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http://dx.doi.org/10.9727/jmsk.2018.31.2.67

Application of Sulfate Solvent in Acid Bake-water Leaching System for Valuable Metal Leaching from Sulfide Mineral  

Ko, Chin Surk (Department of Energy and Resource Engineering, Chosun University)
Togtokhmaa, B. (Department of Energy and Resource Engineering, Chosun University)
Park, Cheon-Young (Department of Energy and Resource Engineering, Chosun University)
Publication Information
Journal of the Mineralogical Society of Korea / v.31, no.2, 2018 , pp. 67-73 More about this Journal
Abstract
The objective of this study was to investigate the application of sulfate solvents for the economic and eco-friendly leaching of valuable metals from Au concentrate using an acid bake-water leaching system (AWS). AWS experiments were performed using an electric furnace with various baking temperatures ($100-500^{\circ}C$) and sulfate solvents ($H_2SO_4$, $K_2SO_4$, $(NH_4)_2SO_4$, $MgSO_4$, and $CaSO_4$). The efficiency of the valuable metal leaching increased as the baking temperature was increased to $400^{\circ}C$. Based on the AWS leaching time experiments, the maximum leaching rate occurred with the aqueous $(NH_4)_2SO_4$ solvent. This study demonstrates that aqueous $(NH_4)_2SO_4$ could be used as an effective solvent for valuable metal leaching using an AWS.
Keywords
valuable metal; acid bake; water leaching; sulfate solvents; $(NH_4)_2SO_4$;
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Times Cited By KSCI : 2  (Citation Analysis)
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