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%.
出处
《矿产保护与利用》
北大核心
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)
关键词
孔雀石
铵(胺)盐
活化剂
硫化浮选
malachite
ammonium(amine) salts
activator
sulfide flotation
