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:
Sep. 16, 1997
Filed:
Jul. 26, 1996
Applicant:
Inventors:
Rainer Bellinghausen, Koln, DE;
Heinrich Helker, Krefeld, DE;
Paul Strehlow, Leverkusen, DE;
Hans-Heinrich Moretto, Leverkusen, DE;
Bernhard Spreckelmeyer, Leverkusen, DE;
Norbert Lonhoff, Leverkusen, DE;
Michael Batz, Leichlingen, DE;
Rainer Weber, Odenthal, DE;
Hans Rinkes, Koln, DE;
Hans-Dieter Block, Leverkusen, DE;
Uwe Arndt, Zarate/Buenos Aires, AR;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423 61 ; 423596 ;
Abstract
A method for the decomposition of chromium ore in a directly heated revolving tube is described, in which oxygen-containing gases are introduced into the revolving tube by means of below-bed nozzles.