Biometallurgical treatment of precious metal ores having refractory carbon content
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United States of America Patent
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Sep 14, 1993
Issued Date -
N/A
app pub date -
Jul 2, 1992
filing date -
Sep 21, 1990
priority date (Note) -
Expired
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Abstract
A method is provided for the recovery of precious metal values, such as gold and silver, from refractory carbonaceous, or carbonaceous-sulfidic ore material. The ore material is inoculated using a specific microbial consortium and then incubated to deactivate the carbonaceous component of the material to prevent binding of the precious metal values to the carbonaceous component. The precious metal is then recovered.
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