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:
Nov. 27, 2001
Filed:
Mar. 21, 2001
Applicant:
Inventors:
Wilfried Kalchauer, Burghausen, DE;
Herbert Straussberger, Mehring/Öd, DE;
Willibald Streckel, Mehring/Öd, DE;
Ulrich Goetze, Burghausen, DE;
Assignee:
Wacker-Chemie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 7/16 ;
U.S. Cl.
CPC ...
C07F 7/16 ;
Abstract
A process for the direct synthesis of organochlorosilanes using CuCl prepared from the copper-containing residues from the direct synthesis of organochlorosilanes, where, in the preparation of the CuCl, in a first step, copper from an aqueous suspension of the copper-containing residues is oxidized to CuCl,using mineral acid and oxidant, where mineral acid or oxidant or mineral acid and oxidant contain chlorine, giving an aqueous CuCl,solution, and in a second step, the aqueous CuCl,solution is reduced to CuCl using elemental iron.