Process of gold and copper recovery from mixed oxide—sulfide copper ores
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United States of America Patent
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Oct 28, 2014
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Jun 8, 2011
filing date -
Apr 20, 2011
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Abstract
The present invention relates to a process of gold and copper recovery from gold-containing copper ores obtained from mixed oxide-sulfide copper ore bodies by a series of flotation stages. More specifically, the present invention relates to a process of gold and copper recovery whereby gold-containing ores obtained from mixed oxide-sulfide copper ore bodies, and/or copper flotation by-products thereof, are subjected to at least one flotation step following a dewatering step. In particular, it recovers copper and gold from the oxidized zone of porphyry and other mixed ore deposits. Likewise, the present process allows recovery of copper and gold from the tailings and scavenger concentrates which, in conventional process are no longer viable for further treatment.
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