A Coupling Dynamic Model for Interfacial Reaction between Slag and Metal of Stainless Steelmaking by Chromium Ore Smelting Reduction in a Converter

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Abstract:

For describing and resolving the process of chromium ore smelting reduction preferably, the coupling dynamic model was established using metallurgical thermodynamics, dynamics and reaction engineering. The different influencing factors were investigated and discussed. The results of the model show that the mass transfer of Cr2O3 in the slag phase is rate-determining step. The initial hot metal should contain definite chrome metal and the yield of chromium in slag should be controlled properly at 1560°C so as to decrease refining time considerably and improve production efficiency for producing stainless steel crude melts in a converter. A reference and basis for the constitution of rational processing route in a practical converter steelmaking have been afforded.

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706-709

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June 2010

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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[1] O. Soykan, R.H. Eric and R.P. King: Metall. Trans. B Vol. 22B (1991), pp.53-63.

Google Scholar

[2] C. Vercruyssen, P. Wollants and J.R. Roos: Ironmaking Steelmaking Vol. 21 (1994), pp.287-296.

Google Scholar

[3] M. Kawakami, Y. Kitajima and K. Hashimoto: Tran. ISIJ Vol. 27 (1987), pp.176-184.

Google Scholar

[4] J.X. Chen: Diagram and Data Manual in Steelmaking (Metallurgy Industry Publications, Beijing 1984).

Google Scholar

[5] Y.J. Liang, Y.C. Chen: Thermodynamic Data Manual of Inorganic Matters (Northeastern University Publications, Shenyang 1993).

Google Scholar

[6] S. Ohguchi, D.G. C Robertson: Ironmaking Steelmaking Vol. 11 (1984), pp.262-273.

Google Scholar

[7] S. Kitamura, T. Kitamura: ISIJ Int. Vol. 31 (1991), pp.1322-1328.

Google Scholar

[8] D.G.C. Robertson, B. Deo and S. Ohguchi: Ironmaking Steelmaking Vol. 11 (1984), p: 41-55.

Google Scholar

[9] Y. Qu: Principle of Steelmaking (Metallurgy Industry Publications, Beijing 1980).

Google Scholar

[10] Y.P. Xiao: Fundamental research of smelting reduction (Northeastern University, Shenyang 1988).

Google Scholar