Influence of Slag Composition and Temperature on Slag Foaming

Shinya Kitamura, Kazuo Okohira

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

The slag foaming behavior caused by the reaction between FeO containing slag and hot metal was investigated for the CaO-SiO2-Al2O3-P2O5-TiO2-MnO-MgO-CaFj system. The peak of slag foaming height was observed when (CaO)/(SiO2) was around 1.2 and the peak value of (CaO)/(SiO2) became slightly large with the increase in temperature and the CaF2 mixing ratio. In the high (CaO)/(SiO2) region, the slag foaming height increased with the increase in temperature and the CaF2 mixing ratio. Under this experimental condition, the inverse proportional relationship between the slag viscosity and the slag foaming height was found but no significant influence of P2Og was observed. In the solid and liquid coexisting region, slag foaming height increased with the increase in liquid fraction.

Original languageEnglish
Pages (from-to)741-746
Number of pages6
JournalIsij International
Volume32
Issue number6
DOIs
Publication statusPublished - 1992

Keywords

  • hot metal pretreatment
  • liquid fraction
  • slag composition
  • slag foaming
  • temperature dependence
  • viscosity

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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