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On the oxidation of cyanides in the stack region of the blast furnace

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Abstract

Computed results are reported on the oxidation of KCN particles carried by blast furnace gas through the stack region of the furnace. The calculations were performed on the assumption that the oxidation process is mass transfer controlled, but proper allowance was made for the variable CO/CO2 ratios and temperatures to which the particles are exposed during their passage through the stack. The results of these calculations show that for cyanide particles in the range 0.02 to 0.1 cm in diameter the system may be extremely sensitive both to the temperature profiles and to the CO/CO2 ratios within the stack; thus the control of these parameters could provide a means of controlling cyanide emissions.

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References

  1. E. Schurmann, H. Th. Brandi, E. Flachsenhaor, and W. Altpeter:Stahl Eisen, 1968, vol. 88, pp. 665–72.

    Google Scholar 

  2. C. A. Bishop, A. H. Brisse, R. G. Thompson, C. R. Liebel, and W. A. Swaney: AISI Yearbook, 1951, pp. 459–75.

  3. J. S. Mackay and J. F. Kearns:Trans. ASME, Ser. A, J. Eng. Power, 1960, vol. 82, p. 68.

    CAS  Google Scholar 

  4. R. L. Stephenson (U. S. Steel Corporation, Applied Research Laboratory):Formation of Cyanides and Alkalies in the Blast Furnace, AISI Tech. Committee on Blast Furance Practice, Oral Presentation, Pittsburgh, December 4–5, 1969.

  5. Dow Chemical Company: JANAF Thermochemical Tables, Midland, Michigan, 1965.

  6. R. B. Bird, W. E. Stewart, and E. N. Lightfoot:Transport Phenomena, p. 647, John Wiley and Sons, New York, 1960.

    Google Scholar 

  7. E. Schurmann, W. Zisehkale, P. Ischebeck, and G. Heynert:Stahl Eisen, 1960, vol. 80, p. 854, cited by V. Koump, R. H. Tien, R. G. Olsson, and T. F. Perzak,Met. Soc. Conf, 1966,vol. 32,Process Simulation and Control in Iron and Steelmaking, J. M. Uys and H. L. Bishop, eds., p. 125, Gordon and Breach.

    Google Scholar 

  8. J. Szekely and N. J. Themelis:Rate Phenomena in Process Metallurgy, p. 608, John Wiley and Sons, New York, 1971.

    Google Scholar 

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Authors and Affiliations

  1. Center for Process Metallurgy, State University of New York at Buffalo, Buffalo, N.Y.

    H. Y. Sohn (Postdoctoral Fellow) & J. Szekely (Professor of Chemical Engineering, Director)

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  1. H. Y. Sohn
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  2. J. Szekely
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Sohn, H.Y., Szekely, J. On the oxidation of cyanides in the stack region of the blast furnace. Metall Trans 3, 2183–2185 (1972). https://doi.org/10.1007/BF02643230

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  • DOI: https://doi.org/10.1007/BF02643230

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