Gold recovery from refractory carbonaceous ores by pressure oxidation and thiosulfate leaching
作者： Andrew R. Marchbank , Kenneth G. Thomas , Christopher Fleming , David Dreisinger
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摘要: A process for recovering gold in which an ore slurry of refractory sulfidic and carbonaceous having preg-robbing characteristics due to the presence organic carbon is subjected pressure oxidation autoclave. The oxidized mixed with a thiosulfate salt lixiviant, mixture maintained at pH between 7 8.7 while agitated stirred tank reactor system leach tanks. Gold recovered from gold-bearing leachate by cementation, adsorption on adsorbent, or cyanidation.
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