Process of recovering copper from ore

Details Process of recovering copper from ore Process of recovering copper from ore

C - Chemistry, Metallurgy

22

B

C22B 15/00 (2006.01) C22B 3/08 (2006.01)

Patent

CA 2428310

A copper concentrate obtained by flotation of a high grade copper ore containing chalcopyrite as a main mineral constituent is leached at a temperature of 100°C or higher, and under a pressure greater than atmospheric pressure yielding a copper leachate containing ferric ions of at least 5g/L and sulfuric acid, and this copper leachate is used in heap leaching or vat leaching of a low grade copper ore, whereby a method of recovering copper economically from a material containing copper is provided.

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