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. 25, 2012
Filed:
Jan. 16, 2009
Applicants:
John O. Marsden, Paradise Valley, AZ (US);
James D. Gillaspie, Gilbert, AZ (US);
John C. Wilmot, Anthem, AZ (US);
Inventors:
John O. Marsden, Paradise Valley, AZ (US);
James D. Gillaspie, Gilbert, AZ (US);
John C. Wilmot, Anthem, AZ (US);
Assignee:
Freeport-McMoran Corporation, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C 1/12 (2006.01); C25C 1/00 (2006.01); C25C 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates, generally, to a method and apparatus for recovering metal values from a metal-bearing materials, and more specifically, a process for recovering copper and other metals through leaching, electrowinning using the ferrous/ferric anode reaction, and the synergistic addition of ferrous iron to the leach step.