Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing single metal
Reexamination Certificate
2007-05-01
2010-06-15
Bos, Steven (Department: 1793)
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Preparing single metal
C423S024000, C205S581000, C205S582000, C205S583000
Reexamination Certificate
active
07736487
ABSTRACT:
The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation. In accordance with one aspect of the process, at least a portion of the residue from the pressure leaching operation is directed to a heap, stockpile or other leaching operation.
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Baughman David R.
Green Christy
Hazen Wayne W.
Marsden John O.
Wilmot John C.
Bos Steven
Freeport-McMoran Corporation
Snell & Wilmer L.L.P.
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