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. 02, 2007
Filed:
Apr. 01, 2003
Applicants:
Rainer Weber, Odenthal, DE;
Hans-dieter Block, Leverkusen, DE;
Michael Batz, Leichlingen, DE;
Jost Halstenberg, Köln, DE;
Michael Lumm, Köln, DE;
Roland-luiz Roth, de Buenos Aires, AR;
Dawie Van Der Merre, Newcastle, ZA;
Inventors:
Rainer Weber, Odenthal, DE;
Hans-Dieter Block, Leverkusen, DE;
Michael Batz, Leichlingen, DE;
Jost Halstenberg, Köln, DE;
Michael Lumm, Köln, DE;
Roland-Luiz Roth, de Buenos Aires, AR;
Dawie Van Der Merre, Newcastle, ZA;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 34/00 (2006.01); C01G 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process wherein the vanadium present in the chromium ore chromite is recovered as vanadium pentoxide during the course of the fusion of the chromium ore with alkali and its work-up to produce sodium chromate solution and sodium dichromate.