Method of heap or dump leaching of copper from copper...

Details Method of heap or dump leaching of copper from copper... Method of heap or dump leaching of copper from copper...

C - Chemistry, Metallurgy

22

B

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

Patent

CA 2686591

The object of the present invention is to provide a method of efficiently leaching copper not only from a readily-soluble copper ore but also a poorly-soluble copper sulfide ore partially containing or consisting of chalcopyrite and/or covellite by means of ore heap leaching under versatile conditions for actual operation. This invention relates to a method of leaching copper from a copper sulfide ore, comprising leaching copper from an ore comprising a copper sulfide ore by heap or dump leaching with the use of a sulfuric acid solution containing ferric (III) ions and iodide ions at a total iodine concentration of 8 to 100 mg/L as a leaching solution.

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