Patent ID: 9487406
Filing Date: 2016-11-08
CPC Classification: B01J,C01B,C25B

Claim Text:
1. A system for producing silane in a substantially closed-loop process, the system comprising: a vessel for electrolyzing an alkali or alkaline earth metal halide salt to produce metallic alkali or alkaline earth metal and halogen gas; a halogenation reactor for producing at least one of by reacting silicon with at least one of: a disproportionation system for producing monohalosilane or dihalosilane from at least one of (1) silicon tetrahalide and (2) trihalosilane to produce a halogenated silicon feed gas consisting essentially of halosilanes; a hydride reactor for reacting metallic alkali or alkaline earth metal discharged from the vessel and hydrogen to produce an alkali or alkaline earth metal hydride; and a silane reactor for reacting the halogenated silicon feed gas with the alkali or alkaline earth metal hydride to produce silane and an alkali or alkaline earth metal halide salt.