Controlled copper leach recovery circuit
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United States of America Patent
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Sep 9, 2014
Grant Date -
May 16, 2013
app pub date -
Jan 8, 2013
filing date -
Sep 17, 2007
priority date (Note) -
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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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