Selective precipitation of metal sulfides

United States of America Patent

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Jan 4, 2011
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Nov 6, 2008
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Oct 30, 2007
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Oct 30, 2006

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Abstract

A method for recovering zinc ions by selective zinc sulfide precipitation from an aqueous solution comprising zinc ions and metal ions of a metal that precipitates as a metal sulfide at a pH lower than a pH at which zinc ions precipitate as a zinc sulfide.

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Patent Owner	Address
BARRICK GOLD CORPORATION	BCE PLACE CANADA TRUST TOWER SUITE 3700 161 BAY STREET TORONTO M5J 2S1

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C01G:COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLAS....

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Inventor Name	Address	# of filed Patents	Total Citations
Choi, Yeonuk	Oakville, CA	18	80
Kondos, Peter	Toronto, CA	5	57
McMullen, Jacques	Oakville, CA	8	79

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Selective precipitation of metal sulfides

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11928229

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PATENT NO	7862786
APP PUB NO	20080274026A1
SERIAL NO	11928229
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
January 04, 2011	US,7862786,B2 US7862786B2	GRANTED PATENT AS SECOND PUBLICATION
November 06, 2008	US,20080274026,A1 US20080274026A1	FIRST PUBLISHED PATENT APPLICATION

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11928229

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