Controlled copper leach recovery circuit

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal

Reexamination Certificate

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Details

C205S560000, C205S568000, C205S580000, C205S589000, C205S604000, C075S722000

Reexamination Certificate

active

08003064

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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