Reduction Kinetics of Carbon-Containing Bayan Obo Ore Pellets

机译：含碳巴彦O矿球粒的还原动力学

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In this paper,reduction kinetics of Bayan Obo ore pellets containing carbon was studied by means of thermogravimetry in nitrogen atmosphere at the temperature of950-1100℃.Experimental data resulting from the reduction process was analyzed dynamically by virtue of a particle-modelling kinetic equation.In the experimental conditions,the whole reduction process could be divided into two stages.The reaction rate of reduction process is controlled by the step of gas inner diffusion through the layer of reduction iron product,and the reaction rate constants of the two stages are different.The resultant rate equations for the reduction process were obtained by calculating with Arrhenius formula.Reaction apparent activation energies in the two stages are 112.56KJ · mol-1 and190.11KJ · mol-1 respectively.

机译：本文采用热重法在氮气氛下（950-1100℃）对含碳的Bayan Obo球团矿进行了还原动力学研究。利用颗粒模拟动力学方程对还原过程的实验数据进行了动态分析。在实验条件下，整个还原过程可分为两个阶段。还原过程的反应速率是通过气体内部扩散通过还原铁产物层的步骤来控制的，两个阶段的反应速率常数是不同的通过Arrhenius公式计算得出还原过程的合成速率方程。两个阶段的反应视在活化能分别为112.56KJ·mol-1和190.11KJ·mol-1。

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来源
《The 4th Australia-China-Japan joint symposium on iron and steelmaking》|2012年|159-162|共4页
会议地点 Shenyang(CN)
作者
Zhang Bo; Liu Chengjun; Jiang Maofa;
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作者单位

School of Materials Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China;

School of Materials Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China;

School of Materials Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China;

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原文格式 PDF
正文语种 eng
中图分类钢铁冶炼（黑色金属冶炼）（总论）;
关键词
Bayan Obo ore; carbon-containing pellet; reduction kinetics;

机译：巴彦Obo矿石；含碳颗粒还原动力学;

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Reduction Kinetics of Carbon-Containing Bayan Obo Ore Pellets

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