Systems and methods for improved metal recovery using ammonia leaching

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United States of America Patent

PATENT NO 9187803
SERIAL NO

13804009

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Abstract

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Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.

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Patent Owner(s)

Patent OwnerAddress
FREEPORT MINERALS CORPORATION333 NORTH CENTRAL AVENUE PHOENIX AS 85004

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bolles, Thomas R Tucson, US 11 25
Gertenbach, Dennis D Lakewood, US 10 179
Robertson, Joanna M Thatcher, US 39 320

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