METHOD AND APPARATUS FOR ELECTROWINNING COPPER USING AN ATMOSPHERIC LEACH WITH FERROUS/FERRIC ANODE REACTION ELECTROWINNING
The present invention relates, generally, to a method and apparatus for recovering metal values from a metal-bearing materials, and more specifically, a process for recovering copper and other metals through leaching, electrowinning using the ferrous/ferric anode reaction, and the synergistic addition of ferrous iron to the leach step.