Reduction equilibria at the final stage of reduction of quaternary calcium ferrite with CO-CO2 gas mixtures

Takayuki Maeda, Yoichi Ono

    研究成果: Contribution to journalArticle査読

    16 被引用数 (Scopus)

    抄録

    Quaternary calcium ferrite was synthesized from chemical reagents of Fe2O3, CaCO3, SiO2, and Al2O3 and reduction equilibria at the final stage of reduction with CO-CO2 gas mixtures were studied. Dicalcium ferrite, which is produced during the reduction of binary calcium ferrite, is not found in the reduction of quaternary calcium ferrite. The reduction stage from dicalcium ferrite to iron and CaO is therefore not existent in the reduction. The reaction at the final stage of carbon monoxide reduction is given by equation 'FeO'(s)+CO(g) = Fe(s)+CO2(g) where 'FeO' is the wustite which contains CaO, SiO2 and Al2O3 as solid solutions. The temperature dependence of the apparent equilibrium constant K(=PCO(2)/PCO) of the reaction is given by the equation K=exp(-2.785 + 2,042/T) ± 0.003 (1,073-1,326 K).

    本文言語英語
    ページ(範囲)416-423
    ページ数8
    ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    75
    3
    DOI
    出版ステータス出版済み - 1989

    All Science Journal Classification (ASJC) codes

    • 凝縮系物理学
    • 物理化学および理論化学
    • 金属および合金
    • 材料化学

    フィンガープリント

    「Reduction equilibria at the final stage of reduction of quaternary calcium ferrite with CO-CO<sub>2</sub> gas mixtures」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル