摘要
新疆某低品位黄铁矿型金矿石中,脉石矿物蚀变严重,矿泥含量较高,对载金矿物的上浮影响较大。通过强化对矿泥的分散和脉石矿物的抑制,以及对载金矿物的活化和捕收研究,确定了碳酸钠+水玻璃作调整剂、硫酸铜作活化剂、异戊基黄药+丁铵黑药作组合捕收剂、RB-3作起泡剂的药剂制度,采用现场2粗2精3扫流程处理金、银品位分别为1.49 g/t和6.11 g/t的试样,可获得金品位为20.07 g/t、金回收率为67.49%、银品位为42.45 g/t、银回收率为34.81%的金精矿。
Due to serious alteration of gangue mineral in a low-grade pyritic gold in Xinjiang province, and the high content of gangue slime has strong impacts on the flotability of gold-carrier mineral. This problem could be properly solved by adopting methods as strengthening the dispersion of the slime and inhibition on gangue, and reinforcing the activation and collection on gold-carrier mineral. By using sodium carbonate and soluble glass as the combined modifier, copper sulfate as activator,isoamyl-xanthate and dithiophosphate BA as the combined collector, the RB-3 as frother, a closed-circuit flotation flowsheet consisting of two roughings, two concentratings and three seavengings has been performed. The original grades of gold and silver are 1.49 g/t and 6.11 g/t separately for the run-of-mine ore, the grade and recovery of gold in the concentrate of closed-circuit test have attained 20.07 g/t and 67.49% ,while the grade and recovery of silver have reached 42.45 g/t and 34.81%.
出处
《金属矿山》
CAS
北大核心
2013年第5期78-81,91,共5页
Metal Mine
