Kinetics of Reaction between Iron Oxide Slags and Solid Carbon

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  • 溶融酸化鉄の固体炭素による還元の速度論的研究
  • ヨウユウ サンカ テツ ノ コタイ タンソ ニヨル カンゲン ノ ソクドロンテ

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Abstract

Rates and mechanism of redcution of molten iron oxide slags with solid carbon in the temperature range from 1400°C to 1600°C have been studied. The volume of evolved CO gas as a product has been indicated on a gas flow meter, and recorded photographically. For FeO-10wt%SiO2 slag, the reduction is controlled by chemical reaction in the range where solid SiO2 does not precipitate and is controlled by FeO transport process after the range where solid SiO2 pecipitates. For FeO-CaO slag, the temperature dependency on reaction rates is negligibly small, and the product is very porous. The reaction takes place in the form of a chain of reaction consisting in reduction by CO gas and the Boudouard reaction.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 64 (3), 367-375, 1978

    The Iron and Steel Institute of Japan

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