期刊:Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals ISSN:10040609 , 年:2016 . 卷:26 . 期:6   页码:1350-1355

摘要

The kinetics of atmospheric carbothermic reduction of indium oxide slag was investigated. The results indicate that the reduction volatilization ratio of indium increases with the quality ratio of mass ratio of C and slag containing In or the reaction temperature increasing, the highest indium reduction 85.21% was realized under the condition of the mass ratio of C and slag containing In of 0.5 at 1523 K after 60 min. The interface reaction is the controlling step of the overall reduction process and the activation energy is estimated to be 168.67 kJ/mol when the mass ratio of C and slag containing In is 0.5, the average size of slag is 80 μm, the average size of graphite is 30 μm and the reaction temperature is from 1273 to 1523 K. © 2016, Science Press. All right reserved.

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关键词
Atmospheric carbon - Controlling steps - Indium oxide - Interface reactions - Reaction temperature - Reduction process - Thermoreduction - Volatilization ratio

附加关键词:
Activation energy - Enzyme kinetics - Indium - Kinetics

作者信息

通讯作者:
     Ding, Zhi-Ying(zy.ding@csu.edu.cn)
作者机构:
     [1] College of Chemistry and Chemical Engineering, Central South University, Changsha; 410083, China
     [2] Department of Mechanical Engineering, Hunan Institute of Engineering, Xiangtan; 411101, China