Procede de lixiviation de sulfures metalliques au moyen de reactifs possedant des groupes fonctionnels thiocarbonyle

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

Abstract

This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.

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