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There are four main processes of gold extraction and also to refractory ores containing arsenic but no copper When the gold contains platinum and
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Gold extraction Wikipedia the free encyclopedia Highgrade gold ore from a quartz vein near Alma Colorado Pressure oxidation is an aqueous process for sulfur
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Critical Reviews in Biotechnology 12 1/2 133 155 1992 Bacterial Oxidation of Refractory Sulfide Ores for Gold Recovery E Borje Lindstrom
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The high copper gold concentrations are treated by the following process sulfating roasting two stage acid leaching on calcines results show that when
The present invention is directed to a precious metal recovery process in which carbonaceous material such as preg robbing carbon is floated after sulfide oxidation
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Part Two Iron Ore Copper Gold By Paula Wallace Copper and Gold Technologies Hydrometallurgical processing has become a significant technology in the