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The prediction and representation of phase equilibria and physicochemical properties in complex slag systems

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Abstract

The development of new experimental techniques for the determination of phase equilibria in complex slag systems, chemical thermodynamic, and viscosity models is reported. The new experimental data, and new thermodynamic and viscosity models, have been combined in a custom-designed computer software package to produce limiting operability diagrams for slag systems. These diagrams are used to describe phase equilibria and physicochemical properties in complex slag systems. The approach is illustrated with calculations on the system FeO-Fe2O3-CaO-SiO2-Al2O3 at metallic iron saturation, slags produced in coal slagging gasifiers, and in the reprocessing of nonferrous smelting slags. This article was presented at the Mills Symposium “Molten Metals, Slags and Glasses-Characterisation of Properties and Phenomena” held in London in August 2000.

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Author information

Authors and Affiliations

  1. Centre for Coal in Sustainable Development, Brisbane, Australia

    E. Jak (Research Director)

  2. PYROSEARCH, Pyrometallurgy Research Centre, School of Engineering, The University of Queensland, 4072, St Lucia, Queensland, Australia

    E. Jak (Research Director)

  3. PYROSEARCH, Pyrometallurgy Research Centre, School of Engineering, The University of Queensland, 4072, St Lucia, Queensland, Australia

    A. Kondratiev (Postgraduate Student), S. Christie (Research Officer) & P. C. Hayes (Professor and Director)

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  1. E. Jak
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  2. A. Kondratiev
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  3. S. Christie
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  4. P. C. Hayes
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Additional information

This article is based on a presentation given in the Mills Symposium entitled “Metals, Slags, Glasses: High Temperature Properties & Phenomena,” which took place at The Institute of Materials in London, England, on August 22–23, 2002.

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Jak, E., Kondratiev, A., Christie, S. et al. The prediction and representation of phase equilibria and physicochemical properties in complex slag systems. Metall Mater Trans B 34, 595–603 (2003). https://doi.org/10.1007/s11663-003-0029-6

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