processo para a recuperação de nìquel e outros metais de base em lixìvia de pilha auxiliada bacterialmente a partir de minérios de sulfeto ou frações dos mesmos.

摘要

A bacterially assisted heap leach characterized by the steps of: providing an ore heap to oxidize sulphide minerals therein; providing a biological contactor inoculated with ferrous iron oxidizing bacteria; providing at least one leach solution pond to feed solution to, and receive leach solution from both the heaps; and bleeding a portion of the leach solution and passing same to a means for metals recovery.