Kinetics of Indium Leaching from High Indium Sphalerite in Oxygen Pressure Acid Leaching Process

被引：0
|
作者：
Fan Y.-Y. [1 ]
Liu Y. [1 ]
Niu L.-P. [1 ]
Zhang T.-A. [1 ]
机构：
[1] Key Laboratory of Ecological Metallurgy of Multi-metal Intergrown Ores of Ministry of Education, Northeastern University, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2019年 / 40卷 / 09期
关键词：
High indium sphalerite; Indium; Kinetics; Leaching; Oxygen pressure acid leaching;
D O I：
10.12068/j.issn.1005-3026.2019.09.008
中图分类号：
学科分类号：
摘要：
Indium is an important multi-purpose strategic metal and has many potential high-valuable industrial applications. However, there are no independent deposits, often associated with sulfide ore such as lead and zinc. In this work, the indium leaching kinetics of oxygen pressure acid leaching were studied under a traditional electric heating condition. The effects of particle size, temperature, H2SO4 concentration, and oxygen partial pressure on leaching rate of indium were investigated. Indium leaching kinetics was studied using a "liquid-solid phase leaching reaction kinetics model with solid product layer". The results showed that indium leaching process was controlled by interfacial chemical reaction with the apparent activation energy of 69.735 kJ/mol. Moreover, the leaching efficiency of indium increased with the increase of the initial acid concentration, oxygen partial pressure, leaching temperature, and the decrease of particle size. © 2019, Editorial Department of Journal of Northeastern University. All right reserved.
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页码：1257 / 1262
页数：5
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