Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Barbara J. Savage0
Wayne W. Hazen0
David G. Meadows0
Date of Patent
February 12, 2013
0Patent Application Number
133023690
Date Filed
November 22, 2011
0Patent Citations Received
Patent Primary Examiner
Patent 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.
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