Process for separately recovering gold and silver from solution by carbon adsorption
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United States of America Patent
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Aug 19, 1986
Grant Date -
N/A
app pub date -
Mar 4, 1985
filing date -
Sep 27, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for separately recovering gold and silver from a solution containing dissolved gold and silver by carbon adsorption which comprises passing the solution sequentially through a series of carbon adsorption stages and passing carbon sequentially through the series countercurrent to the solution to cause gold and silver to be loaded onto the carbon. A portion of the loaded carbon is removed partway along the series, and silver is recovered from the removed portion of the loaded carbon. Loaded carbon is removed from the beginning of the series, and gold is recovered from the carbon removed from the beginning of the series. Carbon from which gold and silver have been removed is returned to the end of the series for re-use.
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