Alkaline oxidation methods and systems for recovery of metals from ores

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United States of America

PATENT NO 11993826
SERIAL NO

16412368

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Abstract

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An oxidation step for sulfide and transition ores prior to CN leaching to recover 60 to 90 percent of metals from those ores. Use of tona, soda ash or carbonate source in treating sulfide and transition ores for CN leaching recovery of metals, including gold and silver. The oxidation of sulfide and transition ores in the presence of carbonate. Low moisture content in the heap, to enhance available oxygen, during the oxidation of sulfide and transition ores in the presence of carbonate.

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Patent Owner(s)

  • HYCROFT MINING HOLDING CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Buffington, Randy Elko, US 2 0

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