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Flash smelting and converting furnaces: A 50 year retrospect

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Abstract

1999 marked the 50th anniversary of the Outokumpu flash-smelting process. Originating during the post-World War II energy crisis, flash smelting is a high-intensity process developed to attain ever-increasing throughputs and intensities. Many innovations and continuous development ensued during the next 50 years before today’s state-of-the-art copper-making process chain and environmental benchmarking technology (e.g., Outokumpu flash smelting, Kennecott-Outokumpu flash converting, and flash technology) became possible. This article reviews how Outokumpu flash furnace design, especially cooling for higher heat loads, has improved over the years.

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References

  1. J. Sulanto, “Outokumpu Flash Smelting—The Efficient and Non-Polluting Metallurgical Process” (Paper presented at the VTT Symposium on Non-Waste Technology, Espoo, Finland, 20–23 June 1988).

  2. P. Hanniala, “Copper Smelting Technology—How Outokumpu Sees Flash Smelting Technology Advancing” (Paper presented at the Metal Bulletin Conference, Santiago, Chile, 1990).

  3. I.V. Kojo and P. Hanniala, “Flash Smelting—Leading the Way to New Century” (Paper presented at the Second Int. Symp. Met. Processes for the Year 2000 and Beyond, San Diego, CA, 21–23 September 1994).

  4. P. Hanniala and I.V. Kojo, “Utilization of Outokumpu Flash Technology to Meet Environmental Requirements,” COPPER 95-COBRE 95 Int. Conf., Vol. II: Mineral Processing and Environment, ed. A. Casali et al. (Montreal, Canada: Metallurgical Society of CIM, 1995).

    Google Scholar 

  5. J. Asteljoki et al., “Flash Converting—Continuous Converting of CopperMattes,” Journal of Metals, 37 (5) (1985), pp. 20–23.

    CAS  Google Scholar 

  6. P. Hanniala, I.V. Kojo, and M. Kytö, “The Kennecott-Outokumpu Flash Converting Process. Facts and Fictions” (Paper presented at the TMS Annual Meeting, San Francisco, CA, 27 February–3 March 1994).

  7. D.B. George, R.J. Gottling, and C.J. Newman, “Modernization of Kennecott Utah Copper Smelter,” COPPER 95-COBRE 95 Int. Conf., Vol. IV: Pyrometallurgy of Copper, ed. W.J. Chen et al. (Montreal, Canada: Metallurgical Society of CIM, 1995).

    Google Scholar 

  8. B.D. Farmer and C.J. Newman, “Kennecott Utah Copper Smelter and Refinery Environmental Benchmarking” (Paper presented at CRU’s Benchmarking Base Metals Operations Conference, Tucson, Arizona, 5–6 November 1998).

  9. J.A. Asteljoki and H.B. Muller, “Direct Smelting of Blister Copper-Pilot Flash Smelting Tests of Olympic Dam Concentrate,” Pyrometallurgy ’87 (London: Institution of Min. Met., 1987), pp. 19–52.

    Google Scholar 

  10. T.J.A. Smith, I. Posener, and C.J. Williams, “Oxygen Smelting the Olympic Dam Project” (Paper presented at the CIM Annual Meeting 1987, Winnipeg, Canada, 1987).

  11. P. Hanniala, L. Helle, and I.V. Kojo, “Competitiveness of the Outokumpu Flash Smelting Technology. Now and in the Third Millennium,” 4th Int. Conf. Copper 99—Cobre 99. Vol. V: Smelting Operations and Advances, ed. D.B. George et al. (Warrendale, PA: TMS, 1999), pp. 221–238.

    Google Scholar 

  12. J. Asteljoki, J. Sulanto, and T. Talonen, “Outokumpu Flash Smelting Method and Its Applications for Nickel and Lead Production” (Paper presented at the Minerals Processing and Extractive Metallurgy Conference, Kunming, China, 14–20 October 1984).

  13. I.V. Kojo, T. Mäkinen, and P. Hanniala, “Direct Outokumpu Nickel Flash Smelting Process—DON—High Metal Recoveries with Minimum Emissions” (Paper presented at the CIM Conference, Sudbury, Canada, August 1997).

  14. E. Nermes, “Flash Smelting of Pyrite Concentrate at Kokkola, Finland” (Paper presented at the First International Flash Smelting Congress, Finland, October 1972).

  15. E. Krogerus, J. Sulanto, and T. Talonen, “The Outokumpu Lead Flash Smelting Process” (Paper presented at the AusIMM Symp. on Extractive Metallurgy, Melbourne, Australia, November 1984).

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For more information, contact I.V. Kojo, Outokumpu Engineering Contractors Oy, P.O. Box 862, FIN-02201 Espoo, Finland; telephone 358-9-4211; fax 358-9-421 3973; e-mail ilkka.kojo@outokumpu.com.

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Kojo, I.V., Jokilaakso, A. & Hanniala, P. Flash smelting and converting furnaces: A 50 year retrospect. JOM 52, 57–61 (2000). https://doi.org/10.1007/s11837-000-0049-5

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  • DOI: https://doi.org/10.1007/s11837-000-0049-5

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