THE PULP ELECTROCHEMISTRY OF FLOTATION SEPARATION FOR STIBNITE-ARSENOPYRITE BULK CONCENTRATE

来源期刊：中南大学学报(英文版)1998年第1期

论文作者：Ou Leming Feng Qiming Chen Jin

文章页码：5 - 7

Key words：flotation; stibnite; arsenopyrite; butyl xanthate; pulp electrochemistry

Abstract: In the thermodynamics, for flotation separation of the Sb-As bulk concentrate system there is no potential extent using butyl xanthate as collector. However in the kinetics, there exists 150 mV in reducing potential of butyl dixanthogen on the surface of stibnite and arsenopyrite. In this paper, their reducing kinetic difference of electrochemistry was confirmed by pure mineral flotation under controlled potential, the artificial Sb-As bulk concentrate flotation separation and UV-spectrophotometic analysis. The electrochemical separation of Sb-As bulk concentrate has been carried out. qualified concentrate has been obtained. Sb-concentrate contains Sb 49.44 %, As 0.44 %, Sb-recovery is 87.83 % and As-concentrate contains As 10.96 %, As-recovery is 94.66 %.