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Heap leaching - Wikipedia,Heap leaching is an industrial mining process used to extract precious metals, copper, uranium ... 1.1 Precious metals; 1.2 Copper ores; 1.3 Nickel ores; 1.4 Uranium ores; 1.5 Apparatus. 2 Environmental Concerns ... During the extraction phase, the gold ions form complex ions with the cyanide: Au s 2 CN − aq ...
Gold cyanidation - Wikipedia,Gold cyanidation is a hydrometallurgical technique for extracting gold from low-grade ore by converting the gold to a water-soluble coordination complex. It is the most commonly used leaching process for gold extraction. Production of reagents for mineral processing to recover gold, copper, zinc ... Archived July 21, 2011, at the Wayback Machine; ^ International Mining ...
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