铵(胺)盐对孔雀石硫化浮选行为的影响  

Impact of Ammonium( Amine) Salts on Behavior of Malachite Sulfide Flotation

作　　者：蒋太国 方建军[1,2] 毛莹博[1,2] 李国栋[1,2] 毕克俊 

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]复杂有色金属资源清洁利用国家重点实验室,云南昆明650093

出　　处：《矿产保护与利用》2015年第4期31-37,共7页Conservation and Utilization of Mineral Resources

基　　金：国家自然科学基金项目(51364017)

摘　　要：在容积为50 m L的RK/FGC-50挂槽式浮选机上进行了孔雀石硫化浮选试验,研究了不同铵(胺)盐活化剂对孔雀石硫化浮选行为的影响规律。结果表明:乙二胺磷酸盐、硫酸铵、碳酸氢铵、氯化铵、硝酸铵、氟化铵、碳酸铵均对孔雀石硫化浮选具有活化作用;用单一活化剂时效果最佳的是硫酸铵,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p H=10,乙二胺磷酸盐+碳酸氢铵用量为(1.0×10-5+1.0×10-4)mol/L,硫化钠用量为5×10-4mol/L,异戊基黄药用量为1×10-3mol/L时,孔雀石的回收率为67.67%,与直接硫化浮选法相比,回收率提高了25%。Abtsract:Using several ammonium ( amine ) salt as activators, the sulfide flotation behaviors of malachite were studied in RK/FGC-50 groove type flotation machine.The results showed that eth-ylenediamine phosphate ammonium sulfate ,ammonium bicarbonate,ammonium chloride,ammonium nitrate,ammonium fluoride, ammonium carbonate had activation on sulfide flotation of malachite . When using single activator,the performance of ethylenediamine phosphates was the best,when u-sing 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 the pH=10,ethylenediamine phosphate and ammonium bicarbonate were combined with the molar mass ration of 1:10 and the dosage was 1.1 ×10-4 mol/L,The dosage of sodium sulphide was 5 ×10-4 mol/L and isoamyl xanthate dosage was 1 ×10-3 mol/L,the malachite were gained with the recovery of 67.67%.Compared to the direct sulfide flotation,the recovery was increased by 25%.

关 键 词：孔雀石 铵(胺)盐 活化剂 硫化浮选 

分 类 号：TD952.1[矿业工程—选矿] TD923.14