Process for recovering gold and silver from refractory ores

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Apr 12, 2011
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Mar 19, 2009
app pub date
Sep 11, 2008
filing date
Sep 18, 2007

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Abstract

The present invention is directed to flotation of refractory gold sulfide ores in which the ore is ground, floated, the tailings reground, and refloated to produce gold-bearing concentrates.

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Patent Owner	Address
BARRICK GOLD CORPORATION	TORONTO ON M5J 2S1

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Inventor Name	Address	# of filed Patents	Total Citations
Gorain, Barun	Toronto, CA	4	39
Hillier, Daniel	Oakville, CA	3	27
McMullen, Jacques	Oakville, CA	8	79

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Process for recovering gold and silver from refractory ores

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United States of America Patent

12208968

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PATENT NO	7922788
APP PUB NO	20090074607A1
SERIAL NO	12208968
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 12, 2011	US,7922788,B2 US7922788B2	GRANTED PATENT AS SECOND PUBLICATION
March 19, 2009	US,20090074607,A1 US20090074607A1	FIRST PUBLISHED PATENT APPLICATION

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12208968

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