兰坪燕子洞含银氧化铜矿常温常压氨浸试验研究  

Ammonia Leaching Study on Lanping Carbonate Containing Silver Oxidised Copper Ores in Yunnan

作　　者：张铁民[1] 方建军[1] 蒋太国 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26-29,共4页Conservation and Utilization of Mineral Resources

基　　金：国家自然科学基金资助(编号:51364017)

摘　　要：针对兰坪燕子洞碳酸盐型含银氧化铜矿石高碱性、高砷、高结合率的特点,进行了常温常压氨浸试验研究。研究表明:常温常压,在氨水浓度1.5 mol/L,碳酸氢铵浓度1.5 mol/L,磨矿细度-0.074 mm占85%,液固比2.5∶1,浸出时间3 h条件下,铜浸出率可达70%。氨浸液经萃取-电积可得到99.95%的电积铜,有效地实现了铜元素的回收利用。The effects of oxidized copper ores which came from Lanping of Yunnan Province were studied using agitation leaching methods in laboratory in order to find out the optimum leaching conditions under normal temperature and pressure. Silver content of the ores was high. The ores belongedto typical carbonate minerals. The optimum conditions obtained were as follows： ammonia concentration 1.5 mol/L, granding fineness about 85% -0. 074 mm, liquid -solid ratio 2.5：1 and leching time 3 h. The leaching rate of this ore could reach 70%.

关 键 词：氧化铜矿 常温常压 氨浸 影响因素 

分 类 号：TD952.1[矿业工程—选矿] TF803.2[冶金工程—有色金属冶金]