| The recovery rate of antimony-bearing gold ore in a domestic plant is low. In order to address this problem, experimental studies were carried out to investigate the mineral processing including the flotation grinding fineness, the types and amounts of flotation reagents, collectors, inhibitors, and activators. Their effect of on the flotation recovery was analyzed. The results show that the recovery rate of antimony and gold reached 77.33% and 59.16%, respectively, after the closed-circuit flotation process of one rough four sweeps and three refinements when the grinding fineness was -0.045 mm which accounted for 93.52%, the dosage of inhibitor sodium pyrosulfite+new agent GT-1 was (200+200) g/t. Other mineral processing conditions were as follows: 400 g/t lead nitrate activator, 500 g/t sodium butyl xanthate collector, 200 g/t ethyl sulfide, 400 g/t new agent GT-2 and 30 g/t foaming agent 2# oil. Combined with the original closed-circuit method, this mineral processing technique greatly improves the recovery rate of antimony and gold. |
