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. 17, 2019
Filed:
Jan. 25, 2013
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventors:
Gerhard Arnold, Ringwood, NJ (US);
Terry Brown, New Orleans, LA (US);
Ingo Hamann, Chester, NJ (US);
Alan Hitchiner, Morrinsville, NZ;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/02 (2006.01); B03D 1/002 (2006.01); B03D 1/012 (2006.01); B03D 1/014 (2006.01); B03D 1/004 (2006.01);
U.S. Cl.
CPC ...
B03D 1/02 (2013.01); B03D 1/002 (2013.01); B03D 1/0043 (2013.01); B03D 1/012 (2013.01); B03D 1/014 (2013.01); B03D 2201/007 (2013.01); B03D 2201/02 (2013.01); B03D 2201/04 (2013.01); B03D 2203/02 (2013.01); B03D 2203/025 (2013.01);
Abstract
The present invention is directed to methods that can be used in the enrichment of metal sulfide ores in desired minerals in cases where the ores have sulfide-containing gangues. The method involves adding an oxidant to slurries prepared from the ores during, or immediately prior to froth flotation.