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La presente invención se refiere a un proceso para extracción de un metal proveniente de una mena o concentrado que comprende someter la mena o concentrado a oxidación por presión en presencia de oxígeno y una solución ácida conteniendo iones de halógeno y una fuente de iones de bisulfato o sulfato, tales como H2S04. Los metales que pueden ser extraidos mediante el proceso comprenden cobre asi como metales no cuprosos tales como zinc y metales preciosos, tales como oro y plata.The present invention relates to a process for extracting a metal from an ore or concentrate comprising subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic solution containing halogen ions and a source of bisulfate ions or sulfate, such as H2S04. The metals that can be mined by the process include copper as well as non-cuprous metals such as zinc and precious metals such as gold and silver.
ECSP9516261995-12-201995-12-20
HYDROMETALLURGICAL METAL EXTRACTION WITH AID FOR CHLORIDE
ECSP951626A
(en)