2005•Conservation and Utilization of Mineral ResourcesRequires access
Arsenic Removal from High-Arsenic Bearing Pyrite Concentrate
Wenbin Zhang
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Abstract
By means of orthogonal experimental design,the optimum levels and main factors have been found out for arsenic removal from high-arsenic bearing pyrite concentrate.Through selection of the effective depressants for the arsenic-bearing minerals,the arsenic of 0.48% in the pyrite concentrate of 2.003%As can be removed to meet the requirement of sulfuric acid plant by the open flotation circuit of one stage rougher and two stages cleaning.In meanwhile,the copper can be recovered into the pyrite concentrate at a recovery of 43%.