Alkaline and acid pressure oxidation of precious metal-containing materials

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United States of America Patent

PATENT NO 9534273
APP PUB NO 20140096649A1
SERIAL NO

14103385

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Abstract

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The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, with the discharge slurries from the pressure oxidation processes being combined to reduce neutralization requirements prior to precious metal recovery.

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Patent Owner(s)

Patent OwnerAddress
BARRICK GOLD CORPORATION161 BAY STREET SUITE 3700 TORONTO M5J 2S1

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chung-Yeh, Tsu Wilson Elko, US 2 11
Langhans,, Jr John William Spring Creek, US 3 20

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