Separation of copper minerals from pyrite using air-metabisulfite treatment

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United States of America Patent

PATENT NO 10258996
APP PUB NO 20160199854A1
SERIAL NO

15077718

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to flotation of sulfidic copper-molybdenum- and gold-containing minerals. More specifically, the invention relates to sulfoxy reagent-assisted floatation for separating of sulfides of copper, molybdenum and gold from pyrite, marcasite, pyrrhotite, arsenopyrite, and other gangue minerals following aerating by an oxidizing gas and contacting by a sulfoxy reagent. To promote collection and flotation the feed mineral materials are preferably not contacted with an externally generated non-oxidizing gas to lower the dissolved molecular oxygen content prior to flotation.

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Patent Owner(s)

Patent OwnerAddress
BARRICK GOLD CORPORATIONTORONTO ON M5J 2S1

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gorain, Barun Toronto, CA 4 39

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