公开(公告)号：DE1643926A1

公开(公告)日：1971-07-15

申请号：DE1643926

申请日：1968-02-09

Applicant: DEGUSSA

Inventor： ROTHER WILFRIED DR ,  PFLEGER HANS DR

IPC: B01J19/18 ,  C07F7/14

Abstract: 1,235,981. Alkyltrihalosilanes. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. 29 Jan., 1969 [9 Feb., 1968], No. 4881/69. Heading C3S. Alkyltrihalosilanes are prepared by passing a gaseous olefin and a trihalo hydrogeno silane into a boiling mixture of the alkyltrihalosilane to be prepared and a platinum catalyst at a temperature of 30‹ to 150‹ C. and a pressure not substantially above atmospheric. The reaction may be continuous and an apparatus is described in which the reactants are introduced at the base of a column containing the boiling mixture and the reaction product is removed at the top and unreacted starting materials are recycled. The initial mixture is obtained by refluxing trihalohydrosilane, olefin and catalyst, the delivery of reactants beginning when the temperature approaches the boiling point of the reaction product. The catalyst may be platinum metal or compound, e.g. H 2 PtCl 6 , or those described in Specification 1,158,510. Propyl and butyl trichlorosilanes are prepared in the examples.