Mathematical Model of Simultaneous Slag-Metal Reactions in Multi-components System

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著者

    • PINGNAN Wu
    • Department of Metallurgy, University of Science and Technology Bijing

抄録

A mathematical model describing the simultaneous reactions in multi components system, such as hot metal pretreatment in which bulk flow from the bulk to the slag metal interface occurs, is proposed in order to exactly evaluate the mass transfer in the boundary films resulting from diffusion and that from bulk flow, respectively. This model, furthermore, allows accurate estimation of interfacial concentrations and of chemical reactions at interface.<br> The model is applied to the experimental data reported in literatures considering the mass transfer in slag phase, that of in metal phase, and chemical reaction at slag metal interface as the rate controlling steps. The determined kinetic parameters in this model lead to the following conclusions; <br>(1) To describe the decarburization rate, it is necessary to take the retarding phenomena at high interfacial oxygen partial pressure into consideration.<br> (2) The chemical reaction resistance of silicon reaction should be considered.<br> (3) The stirring of the bath by bottom blowing gas tends to accelerate the mass transfer in the metal phase more than that of the slag phase, compared with that by mechanically rotated rod.

収録刊行物

  • ISIJ international

    ISIJ international 37(10), 929-935, 1997-10-15

    The Iron and Steel Institute of Japan

参考文献:  15件中 1-15件 を表示

  • <no title>

    DOI S.

    Tetsu-to-Hagane 72, 1560, 1986

    被引用文献2件

  • <no title>

    ROBERTSON D. G. C.

    Ironmaking Steelmaking 11, 41, 1984

    被引用文献2件

  • <no title>

    PAN W.

    Tetsu-to-Hagane 74, 66, 1988

    被引用文献1件

  • <no title>

    KITAMURA K.

    The 6th Int. Iron and Steel Congr. 3, 50, 1990

    被引用文献1件

  • <no title>

    BIRD R. B.

    Transport Phenomena 571, 1960

    被引用文献1件

  • <no title>

    SASAKI Y.

    Tetsu-to-Hagane 64, 376, 1973

    被引用文献1件

  • <no title>

    MATSUSITA Y.

    Yakinbutsurikagaku 77, 1970

    被引用文献1件

  • <no title>

    ELLIOT J. F.

    Thermochemistry for Steelmaking II, 1963

    被引用文献2件

  • <no title>

    BARIN I.

    Thermochemical Properties of Inorganic Substances, 162,174,491-492, 1973

    被引用文献36件

  • <no title>

    BARIN I.

    Thermochemical properties of inorganic substances., 1977

    被引用文献5件

  • <no title>

    Seikouhannou-no-Suishouheikouchi, 1984

    被引用文献1件

  • <no title>

    SCHENCK H.

    The Chipman Conf., 1965

    被引用文献1件

  • <no title>

    FUKUZAWA A.

    Tetsu-to-Hagane 73, 2145, 1987

    被引用文献1件

  • <no title>

    BAN-YA S.

    Tetsu-to-Hagane 71, 853, 1985

    被引用文献5件

  • Effect of CO Gas Formation on Reduction Rate of Iron Oxide in Molten Slag by Graphite.

    Bafghi Mohammad Sheikhshab , Fukuda Masahiro , Ito Yoshiki , Yamada Shinji , Sano Masamichi

    ISIJ International 33(11), 1125-1130, 1993

    J-STAGE 被引用文献4件

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