Process for extracting gold from gold-bearing ore
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United States of America Patent
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Jul 26, 2011
Grant Date -
May 13, 2010
app pub date -
Mar 5, 2007
filing date -
Mar 3, 2006
priority date (Note) -
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Abstract
A process for extracting gold from a gold-bearing ore. The process includes, first, providing a leaching liquor with thiosulfate anion and ethylenediamine. Next, the leaching liquor is contacted with the gold-bearing ore to form a pregnant leach solution including gold dissolved from the gold-bearing ore. Finally, at least part of the gold in the pregnant leach solution is recovered.
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