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Effect of slag/metal interfacial tension on kinetics of dephosphorisation

Journal Article


Abstract


  • The effect of interfacial tension on the kinetics of the dephosphorisation of iron has been investigated. X-ray monitoring of the shape of a molten iron droplet in liquid slag showed that there was a marked reduction in the interfacial tension γms during periods of rapid mass transfer and an increase in γms as the mass transfer process slowed down, similar to that observed for desulphurisation. The dephosphorisation kinetics was found to be first order with respect to phosphorus in the liquid iron and implied that, for the system studied, mass transfer of phosphorus in the slag phase is the rate controlling step. © 1999 IoM Communications Ltd.

Publication Date


  • 1999

Citation


  • Nasu, M., Mills, K. C., Monaghan, B. J., Jakobsson, A., & Seetharaman, S. (1999). Effect of slag/metal interfacial tension on kinetics of dephosphorisation. Ironmaking and Steelmaking, 26(5), 353-357. doi:10.1179/030192399677211

Scopus Eid


  • 2-s2.0-0033280337

Start Page


  • 353

End Page


  • 357

Volume


  • 26

Issue


  • 5

Abstract


  • The effect of interfacial tension on the kinetics of the dephosphorisation of iron has been investigated. X-ray monitoring of the shape of a molten iron droplet in liquid slag showed that there was a marked reduction in the interfacial tension γms during periods of rapid mass transfer and an increase in γms as the mass transfer process slowed down, similar to that observed for desulphurisation. The dephosphorisation kinetics was found to be first order with respect to phosphorus in the liquid iron and implied that, for the system studied, mass transfer of phosphorus in the slag phase is the rate controlling step. © 1999 IoM Communications Ltd.

Publication Date


  • 1999

Citation


  • Nasu, M., Mills, K. C., Monaghan, B. J., Jakobsson, A., & Seetharaman, S. (1999). Effect of slag/metal interfacial tension on kinetics of dephosphorisation. Ironmaking and Steelmaking, 26(5), 353-357. doi:10.1179/030192399677211

Scopus Eid


  • 2-s2.0-0033280337

Start Page


  • 353

End Page


  • 357

Volume


  • 26

Issue


  • 5