Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing element or inorganic compound except carbon dioxide
Reexamination Certificate
2006-04-04
2006-04-04
Lilling, Herbert J. (Department: 1651)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing element or inorganic compound except carbon dioxide
Reexamination Certificate
active
07022504
ABSTRACT:
A method for the bacterially assisted heap leaching of chalcopyrite includes providing a chalcopyrite containing ore heap to oxidize sulphide minerals therein, the heap containing and/or being inoculated with a sulphide oxidizing bacterial culture that either does not oxidize ferrous to ferric, or is inefficient at doing so. At least a first leach solution pond (or other suitable container) is provided, from which feed solution is fed to the heap, and which receives leach solution from the heap. A portion of the leach solution is bled and passed to metals recovery.
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Bioheap Limited
Lilling Herbert J.
Rothwell, Figg Ernst & Manbeck, PC
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