氰化尾渣提金选矿试验研究  

Flotation Technology for Gold Reclaiming from Cyanide Tailings

作　　者：张博[1] 张雁生[1] 张家明[1] 李腾飞[1] 覃文庆[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《矿冶工程》2017年第6期60-62,共3页Mining and Metallurgical Engineering

摘　　要：针对某含金3.45 g/t的氰化尾渣开展了提金选矿试验研究。结果表明,以水玻璃为脉石抑制剂和矿浆分散剂,硫酸为pH调整剂,硫酸铜和硫酸铵为载金矿物活化剂,丁钠黄药和25#黑药为组合捕收剂,经一粗一扫二精闭路浮选,可得到金品位15.76 g/t、金回收率60.44%的金精矿。Mineral processing experiments were conducted to reclaim gold from cyanide tailings with gold grade of 3.45 g/t. Using sodium silicate as gangue depressant and pulp dispersant,H2SO4 as pH regulator,CuSO4 and（NH4）2SO4 as activators for gold-bearing minerals,C4H9 OCSSNa and（C7H7O）2 PSSH as a combined collector,a closed-circuit flotation test by adopting a flowsheet consisting of one stage of roughing,one stage of scavenging and two stages of cleaning resulted in a gold concentrate approaching 15.76 g/t Au at 60.44% recovery.

关 键 词：氰化尾渣 提金 金精矿 浮选 组合活化剂 组合捕收剂 

分 类 号：TD923[矿业工程—选矿]