摘要
对于含金银铜铅的浮选精矿，为综合回收其中的这些金属，经过多种湿法方案的对比，以氨浸脱钢－酸溶解脱铅－氰化提金工艺为优，金、银、铜、铅的回收率分别可达95％，85％，90％及98％．该工艺氧化氨浸脱铜在80℃及80kPa下操作，工艺简单，金属综合口收率高，易于工程实施，主要试剂（氨、二氧化碳及硝酸）可循环使用，对环境污染小，是一种清洁的生产工艺．
A clean process of recovering gold, silver, copper and lead from complexconcentrates is studied. This Process consists of three sections: (1) oxidation leaching of Cuin ammonia solution, (2) leaching Pb with nitric acid and (3) leaching Au, Ag with cyanide.The recovery rates of gold, silver, copper and lead are 95%, 85%, 90% and 98% respectively.Oxidation leaching of Cu in ammonia solution is operated at 80℃ and 80 kpa, with theadvantage of simple technology and easy application to industrial processing. Ammonia, carbonbioxide and nitric acid can be recycled into the process.
出处
《化工冶金》
CSCD
北大核心
1999年第4期415-419,共5页
