Patent ID: 9023297
Filing Date: 2015-05-05
Classification: B01D,C01B,Y02P

Abstract:
1. A plant for preparing monosilane (SiH 4 ) by catalytic disproportionation of trichlorosilane (SiHCl 3 ) comprising: a reaction column having a feed line for trichlorosilane and a discharge line for silicon tetrachloride (SiCl at least one condenser via which monosilane produced can be discharged from the reaction column, wherein the reaction column has at least two reactive/distillative reaction regions operated at different temperatures and containing different catalytically active solids, at least one of the reaction regions containing a catalytically active solid based on vinylpyridine, at least one of the reaction regions containing a catalytically active solid based on styrene, the reaction column is aligned vertically so that the reaction regions operated at different temperatures are arranged one above the other, and the at least one reaction region containing the catalytically active solid based on vinylpyridine is arranged below the at least one reaction region containing the catalytically active solid based on styrene.