含金低铜高硫难选铜硫矿石浮选分离工艺研究  

Study on fl otation separation of a refractory gold-bearing high sulfur low copper copper-sulfur ore

作　　者：邱廷省[1] 刘燕波[1] 艾光华[1] 朱华磊[1] 余雄[1] 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000

出　　处：《矿山机械》2014年第1期96-100,共5页Mining & Processing Equipment

基　　金：江西省自然科学基金资助项目(20122BAB216021);江西省科技厅科技支撑计划项目(20121BBG70005)

摘　　要：某含金低铜高硫难选铜硫矿石,含铜仅有0.17%、含硫18%左右,铜硫比低,分离难度较大。通过铜捕收剂和选硫活化剂的优化选择,开展了磨矿细度、选铜捕收剂种类与用量、黄铁矿抑制剂石灰用量、选硫活化剂的种类与用量等条件试验,采用优先浮选工艺流程实现了该铜硫矿石的浮选分离,综合回收了矿石中的铜、硫及伴生金资源。结果表明,通过选铜为一粗二精一扫,选硫为一粗二精二扫的闭路流程,可获得铜品位为21.28%、铜回收率为82.62%的铜精矿,以及硫品位46.12%、硫回收率为90.95%的硫精矿,金在铜精矿中的品位和回收率分别达到13.86 g/t和76.23%的较好选别指标。A gold-bearing low copper high sulfur refractory copper-sulfur ore contained only 0.17% copper and about 18% sulfur, the copper-sulfur ratio was low and separation was difficult. After the optimal selecting of the copper collector and sulfur activator, the paper carried out the conditional experiments for grinding fineness, type and dosage of copper collector, dosage of inhibitor pyrite, type and dosage of sulfur activator, and applied selective flotation process to achieve the flotation of copper-sulfur ore as well as comprehensive recovery of copper, sulfur and associated gold. The results showed after the closed flotation process of one roughing, two cleaning, one scavenging for copper flotation and one roughing, two cleaning, two scavenging for sulfur flotation, the copper concentrate with grade of 21.28% and recovery of 82.62% and the sulfur concentrate with grade of 46.12% and recovery of 90.95% were obtained. Meanwhile, the gold grade and recovery reached 13.86 g/t and 76.23% respectively in the copper concentrate, which showed ideal separation efficiency.

关 键 词：优先浮铜 铜捕收剂LG-03 金回收 硫活化剂L1 +L2 

分 类 号：TD952[矿业工程—选矿]