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:
Jun. 15, 2010
Filed:
May. 01, 2007
John O. Marsden, Paradise Valley, AZ (US);
John C. Wilmot, Anthem, AZ (US);
Christy Green, Morenci, AZ (US);
Wayne W. Hazen, Lakewood, CO (US);
David R. Baughman, Golden, CO (US);
John O. Marsden, Paradise Valley, AZ (US);
John C. Wilmot, Anthem, AZ (US);
Christy Green, Morenci, AZ (US);
Wayne W. Hazen, Lakewood, CO (US);
David R. Baughman, Golden, CO (US);
Freeport-McMoran Corporation, Phoenix, AZ (US);
Abstract
The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation. In accordance with one aspect of the process, at least a portion of the residue from the pressure leaching operation is directed to a heap, stockpile or other leaching operation.