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Pyrometallurgical Processing Technologies for Treating High Arsenic Copper Concentrates

  • Patrick R. Taylor
  • Teuku A. R. Putra
Conference paper

Abstract

Various pyrometallurgical methods for treating copper concentrates that contain appreciable arsenic are reviewed. Various aspects of the engineering of these treatment methods are discussed. The methods discussed include: complete oxidation with arsenic fixation; selective volatilization of arsenic; acid baking, soda ash roasting, and others methods. Methods for the ultimate disposal, or marketing, of the arsenic are discussed.

Keywords

Pyrometallurgy Copper Concentrates Arsenic 

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References

  1. 1.
    W.G. Davenport, M. King, M. Schlesinger, A.K. Biswas, Extractive metallurgy of copper 4th edition (New York: Pergamon Press, 2002), 1–2.CrossRefGoogle Scholar
  2. 2.
    J.G. Peacey, M.Z. Gupta and K.J.R. Ford “Review of process options to treat enargite concentrates.” Proceedings of Copper 2010, Vol. 3, Pyrometallurgy II (Hamburg, GDMB, 2010), 1035–1050.Google Scholar
  3. 3.
    Anonymous, personal communication, 2013.Google Scholar
  4. 4.
    H. Fabian, H.W. Richardson, F Habashi, and R. Besold, “Chapter 8, Copper.” Handbook of Extractive Metallurgy, (F. Habashi, Ed.), Wiley-VCH, (1997) pp. 491–579.Google Scholar
  5. 5.
    B.S. Terry and M. Sánchez, “Environmentally friendly processing of copper minerals bearing arsenic and/or sulfur by pyrometallurgical route”, Proceedings of Copper 95 International Conference, vol. II, (A. Casali, G.S. Dobby, C. Molina and W.J. Thoburn, Eds.), Santiago, Chile, (1995), pp. 337–345.Google Scholar
  6. 6.
    E.H. Smith and E. Paredes, “How St. Joe Gold’s El Indio mine has become a major producer of high quality crude arsenic trioxide,” Arsenic Metallurgy: Fundamentals and Applications, (R.G. Reddy, J.L. Hendrix, and P.B. Queneau, Eds.), Warrendale, PA: The Metallurgical Society, (1988), pp. 145–160.Google Scholar
  7. 7.
    U.S. Geological Survey, Mineral Commodity Summaries, January (2013), Arsenic, pp. 20–21.Google Scholar
  8. 8.
    R. Padilla, Y. Fan, M. Sanchez, and I. Wilkomirsky, I., 1997, “Arsenic volatilization from enargite concentrate.” EPD Congress 1997, (B. Mishra, Ed.), Warrendale, PA: The Minerals, Metals and Materials Society, (1997) pp. 73–83.Google Scholar
  9. 9.
    R. McElroy, T. Lipiec, and M. Tomlinson, M., 2008, “Roasting — the neglected option.” Hydrometallurgy 2008, Proceedings of the SME Sixth International Symposium, (2008) pp. 425–430.Google Scholar
  10. 10.
    N.L. Piret, and A.E. Melin, “An engineering approach to the arsenic problem in the extraction of non-ferrous metals”, Productivity and Technology in the Metallurgical Industries, (M. Koch and J.C. Taylor, Eds.), TMS, Warrendale, PA, USA, (1989), pp. 735–814Google Scholar
  11. 11.
    K. Baxter, H. Scriba, and I. Vega, “Treatment of high-arsenic copper-gold concentrates- An options review”, Copper 2010, Hamburg, Germany, vol. 5, (2010), pp. 1783–1802.Google Scholar
  12. 12.
    G. Lindkvist and A. Holmström, “Roasting of complex concentrates with high arsenic content”, Advances in Sulfide Smelting, Technology and Practice, (H.Y. Sohn, D.B. George, and A.D. Zunkel, Eds.), Warrendale, PA: The Metallurgical Society, vol. II, (1983), pp. 451–472.Google Scholar
  13. 13.
    M.S. Safarzadeh, M.S., Moats, M.S. and J.D. Miller, “Recent trends in the processing of enargite concentrates.” Mineral Processing and Extractive Metallurgy Review, DOI: 10.1080/08827508.2012.723651. (2012a).Google Scholar
  14. 14.
    M.S. Safarzadeh, M.S., Moats and J.D. Miller, J.D., 2012b, “An update to recent trends in the processing of enargite concentrates.” Mineral Processing and Extractive Metallurgy Review: DOI: 10.1080/08827508.2012.725683 (2012b)Google Scholar
  15. 15.
    R. Padilla, Y. Fan, and I. Wilkomirsky, I., “Thermal decomposition of enargite.” EPD Congress 1999, (B. Mishra, Ed.), Warrendale, PA: The Minerals, Metals and Materials Society, (1999) pp. 341–351.Google Scholar
  16. 16.
    R. Padilla, Y. Fan, Y. and I. Wilkomirsky, “Decomposition of enargite in nitrogen atmosphere.” Canadian Metallurgical Quarterly, 40, (2001) pp. 335–342.CrossRefGoogle Scholar
