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:
Feb. 12, 2013
Filed:
Jul. 21, 2011
Barbara J. Savage, Silver City, NM (US);
David G. Meadows, Phoenix, AZ (US);
Wayne W. Hazen, Lakewood, CO (US);
Barbara J. Savage, Silver City, NM (US);
David G. Meadows, Phoenix, AZ (US);
Wayne W. Hazen, Lakewood, CO (US);
Freeport-McMoran Corporation, Phoeniz, AZ (US);
Abstract
The present invention relates generally to a process for controlled leaching and sequential recovery of two or more metals from metal-bearing materials. In one exemplary embodiment, recovery of metals from a leached metal-bearing material is controlled and improved by providing a high grade pregnant leach solution ('HGPLS') and a low grade pregnant leach solution ('LGPLS') to a single solution extraction plant comprising at least two solution extractor units, at least two stripping units, and, optionally, at least one wash stage.