System and method for controlling frothing during atmospheric leaching of metal sulphides using silicates

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United States of America Patent

PATENT NO 10000389
SERIAL NO

15504882

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of controlling frothing during atmospheric or substantially atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the steps of (a) producing a metal sulfide concentrate via flotation; (b) producing a tailings stream via flotation; and, (c) diverting a portion or all of said produced tailings stream to an atmospheric or substantially atmospheric sulfide leach circuit. A metal recovery flowsheet is also disclosed. In some embodiments, the metal recovery flowsheet may comprise a unit operation comprising: (a) a sulfide concentrator comprising a flotation circuit, the flotation circuit producing a metal sulfide concentrate stream, and a tailings stream; and, (b) an atmospheric or substantially atmospheric metal sulfide leach circuit. The sulfide concentrator may be operatively connected to the atmospheric or substantially atmospheric metal sulfide leach circuit via both of said metal sulfide concentrate stream, and said tailings stream.

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Patent Owner(s)

Patent OwnerAddress
FLSMIDTH A/S2500 VALBY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baczek, Frank Salt Lake City, US 7 4
Chaiko, David J South Jordan, US 32 251
Eyzaguirre, Carlos Draper, US 6 6
Rocks, Sarah (Sally) Sandy, US 2 1
Roy, Gary Salt Lake City, US 4 5
Walters, Tom Murray, US 6 190

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