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Dissolution of Pb from the Complex Sulphide Concentrates Containing Galena and Arsenopyrite by Alkaline Oxidative Leaching  

Youn, Ki-Byoung (Department of Materials Science & Engineering, Incheon University)
Publication Information
Resources Recycling / v.17, no.3, 2008 , pp. 42-47 More about this Journal
Abstract
In this work, the dissolution behavior of Pb from the complex sulphide concentrates containing Galena and Arsenopyrite by alkaline oxidative leaching was studied. The influences of leaching temperature, oxygen partial pressure, leaching time and NaOH concentration of leaching solution were examined at the leaching conditions in the range of $100^{\circ}C{\sim}140^{\circ}C$ temperature, $40psi{\sim}100psi\;PO_2$ and $0.5M{\sim}2M$ NaOH concentration. The optimum result was obtained at the leaching condition of leaching temperature $120^{\circ}C$, 100psi $PO_2$, leaching time 30min. and 2M NaOH concentration of leaching solution.
Keywords
Oxidation; Galena; Arsenopyrite; Alkali leaching;
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