氧化铜精矿酸浸渣综合回收银铅试验研究  

Silver and Lead Recovery from Acidic Leaching Residues of Copper Oxide Concentrate

作　　者：叶富兴[1] 李秀娟[1,2] 邹坚坚[1] 王成行[1] 宋宝旭[1,2] 

机构地区：[1]广州有色金属研究院,广东广州510651 [2]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《矿冶工程》2014年第1期28-31,36,共5页Mining and Metallurgical Engineering

基　　金：国家科技支撑计划课题(2012BAB10B07);广东省教育部产学研结合项目(2012B091000164)

摘　　要：针对某氧化铜精矿酸浸浸渣粒度细、泥化严重的特点,采用浮选法综合回收其中的银、铅等有价元素。试验结果表明,采用优先选银再选铅的工艺流程,在碳酸钠、硫化钠和捕收剂GYA-1、GYA-2的药剂制度下,可以得到银品位为3 315.00 g/t的银精矿以及铅品位为33.56%的富银铅精矿(Ag 1 495.00 g/t),银、铅总回收率分别为75.12%和90.37%,有效地回收了银、铅资源。Flotation process was introduced to recover silver and lead elements from acidic leaching residues of a fine- grained copper oxide concentrate with serious argillization. The results show that, adopting a flowsheet of differential flotation of silver-lead and a reagent system containing Na2CO3, Na2S and collectors GYA-1 and GYA-2, a silver concentrate with Ag content of 3 315.00 g/t and a lead concentrates with Pb grade of 33.56% and with Ag content of 1 495.00 g/t are obtained, and the recovery of silver and lead is 75.12% and 90.37%, respectively. With this approach, silver and lead resources can be effectively and comprehensively reclaimed.

关 键 词：氧化铜矿 酸浸渣 优先浮选 综合回收 

分 类 号：TD923[矿业工程—选矿]