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Effect of the bubble size and chemical reactions on slag foaming

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Abstract

Slag foams have been investigated with smaller bubbles than those used in the previous studies.[5,6,7] The bubbles were generated by argon gas injection with the nozzle of multiple small orifices and by the slag/metal interfacial reaction of FeO in the slag with carbon in the liquid iron. The foam stability in terms of the foam index for a bath-smelting type of slag (CaO-SiO2-Al2O3-FeO) was determined for different bubble sizes. The average diameter of bubbles in the foam was measured by an X-ray video technique. When the foam was generated by the slag/metal interfacial reaction at 1450 °C, it was found that the average bubble diameter varied from less than 1 to more than 5 mm as a function of the sulfur activity in the carbon-saturated liquid iron. The foam index was found to be inversely proportional to the average bubble diameter. A general correlation is obtained by dimensional analysis in order to predict the foam index from the physical properties of the liquid slag and the average size of the gas bubbles in the foam.

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References

  1. CF. Cooper and J.A. Kitchener:J. Iron Steel Inst., 1959, Sept., p. 48–55.

  2. J.H. Swisher and C.L. McCabe:Trans. TMS AIME, 1964, vol. 230, p. 1669–1675.

    CAS  Google Scholar 

  3. S. Hara, M. Ikuta, M. Kitamura, and M. Ogino:Tetsu-to-Haganeá, 1983, vol. 69, p. 1152–59 (in Japanese).

    CAS  Google Scholar 

  4. P. Kozakevitch:J. Met, 1969, vol. 21, p. 57–67.

    CAS  Google Scholar 

  5. K. Ito and R.J. Fruehan:Metall. Trans. B, 1989, vol. 20B, p. 509–514.

    CAS  Google Scholar 

  6. R. Jiang and R.J. Fruehan:Metall. Trans.B, 1991, vol. 22B, p. 481–189.

    CAS  Google Scholar 

  7. R. Roth, R. Jiang, and R.J. Fruehan:Ironmaking and Steelmaking, 1992, Nov., pp. 55–63.

  8. E. Manegold:Schaum, Chemie und Technik Verlagsgesellschaft, Heidelberg, 1953.

  9. S. Ross and I.D. Morrison:Colloidal Systems and Interfaces, John Wiley & Sons, New York, NY, 1988, p. 294.

    Google Scholar 

  10. A. Monsalve and R.S. Schechter:J. Colloid Interface Sci., 1984, vol. 97, p. 327–335.

    Article  CAS  Google Scholar 

  11. S. Ross:J. Phys. Chem. 1943, vol. 47, p. 266–277.

    Article  CAS  Google Scholar 

  12. I. Jimbo: Carnegie Mellon University, Pittsburgh, PA, private communication, 1992.

  13. D.-J. Min and R.J. Fruehan:Metall. Trans. B, 1992, vol. 23B, p. 29–37.

    CAS  Google Scholar 

  14. Y. Ogawa, D. Huin, Henri Gaye, and N. Tokumitsu:ISIJ International, vol. 33 (1993), p. 224–232.

    CAS  Google Scholar 

  15. Y. Kojima:Trans. Iron Steel Inst. Jpn., 1971, vol. 11, p. 349–354.

    CAS  Google Scholar 

  16. A.W. Cramb and I. Jimbo:Steel Res., 1989 (3/4), vol. 60, p. 157–165.

    CAS  Google Scholar 

  17. Y. Ogawa and N. Tokumitsu:Proc. of 6th International Iron and Steel Congress, ISIJ, Nagoya, Japan, 1990, p. 147–152.

    Google Scholar 

  18. P. Kozakevitch: inKinetics of Metallurgical Processes in Steelmaking, W. Dahl, K.W. Lange, and D. Papamantellos eds., Düsseldorf, 1975, p. 513–533.

  19. Y. Zhang: Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA, 1992.

    Google Scholar 

  20. H. Terashima, T. Nakamura, K. Mukai, and D. Izu:J. Jpn. Inst. Met., 1992, vol. 56, p. 422–429 (in Japanese).

    CAS  Google Scholar 

  21. A.K. Chesters:International J. of Multiphase Flow, 1978, vol. 4, p. 279–302.

    Article  CAS  Google Scholar 

  22. K. Mukai: US-Japan Joint Seminar, Fundamentals of Bath Smelting and Clean Steel Production, Myrtle Beach, October 7-9, 1991.

  23. J.K. Brimacombe, K. Nakanishi, P.E. Anagbo, and G.G. Richards:Elliott Symposium, 1990, June 10-13, 1990, Cambridge, MA, MIT, p. 304–72.

    Google Scholar 

  24. K. Ruff:Chem.-Ing.-Tech, 1972, vol. 44, p. 1360.

    Article  CAS  Google Scholar 

  25. K.C. Mills and B.J. Keene:Int. Mater. Rev. 1987, vol. 32 (1/2), p. 105–110.

    Google Scholar 

  26. G. Urbain:Steel Res., 1987, vol. 58 (3), p. 111–16.

    CAS  Google Scholar 

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Authors and Affiliations

  1. Armco Advanced Materials Company, 16003-0832, Butler, PA

    Y. Zhang (Senior Process Engineer)

  2. Department of Materials Science and Engineering, Carnegie Mellon University, 15213, Pittsburgh, PA

    R. J. Fruehan (Professor)

Authors
  1. Y. Zhang
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  2. R. J. Fruehan
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Formerly Graduate Student and Research Associate, Department of Materials Science and Engineering, Carnegie Mellon University.

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Zhang, Y., Fruehan, R.J. Effect of the bubble size and chemical reactions on slag foaming. Metall Mater Trans B 26, 803–812 (1995). https://doi.org/10.1007/BF02651727

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  • DOI: https://doi.org/10.1007/BF02651727

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