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Metallurgical and Materials Transactions B

, Volume 31, Issue 1, pp 15–24 | Cite as

Lead solubility in FeO x -CaO-SiO2 slags at iron saturation

  • Masami Kudo
  • Evgueni Jak
  • Peter Hayes
  • Katsunori Yamaguchi
  • Yoichi Takeda
Article

Abstract

Experiments have been carried out to determine the equilibria between FeO x -CaO-SiO2 slag and lead metal in iron crucibles at temperatures ranging from 1473 to 1573 K. It has been found that the highest lead solubilities are observed in the silica-saturated iron silicate slags, while the lowest solubilities are observed in the CaO-saturated calcium ferrite slags. The activity coefficient of PbO varies from 0.15 to 3, depending on the slag composition. Changes in temperature do not have a significant impact on the activity coefficient. The activity of FeO and pct Fe3+/pct Fe2+ ratios have been determined as a function of slag composition. These new experimental data have been incorporated into an optimized thermodynamic slag model using the computer package FACT.

Keywords

Material Transaction Activity Coefficient Oxygen Partial Pressure Wustite Metallic Iron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© ASM International & TMS-The Minerals, Metals and Materials Society 2000

Authors and Affiliations

  • Masami Kudo
    • 1
  • Evgueni Jak
    • 2
  • Peter Hayes
    • 2
  • Katsunori Yamaguchi
    • 3
  • Yoichi Takeda
    • 3
  1. 1.Kuji High School, Yamagnta-muraIwate PrefectureJapan
  2. 2.the Department of Mining, Minerals and Materials EngineeringThe University of QueenslandSt LuciaAustralia
  3. 3.the Department of Materials Science and Technology, Faculty of EngineeringIwate UniversityMoriokaJapan

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