Puvvada, G V K and Murthy, D S R (2000) Selective precious metals leaching from a chalcopyrite concentrate using chloride/hypochlorite media. Hydrometallurgy, 58 (3). pp. 185-191.
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An alternative non-cyanide lixiviant, namely sodium hypochlorite, has been used for the selective extraction of gold and silver from a copper concentrate. Hypochlorite leaching of the as-received, as well as aqueous pressure-oxidized copper concentrate was carried out. Direct hypochlorite leaching yielded gold and silver recoveries of 42.7% and 45.0%, respectively. With aqueous pressure oxidation followed by hypochlorite leaching, it was possible to selectively recover 90.0% of gold and 92.5% of silver from the copper concentrate.
|Uncontrolled Keywords:||Lixiviant; Selective extraction; Hypochlorite leaching|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||INVALID USER|
|Deposited On:||07 Dec 2009 18:08|
|Last Modified:||08 Feb 2012 12:18|
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