A Process Model for the Carbothermic Reduction of MnO from High Carbon Ferromanganese Slag-The Model

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著者

    • SAFARIAN Jafar
    • Department of Material Science and Engineering, Norwegian University of Science and Technology
    • GRONG Oystein
    • Department of Material Science and Engineering, Norwegian University of Science and Technology
    • KOLBEINSEN Leiv
    • Department of Material Science and Engineering, Norwegian University of Science and Technology
    • OLSEN Sverre E.
    • Department of Material Science and Engineering, Norwegian University of Science and Technology

抄録

In the present investigation, novel process modelling techniques have been applied to capture the kinetics of the MnO reduction process. The judicious construction of the constitutive equations makes full use of both dimensionless parameters and calibration methods to eliminate poorly known kinetic constants. The effects of different metallurgical parameters on the reaction kinetics are adequately captured by the model. Moreover, by invoking the concept of an isokinetic reaction, it has been possible to derive solutions where the temperature dependence of the process is uniquely described by the Scheil integral. The model is validated by comparison with experimental data, which following calibration yields an adequate predictive power. The applicability is illustrated in different numerical examples and its relevance will be further documented and explored in another paper.

収録刊行物

  • ISIJ international  

    ISIJ international 46(8), 1120-1129, 2006-08-15 

    The Iron and Steel Institute of Japan

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