2013•Nonferrous Metals Engineering & ResearchRequires access

Copper Extraction and Recovery from Copper Bearing Refractory Gold Concentrate

WU Zai-jiu

Abstract

The extraction technology was used to recover copper from copper bearing refractory gold concentrate and the effect of extractant concentration,ratio of oil phase to aqueous phase(O/A),mixing time and pH value was studied.The optimal process condition was obtained as follows: extractant concentration is 25%,O/A is 2:1,mixing time is 3min and pH value is 1.5～2.Under the best working conditions,the extraction rate of copper is 98.53% by two-stage counter current extraction.

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Key concepts: Copper, Extraction (chemistry), Copper extraction techniques, Bearing (navigation), Mixing (physics), Refractory (planetary science), Chemistry, Metallurgy