高硅氧化锌矿浸出工艺的研究  

Research on Leaching Process of High Silica Zinc Oxide Ore

作　　者：徐斌[1,2] 杨俊奎[1] 钟宏[3] 姜涛[2] 

机构地区：[1]四川鑫源矿业有限责任公司,四川成都610000 [2]中南大学资源加工与生物学院,湖南长沙410083 [3]中南大学化学化工学院,湖南长沙410083

出　　处：《昆明理工大学学报（理工版）》2010年第5期10-14,共5页Journal of Kunming University of Science and Technology(Natural Science Edition)

基　　金：国家十一五科技支撑资助项目(项目编号:2007BAB22B01)

摘　　要：针对高硅氧化锌矿的处理进行了研究,提出了二段循环酸浸的湿法冶金工艺.通过条件优化实验确定一、二段浸出条件分别为:始酸浓度75g/L、温度70℃、液固比6∶1、浸出时间1.5 h;始酸浓度18g/L、温度60℃、液固比3∶1、浸出时间0.5 h.本试验采用一段六轮循环浸出及二段三轮循环浸出,运行稳定,锌的总浸出率达到93.4%.To deal with high silica zinc oxide ore,a hydrometallurgical process of two-stage circulating acid leaching is put forward.The leaching conditions of the first and the second stage leaching are optimized in this paper.The optimized conditions for the first stage are： acid concentration at 75g/L,temperature at 70℃,liquid to solid ratio at 6/1,and leaching time for 1.5h.The optimized conditions for the second stage are： acid concentration at 18g/L,temperature at 60℃,liquid to solid ratio at 3/1,and leaching time for 0.5h.The results of experiment show that the recovery of zinc can reach 93.4% after the first stage 6 times circulating leaching and the second stage 3 times circulating leaching.

关 键 词：高硅氧化锌矿 两段循环酸浸 中和絮凝 

分 类 号：TF111.31[冶金工程—冶金物理化学]