The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
Sep. 26, 2001
Rhodia Chimie, Courbevoie Cedex, FR;
Abstract
The invention concerns the upgrading of a by-product of direct synthesis, namely MeSiCl , by vapor phase catalytic hydrogenation of said by-product to obtain MeHSiCl with greater added value. The invention concerns a method for preparing MeHSiCl by catalytic hydrogenation of MeSiCl in the presence of a metal catalyst with high selectivity levels in MeHSiCl economically and without having recourse to drastic and industrially unsuitable conditions. The invention uses a catalyst comprising a bimetal ruthenium/tin catalytic agent. Said catalytic agent is obtained by reacting ruthenium chloride and tin chloride in an acid medium. In practice, the catalyst is formed by a silica powder support impregnated by the ruthenium/tin catalytic agent.