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:
Dec. 30, 2014
Filed:
Dec. 17, 2012
Freeport-mcmoran Corporation, Phoenix, AZ (US);
Joanna M. Robertson, Thatcher, AZ (US);
Thomas R. Bolles, Tucson, AZ (US);
Wayne W. Hazen, Lakewood, CO (US);
Lawrence D. May, Westminster, CO (US);
Jay C. Smith, Pearl River, LA (US);
David R. Baughman, Golden, CO (US);
Freeport Minerals Corporation, Phoenix, AZ (US);
Abstract
Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, leaching the roasted metal hearing material in a basic medium to yield a pregnant leach solution, conditioning the pregnant leach solution to thrill a preprocessed metal bearing material; and leaching the preprocessed metal bearing material in acid medium.