炭素を含有する溶鉄によるスラグ中の MnO の還元速度

概要

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Rate of reduction of MnO in slag by liquid iron was studied at mainly 1600℃. Experiments were carried out with liquid iron containing carbon from 0.8% to saturation and CaO-SiO_2-Al_2O_3 slag containing about 5%MnO. Evolution of CO gas was observed with X-ray technique. Reduction of MnO in slag took place by exchange reaction with iron and reaction with carbon in iron. Reaction rate was interpreted by the rate equation derived from the assumption that the reaction was controlled by transfers of reacting components. Calculated mass transfer coefficient of MnO in slag was in the same order of the value obtained for the study of rate of transfer of manganese between liquid iron free of carbon and slag. Therefore, it was considered that the stirring of slag phase by CO bubbles was not so intensive.
社団法人日本鉄鋼協会の論文
1984-01-01