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:
Apr. 03, 2018
Filed:
May. 30, 2014
Applicant:
Outotec (Finland) Oy, Espoo, FI;
Inventors:
Michael H. Barker, Pori, FI;
Henri K. Virtanen, Pori, FI;
Assignee:
OUTOTEC (FINLAND) OY, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C 1/00 (2006.01); C25C 7/06 (2006.01); C25C 1/12 (2006.01); C25C 1/16 (2006.01); C25C 7/00 (2006.01); C25C 7/02 (2006.01);
U.S. Cl.
CPC ...
C25C 7/06 (2013.01); C25C 1/12 (2013.01); C25C 1/16 (2013.01); C25C 7/00 (2013.01); C25C 7/02 (2013.01);
Abstract
The invention relates to a method for electrowinning a metal from an electrolyte in an electrowinning cell that comprises an electrolysis tank, one or more anodes, and one or more cathodes, which anodes and cathodes are housed in the electrolysis tank. The method comprises supplying sulfur dioxide to the anode to depolarize the anode process and to reduce the energy consumption of the electrowinning cell.