Leaching of a Mongolian chalcopyrite concentrate
DOI:
https://doi.org/10.5564/mjc.v19i45.1082Keywords:
Chalcopyrite, leaching, sodium hypochloriteAbstract
A Mongolian chalcopyrite flotation concentrate was leached using sodium hypochlorite adjusted to different pH using hydrochloric acid. It was found that using a starting pH of below 5.0 resulted in more efficient leaching. The extent of chalcopyrite leaching was determined by the concentration of sodium hypochlorite with > 40% dissolution being achieved. The residue after leaching was found to consist primarily of unreacted chalcopyrite which would be suitable for further leaching or smelting.
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