FeO-CaO-SiO<SUB>2</SUB>系スラグ融体の固体炭素による還元速度

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書誌事項

タイトル別名
  • The Kinetics of the Reduction of FeO in CaO-SiO<SUB>2</SUB> Slag with Solid Carbon
  • FeO-CaO-SiO2系スラグ融体の固体炭素による還元速度
  • FeO CaO SiO2ケイ スラグ ユウタイ ノ コタイ タンソ ニヨル カ

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説明

The rate of FeO reduction in CaO-SiO2 slag with a graphite crucible as a reductant has been determined. The testing temperature is ranged from 1400°C to 1600°C and basicity (CaO/SiO2) is ranged from 0.5 to 2.0. The reduction rate is independent on the FeO concentration in molten slag in the range of reduction degree 30% to 80%. It is found that the reduction takes place in the form of indirect reduction in which CO as reductant is consummed and regenerated by solid carbon and controlling step is the gasfication reaction. The reaction model is developed and applied to the simulation for the change of reduction degree. The CaO increases the reduction rate. This effect can be best interpreted by the foaming mechanism.

収録刊行物

  • 鉄と鋼

    鉄と鋼 64 (3), 376-384, 1978

    一般社団法人 日本鉄鋼協会

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