مشخصات پژوهش

Extraction of copper from sulfide sources by hydrometallurgical methods is one of the biggest challenges for mining researchers. Copper sulfide concentrates, especially chalcopyrite, are sometimes associated with arsenic minerals such as anarchite and tenantite, especially in deep mineral layers. Since sulfides and arsenic oxides are volatile compounds, an environmentally friendly method is needed to isolate them in order to prevent air pollution with toxic compounds. The aim of this study was to leach Sungun copper sulfide concentrate with the aim of extracting maximum copper from arsenic ores [1-5]. Leaching tests on Sungun copper flotation concentrate under operating conditions of 1 mol/l hydrochloric acid, 0.2 mol/l calcium chlorite and 0.15 mol/l ethylene glycol at 80 °C and 800 rpm stirring conditions done. The results showed that the highest percentage of copper recovery was related to ethylene glycol additive and calcium chlorite additive in 15 minutes, which we saw an increase of 72.23% and 64.85%, respectively, compared to conditions without additive. These results indicate the high potential of calcium chlorite leaching in the extraction of copper from arsenic concentrates.