Preparation of diorganodichlorosilane
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsAkihito Tsukuno, Hiroyuki Kobayashi, Yukinori Satoh, Hideaki Ozeki, Yoshihiro Shirota, Susumu Ueno
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Abstract
A diorganodichlorosilane is prepared by subjecting organochlorosilanes to disproportionation reaction in the co-presence of a SiH group-containing compound and in the presence of a primary catalyst of AlCl3 or AlBr3 and a co-catalyst of Mg, Al, Ca, Ti, Fe, Ni, Cu, Zn or Sn or a compound thereof. The invention enables disproportionation reaction of organochlorosilanes under atmospheric pressure and at a low temperature at which no substantial sublimation of AlCl3 or the like occurs, thus allowing the reaction equipment to be simple and improving the safety of reaction.
Claims11
A process for preparing a diorganodichlorosilane, comprising the step of subjecting an organochlorosilane to disproportionation reaction in the co-presence of a compound having a hydrogen atom directly bonded to a silicon atom and in the presence of a primary catalyst of AlCl3 or AlBr3 and a co-catalyst selected from the group consisting of Mg, Al, Ca, Ti, Fe, Ni, Cu, Zn and Sn, compounds of these metals excluding AlCl3 and AlBr3, and mixtures thereof.
Dependencies are inferred from the claim text.