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Evaluation of Surface Tension of Molten Slag in Multi-component Systems

2007; The Iron and Steel Institute of Japan; Volume: 47; Issue: 7 Linguagem: Inglês

10.2355/isijinternational.47.935

1347-5460

Masahito Hanao, Toshihiro Tanaka, Masayuki Kawamoto, Kouji Takatani,

Recycling and utilization of industrial and municipal waste in materials production

A thermodynamic model for determining the surface tension of molten ionic mixtures, derived by considering the ionic radii of the components, was extended to multi-component slag systems. The composition dependence of the surface tension in 6-component systems of the type CaO–SiO2–Al2O3–MgO–Na2O–CaF2 was evaluated with the present model using information based on the surface tension and molar volume of the pure oxide components, and on the anionic and cationic radii. The evaluated results for the surface tension agree well with literature data.