Activation System and Method for improving Recovery of metals in the Atmospheric leaching of metal sulphides

摘要

A method is described to improve the Kinetics of leaching and Recovery during the Atmospheric leaching of metal or a substantially Atmospheric metal sulfide.In some embodiments, the method may include the step of processing a metal sulfide concentrate in a Reductive Activation Circuit 220 operates in a First redox potential, to produce a Concentrate of metallic sulfide activated narrowly.The Method can also include the step of processing the Metallic Sulphide concentrate in an activated oxidative leaching Circuit 240 to extract valuable Metals. In some embodiments described, the steps of Activation and / or oxidative Reductive Dissolution processing may employ a Mechano Chemical and / or physical - Chemical particles or agglomerates of the same.The Reductive Activation can be performed prior to operations of Bio Heap Leaching or leaching to improve extraction of metal. Also described are Systems for practicing the above Methods