Leaching of the antimony and accompanying of elements Sb2S3 in the alkaline medium

Leaching of the antimony and accompanying of elements Sb2S3 in the alkaline medium

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This paper presents results of the laboratory investigation of alkaline leaching of stibnite that is an important mineral occuring in the antimony-bearing raw materials.The following components were present in stibnite: Sb2S3, SiO2, ZnS, FeS2.The aim of this study was to establish the effect of composition of the sensationnel kiyari aqueous alkaline leaching medium (1 % NaOH, 1 % NaOH + 1 % Na2S2O3, 1 % NaOH + 1 % Na2S) on the recoveries of Sb, Fe, Pb, Zn, Cu, Ni and Hg.

The antimony recoveries in the leaching solutions NaOH and NaOH + Na2S2O3 solutions houston texans shorts were lower in comparison with the leaching in NaOH + Na2S.The Fe, Pb, Zn recoveries in alkaline solutions were found to decrease in the following order: Fe, Pb, Zn.The mercury recovery in the leaching test with the solution containing 1 % NaOH+1 % Na2S was 3,7 %.