从铜阳极泥浮选尾矿中高效浸出金、银试验研究  

High Efficiency Leaching of Gold and Silver from Flotation Tailings of Copper Anode Slime

作　　者：高宇 和晓才[3] 韩庆 施辉献 徐庆鑫[3] GAO Yu;HE Xiaocai;HAN Qing;SHI Huixian;XU Qingxin(School of Metallurgy,Northeast University,Shenyang 110819,China;Key Laboratory for Recycling of Nonferrous Metal Resource,Northeast University,Shenyang 110819,China;Kunming Metallurgical Research Institute,Kunming 650503,China)

机构地区：[1]东北大学冶金学院,辽宁沈阳110819 [2]东北大学有色金属资源循环利用沈阳市重点实验室,辽宁沈阳110819 [3]昆明冶金研究院有限公司,云南昆明650503

出　　处：《湿法冶金》2023年第4期335-340,共6页Hydrometallurgy of China

摘　　要：研究了采用新型环保贵金属浸出剂LY-1,从铜阳极泥浮选尾矿中浸出Au、Ag。考察了浸出时间、浸出温度、液固体积质量比、溶液pH、浸出剂LY-1质量浓度对Au、Ag浸出率的影响。结果表明:在浸出时间3 h、浸出温度60℃、液固体积质量比4/1、溶液pH=10、浸出剂LY-1质量浓度45 g/L条件下,Au、Ag浸出率分别可达96%和99%;Au、Ag的浸出动力学符合未反应收缩核模型,受扩散与化学反应混合控制,Au、Ag浸出反应的表观活化能分别为4.056、4.721 kJ/mol。The leaching of Au and Ag from flotation tailings of copper anode slime was studied using a new environmental protection precious metal leaching agent LY-1.The effects of leaching time,leaching temperature,liquid volume-solid mass ratio,solution pH of solution and mass concentration of leaching agent LY-1 on the leaching rate of Au and Ag were investigated.The results show that under the conditons of leaching time of 3 h,leaching temperature of 60℃,liquid volume-solid mass ratio of 4/1,solution pH=10 and LY-1 mass concentration of 45 g/L,the leaching rates of Au and Ag can reach 96%and 99%,respectively.The leaching kinetics of Au and Ag are consistent with the unreacted shrinking core model and are controlled by diffusion and chemical reactions.The apparent activation energies of Au and Ag are 4.056 kJ/mol and 4.721 kJ/mol,respectively.

关 键 词：铜阳极泥 浮选尾矿 金 银 浸出 动力学 

分 类 号：TF803.21[冶金工程—有色金属冶金] TF831TF832