Method to improve recovery of gold from double refractory gold ores

United States of America Patent

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Sep 11, 2012
Grant Date
Mar 19, 2009
app pub date
Sep 11, 2008
filing date
Sep 17, 2007

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Abstract

The present invention is directed to a precious metal recovery process in which carbonaceous material, such as preg robbing carbon, is floated after sulfide oxidation to separate the carbonaceous material from the precious metal.

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Patent Owner(s)

Patent Owner	Address
BARRICK GOLD CORPORATION	161 BAY STREET SUITE 3700 TORONTO M5J 2S1

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C22B:PRODUCTION OR REFINING OF METALS

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Inventor Name	Address	# of filed Patents	Total Citations
Gorain, Barun	Toronto, CA	4	39
Kondos, Peter	Toronto, CA	5	57

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Method to improve recovery of gold from double refractory gold ores

Number of patents in Portfolio can not be more than 2000

United States of America Patent

12208985

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PATENT NO	8262768
APP PUB NO	20090071295A1
SERIAL NO	12208985
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 11, 2012	US,8262768,B2 US8262768B2	GRANTED PATENT AS SECOND PUBLICATION
March 19, 2009	US,20090071295,A1 US20090071295A1	FIRST PUBLISHED PATENT APPLICATION

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12208985

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