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:
Jan. 26, 1993
Filed:
Jul. 12, 1991
Applicant:
Inventors:
Klaus Ruff, Troisdorf, DE;
Bernhard Falk, Rheinfelden-Minseln, DE;
Detlef Liesching, Troisdorf-Sieglar, DE;
Assignee:
Huls Troisdorf Aktiengesellschaft, Cologne, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; A64D / ;
U.S. Cl.
CPC ...
423659 ; 423488 ; 423336 ; 588226 ; 588248 ;
Abstract
A residue from the production of chlorosilanes from raw silicon is treated with steam and aditionally with nitrogen-oxygen mixtures. The resulting residue has a lower chloride content.