铵(胺)盐对氧化铜矿硫化浮选行为的影响  

Impact of Ammonium( Amine) Salts on the Sulfide Flotation Behavior of Oxidised Copper Ores

作　　者：蒋太国 方建军[1] 张铁民[1] 毛莹博[1] 

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《矿产保护与利用》2014年第1期15-20,共6页Conservation and Utilization of Mineral Resources

基　　金：国家自然科学基金项目(编号:51364017)

摘　　要：针对四川会东难处理氧化铜矿,研究了不同铵(胺)盐活化剂对氧化铜矿硫化浮选行为的影响规律。结果表明:乙二胺磷酸盐、硫酸铵、氯化铵、碳酸氢铵、磷酸氢二铵均对氧化铜矿硫化浮选有活化作用;用单一活化剂时最佳的是乙二胺磷酸盐,用组合活化剂时乙二胺磷酸盐和碳酸氢铵组合效果最好,且组合活化剂活化效果优于单一活化剂。当乙二胺磷酸盐和碳酸氢铵以1∶3组合使用,总用量为480 g/t时,闭路试验可获得铜精矿铜品位19.01%,回收率为83.31%的优良指标,与直接硫化浮选相比,精矿铜品位提高了4.05%,回收率提高了12.42%。Using several ammonium （amine） salts as activators, the sulfide flotation behaviors of refractory oxidised copper ores in Huidong have been studied. The results showed that ethylene di- amine phosphate, ammonium sulfate, ammonium chloride, ammonium bicarbonate and diammonium phosphate have significant activation to sulfide flotation of oxidised copper ores. When using single activator, the performance of ethylenediamine phosphates was the best, while using a composite one, the performance of ethylenediamine phosphate and ammonium bicarbonate combination was the best. The activation effect of composite activator was better than that of single. When ethyl- enediamine phosphate and ammonium bicarbonate were combined with ration 1 ： 3 and dosage 480 g/t, a final copper concentrate with grade of 19.01% and recovery of 83.31% were obtained. Compared to the direct sulfide flotation, the concentrate grade was raised by 4.05% and the recovery was increased by 12.42%.

关 键 词：氧化铜矿 铵盐 活化剂 硫化浮选 

分 类 号：TD952.1[矿业工程—选矿] TD923.14