Synthesis of Iron Carbide by Reaction of Iron Ores with H_2-CO Gas Mixtures Bearing Traces of Sulfur

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著者

    • HAYASHI Shoji
    • Department of Materials Science and Engineering, Nagoya Institute of Technology
    • IGUCHI Yoshiaki
    • Department of Materials Science and Engineering, Nagoya Institute of Technology

抄録

Particles of hematite ores in a porcelain boat were reduced and carburized at 823∼1223K by H<sub>2</sub>-CO mixtures under low sulfur pressures where metallic iron remained stable.Within major of these various conditions nearly one hour reaction could convert their particles completely to iron carbides such as mostly Fe<sub>3</sub>C. It was found that traces of gaseous sulfur makes iron carbides enough stable rather than free carbon or metallic iron. Their conversion yields were insensitive to inlet H<sub>2</sub>/CO mole ratio and ore type. Total sulfur contents in products obtained for lower sulfur pressures were as low as conventional reduced irons.

収録刊行物

  • ISIJ international

    ISIJ international 37(1), 16-20, 1997-01-15

    The Iron and Steel Institute of Japan

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