An optimal technological scheme for flotation concentration of gold-copper-arsenic ores of the Taror deposit (Republic of Tajikistan)

This article investigates the effect of material size on efficiency flotation concentration gold-copperarsenic ores Taror deposit (Republic Tajikistan) and studies dependence gold recovery duration process with purpose developing an alternative technological scheme for processing this ore type. According to X-ray phase analysis, samples consist rock-forming minerals by 92%. Ore mineralization is represented sulphide minerals, mainly arsenopyrite, chalcopyrite pyrite, in total amount 8%. Ore-forming elements include iron, sulphur, arsenic copper mass fraction 6.02%, 3.26%, 1.52% 0.82%, respectively. Gold silver are contained 7.35 g/t 20.28 g/t, The oxidation state calculated iron comprises 51.3%. indicator, type can be distinguished as mixed, close primary conducted chemical analysis gold, belongs category refractory ores. Flotation experiments showed that grinding original a 95%–71 microns increases concentrate 10%, compared particle 80%–71 microns. was also studied. To achieve maximum concentrate, main control should taken equal 14 12 minutes, As result experiments, relatively simple solution proposed ore, which includes main, cleaning stages flotation.