Method of leaching arsenic from ore comprising copper
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United States of America Patent
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Oct 19, 2021
Grant Date -
May 7, 2015
app pub date -
Nov 3, 2014
filing date -
Nov 1, 2013
priority date (Note) -
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Abstract
Disclosed herein is a treated ore solid comprising a reduced amount of a contaminant, for example arsenic, compared to the ore solid prior to treatment. Also disclosed are temperature and pressure modifications, parameters, and methods for treating an ore solid by pressure oxidation leaching of enargite concentrates. The disclosed methods and processes may be applied to copper sulfide orebodies and concentrates containing arsenic. In some cases, the disclosed methods and systems extract, remove, or reduce contaminants, for example arsenic, from an ore containing solution at moderately increased temperature, pressure, and oxygen concentration, and in the presence of an acid.
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