Kinetics of Oxidation Reaction for Magnetite Pellets
查看参考文献13篇
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文摘
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An experiment for the oxidation process of single magnetite pellet and theoretical analysis based on modified unreacted core shrinking (MUCS) model were carried out, and the controlling mechanisms of the initial and developing reactions were examined, respectively. From the study of the initial reaction, it was found that the chemical reaction of surface is the controlling step of the overall reaction when the temperature is up to about 750 K, while the mass transfer through the gaseous boundary layer dominates the reaction rate when the temperature is above 750 K. As the reaction developing within the pellet, the mass transfer through the produced layer becomes the controlling step. In addition, the effects of reaction conditions (such as oxygen concentration, temperature) on the fractional oxidation of magnetite pellet were determined. |
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来源
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Journal of Iron and Steel Research
, International,2013,20(9):16-20 【核心库】
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DOI
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10.1016/s1006-706x(13)60150-8
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关键词
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magnetite pellet
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shaft furnace
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kinetics
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oxidation reaction
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controlling step
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地址
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1.
Northeastern University, Key Laboratory of National Education Ministry for Electromagnetic Process of Materials, Liaoning, Shenyang, 110004
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Research Institute, Northeastern University, Liaoning, Shenyang, 110004
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1006-706X |
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学科
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冶金工业 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:4941339
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