ES2301419B2 - LIXIVIATION PROCESS FOR COPPER …
Method for leaching copper from sulphite-containing concentrates, such as chalcopyrite, which includes using pyrite as a catalyst for ferric reduction in order to eliminate passivation of the surface of calopirite, the process being carried out under conditions in which The pyrite is not oxidized to a suitable level. Leaching is carried out in an acid sulfate medium and may include …