Jan 14, 2007 The ore is pulverized in a hammer mill, run through a flotation process to separate the useful mineral from the dross, then roasted to produce copper oxide, reduced with carbon, and finally purified electrolytically. The crud that drops to the bottom of the electrolysis tank often contains useful amounts of other materials, such as gold or silver.Free consultation 40 years of industry experience providing one-stop solution
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