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ASPECTS OF THE BEHAVIOUR OF SULPHUR IN A KILN FOR THE PRODUCTION OF SPONGE IRON.

Conference Paper


Abstract


  • The thermodynamics and kinetics of the sulphurization and desulphurization of D. R. I. wustite, and magnetite were studied. The equilibrium constants of the reactions were determined from calculations based on published thermodynamic tables, and a thermogravimetric technique was used in the study of the kinetics. Sulphurization was effected by the use of either hydrogen sulphide or carbon oxysulphide. The possibility that wustite or magnetite may react with sulphur in the preheating zone of the kiln, which was indicated by the thermodynamic study, was confirmed by the kinetic study. Heating of the kiln charge at a high rate under oxidizing conditions is suggested for the improved transfer of sulphur from the ferrous charge to the gaseous phase.

Publication Date


  • 1985

Citation


  • Theron, J. A., & Dippenaar, R. J. (1985). ASPECTS OF THE BEHAVIOUR OF SULPHUR IN A KILN FOR THE PRODUCTION OF SPONGE IRON.. In Unknown Conference Vol. 2 (pp. 759-767).

Scopus Eid


  • 2-s2.0-0022279993

Web Of Science Accession Number


Start Page


  • 759

End Page


  • 767

Volume


  • 2

Abstract


  • The thermodynamics and kinetics of the sulphurization and desulphurization of D. R. I. wustite, and magnetite were studied. The equilibrium constants of the reactions were determined from calculations based on published thermodynamic tables, and a thermogravimetric technique was used in the study of the kinetics. Sulphurization was effected by the use of either hydrogen sulphide or carbon oxysulphide. The possibility that wustite or magnetite may react with sulphur in the preheating zone of the kiln, which was indicated by the thermodynamic study, was confirmed by the kinetic study. Heating of the kiln charge at a high rate under oxidizing conditions is suggested for the improved transfer of sulphur from the ferrous charge to the gaseous phase.

Publication Date


  • 1985

Citation


  • Theron, J. A., & Dippenaar, R. J. (1985). ASPECTS OF THE BEHAVIOUR OF SULPHUR IN A KILN FOR THE PRODUCTION OF SPONGE IRON.. In Unknown Conference Vol. 2 (pp. 759-767).

Scopus Eid


  • 2-s2.0-0022279993

Web Of Science Accession Number


Start Page


  • 759

End Page


  • 767

Volume


  • 2