ANODIC PROCESSES FOR ELECTROWINNING OF Sb FROM JAMESONITE CONCENTRATE

摘要

The anode reaction and current density of the electrowinning of Sb from jamesonite concen-trate have been investigate.High anodic current density seems to be the major reason for highenergy consumption,air pollution by alkaline mists in workshop as well as poor quality ofdeposition.A series of steps,such as absorption,phase formation,ageing of passivated filmsetc.,were found to be involved during the anodic passivating process of Fe in NaOH solution.A new anodic material Fe/Ni/Co3O4 was developed so as to save the d.c.electric energyover 160 kWh/t of Sb.