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Kinetics of Dephosphorization of Iron Carbon Alloys: The Importance of Competing Reactions, Slag Properties and CO Bubbles

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Extraction 2018

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

Data on the kinetics and thermodynamics of dephosphorization are analyzed in terms of the dynamic partition ratio, determined by a combination of slag thermodynamic properties and the balance of oxygen supply and consumption. A recently developed phosphate capacity correlation is combined with data on kinetics to quantify the most significant parameters in controlling the interfacial oxygen potential. The role of slag composition, entrained gas fraction and temperature are discussed in addition to metal carbon and sulfur content. It is demonstrated that the mass transport of oxygen in the slag is enhanced by factors increasing conductivity and inhibited by entrained gas. The mass transfer of phosphorus in the metal is described considering surface renewal induced by CO bubbles .

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Author information

Authors and Affiliations

  1. Department of Materials Science and Engineering, Master Steel Research Centre, McMaster University, Hamilton, Canada

    Kezhuan Gu & Kenneth S. Coley

  2. ARC Research Hub for Australian Steel Manufacturing, University of Wollongong, Wollongong, NSW, Australia

    Phillip B. Drain & Brian J. Monaghan

  3. School of Mechanical, Materials, Mechatronics and Biomedical Engineering, University of Wollongong, Wollongong, NSW, Australia

    Phillip B. Drain & Brian J. Monaghan

Authors
  1. Kezhuan Gu
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  2. Phillip B. Drain
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  3. Brian J. Monaghan
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  4. Kenneth S. Coley
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Corresponding author

Correspondence to Kezhuan Gu .

Editor information

Editors and Affiliations

  1. Kingston Process Metallurgy Inc., Kingston, Canada

    Boyd R. Davis

  2. Missouri University of Science and Technology, Rolla, USA

    Michael S. Moats

  3. Rio Tinto Kennecott Utah Copper Corporation, South Jordan, USA

    Shijie Wang

  4. RHI Magnesita, Leoben, Austria

    Dean Gregurek

  5. BBA Inc., Montreal, Canada

    Joël Kapusta

  6. Extractive Metallurgy Consultant, Kingston, Canada

    Thomas P. Battle

  7. Missouri University of Science and Technology, Rolla, USA

    Mark E. Schlesinger

  8. Aurubis, Hamburg, Germany

    Gerardo Raul Alvear Flores

  9. University of Queensland, Queensland, Australia

    Evgueni Jak

  10. XPS-Glencore, Falconbridge, Canada

    Graeme Goodall

  11. University of Utah, Salt Lake City, USA

    Michael L. Free

  12. University of British Columbia, Vancouver, Canada

    Edouard Asselin

  13. University of Lorraine, Vandœuvre-lès-Nancy, France

    Alexandre Chagnes

  14. University of British Columbia, Vancouver, Canada

    David Dreisinger

  15. Newmont Mining, Elko, USA

    Matthew Jeffrey

  16. University of Arizona, Tucson, USA

    Jaeheon Lee

  17. Miller Metallurgical Services Pty Ltd., Brisbane, Australia

    Graeme Miller

  18. University of Cape Town, Rondebosch, Australia

    Jochen Petersen

  19. Universidade Federal de Minas Gerais, Belo Horizonte, Brazil

    Virginia S. T. Ciminelli

  20. Shanghai University, Shanghai, China

    Qian Xu

  21. MetNetH20 Inc., Peterborough, Canada

    Ronald Molnar

  22. Hatch, Mississauga, Canada

    Jeff Adams

  23. University of British Columbia, Vancouver, Canada

    Wenying Liu

  24. SGS Minerals, Lakefield, Canada

    Niels Verbaan

  25. J.R. Goode and Associates Metallurgical Consulting, Toronto, Canada

    John Goode

  26. Avalon Rare Metals Inc., Toronto, Canada

    Ian M. London

  27. University of Toronto, Toronto, Canada

    Gisele Azimi

  28. SGS Minerals, Lakefield, Canada

    Alex Forstner

  29. Newmont Mining, Greenwood Village, USA

    Ronel Kappes

  30. Newmont Mining Corporation, Greenwood village, USA

    Tarun Bhambhani

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© 2018 The Minerals, Metals & Materials Society

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Gu, K., Drain, P.B., Monaghan, B.J., Coley, K.S. (2018). Kinetics of Dephosphorization of Iron Carbon Alloys: The Importance of Competing Reactions, Slag Properties and CO Bubbles. In: Davis, B., et al. Extraction 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95022-8_53

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