Thermodynamics of Phosphorus in CaO-K<SUB>2</SUB>O-CaF<SUB>2</SUB>-SiO<SUB>2</SUB> Melts

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Other Title
  • CaO-K<SUB>2</SUB>O-CaF<SUB>2</SUB>-SiO<SUB>2</SUB>系フラックス中りんの熱力学
  • CaO-K2O-CaF2-SiO2系フラックス中りんの熱力学
  • CaO K2O CaF2 SiO2ケイ フラックスチュウリン ノ ネツリキガク

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Abstract

The effect of K2O addition to the CaO-CaF2-SiO2 flux on the phosphorus partition ratio between CaO-CaF2-SiO2 flux doubly saturated with CaO and 3CaO·SiO2 and carbon saturated iron melts has been investigated at 1473, 1523 and 1573K by a chemical equilibration technique. The partition ratio increases with increasing the K2O content. The phosphate capacity of CaO-K2O-CaF2-SiO2 flux was compared with various basic fluxes. The activity of K2O in the CaO-CaF2-SiO2 system doubly saturated with CaO and 3CaO·SiO2 has been determined at 1573K which rangs from 10-13 to 10-12.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 83 (11), 689-694, 1997

    The Iron and Steel Institute of Japan

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