respect to the catalyst. This increases the conversion of disilanes into monosilanes.

摘要翻译： 甲基氯硅烷在铜催化剂存在下直接合成甲基氯与甲基氯反应产生高沸点馏分的甲基氯二硅烷作为副产物。 本发明提供了通过在胺或酰胺催化剂的存在下与氯化氢反应从高沸点馏分制备单硅烷的方法。 反应在反应体系中存在的铁，铝，锌，锡及其化合物的量相对于催化剂小于等摩尔量的条件下进行。 这增加了二硅烷转化为单硅烷的转化率。