  17. 17.
    R. Padilla, A. Aracena and M.C. Ruiz, “Reaction mechanism and kinetics of enargite oxidation at roasting temperatures.” Metallurgical and Materials Transactions B, 43B, (2012) pp. 1119–1126.CrossRefGoogle Scholar
  18. 18.
    Yoshimura, Z., 1962, “The fundamental investigation of desarsenifying roasting of copper concentrate and its industrial practice.” Journal of the Mining and Metallurgical Institute of Japan, 78, pp. 447–453Google Scholar
  19. 19.
    A.C. Secco, G.A. Riveros and A.A. Luraschi, “Thermal decomposition of enargite and phase relations in the system copper-arsenic-sulfur”, Copper 87, Pyrometallurgy of Copper, (C. Diaz, C. Landolt, and A. Luraschi, Eds.), Santiago, Chile: Universidad de Chile, vol. 4, (1988), pp. 225–238.Google Scholar
  20. 20.
    A. Ulloa, M. Sánchez and B.S. Terry, “Lime roasting of enargite” IMM Pyrometallurgy 95, Cambridge, UK, (1995), pp. 275–283.Google Scholar
  21. 21.
    B.S. Terry, M.A. Sánchez and A.G. Ulloa, “Calcium oxide as a reagent for the capture of arsenic emissions during the roasting of enargite,” Extraction and Processing for the Treatment and Minimization of Wastes, (J.P. Hager, B.J. Hansen, W.P. Imrie, J.F. Pusateri, and V. Ramachandran, Eds.), Warrendale, PA: TMS, (1994), pp. 201–215.Google Scholar
  22. 22.
    J. Liu, R. Chi, R., Z. Zeng, J. Liang and Z. Xu, Z.,“Selective arsenic-fixing roast of refractory gold concentrate.” Metallurgical and Materials Transactions B, 31B, (2000) pp. 1163–1168.CrossRefGoogle Scholar
  23. 23.
    P.R. Taylor, Z.B. Yin and R.W. Bartlett, R.W., 1990, “Lime roasting of pyrite.” Gold 90, D. Hausen, Ed., SME, Littleton, CO (1990), pp. 411–419.Google Scholar
  24. 24.
    P.R. Taylor, Z.B. Yin, S.L. Bell and R.W. Bartlett, R.W., 1991, “Lime roasting of refractory precious metal ores.” EPD Congress 91, D.R. Gaskell, Ed., TMS, Warrendale, PA, (1991) pp. 725–742.Google Scholar
  25. 25.
    P. R. Taylor and Z.B. Yin, “Soda Ash Roasting of Sb-As-Precious Metal Concentrates,” Mineral and Metallurgical Processing, (Nov. 1993) pp. 163–169.Google Scholar
  26. 26.
    T.A.R. Putra “Arsenic Removal from Enargite with Sodium Carbonate Using Complete and partial Oxidation,” Ph.D. Thesis, Colorado School of Mines, Golden, CO (2013).Google Scholar
  27. 27.
    B.T. Chambers, “An investigation into the sulfation roasting of enargite concentrates.” MSc. Thesis, Queen’s University, Canada (2012).Google Scholar
  28. 28.
    M. S. Safarzadeh, M. S. Moats, J. D. Miller (2012). “Acid bake-leach process for the treatment of enargite concentrates”, Hydrometallurgy, 119–120, 30–39.CrossRefGoogle Scholar
  29. 29.
    P. D. Oudenne, “The Stage- Selective Roasting, An Efficient way for the Treatment of Arsenical and Antimonical Bearing Concentrates and Other Complex Metallurgical By Products”, Sohn International Symposium, Edited by F. Kongoli and R.G. Reddy TMS, Warrendale PA (2006) pp. 519–527.Google Scholar
  30. 30.
    R. McElroy, T. Lipiec and M. Tomlinson, M., “Roasting — the neglected option.” Hydrometallurgy 2008, Proceedings of the SME Sixth International Symposium, (2008) pp. 425–430.Google Scholar
  31. 31.
    G. Ondrey, “A new roasting process slated for commercialization.” Chemical Engineering, March (2012) pp. 9.Google Scholar
  32. 32.
    Malcolm Pirnie, Inc., 2010, “Review of ASARCO El Paso smelting processes.” Texas Custodial Trust, El Paso, TX.Google Scholar
  33. 33.
    Dundee Precious Metals Inc. website, 2012, http://www.dundeeprecious.com/files/annual_report/122195%20DIJNDEE%20AR %2 Complete_final_v0011_h3aq6j.pdf.
  34. 34.
    A. Valenzuela, E. Balladares and D. M. Cordero, “ Arsenic management in the Metallurgical Industry: The Chilean Experience”, Sohn International Symposium Vol 9, Edited by F. Kongoli and R.G. Reddy, TMS, (2006) pp. 408–422Google Scholar
  35. 35.
    C.G. Anderson and L.G. Twidwell, “The control of iron and arsenic in the treatment of gold bearing enargite concentrates”, Iron Control Technologies, (J.E. Dutrizac and P.A. Riveros, Eds.), Montreal, Canada, (2006), pp. 943–956.Google Scholar
  36. 36.
    P.A. Riveros, J.E. Dutrizac and P. Spencer, P., 2001, “Arsenic disposal practices in the metallurgical industry.” Canadian Metallurgical Quarterly, 40, (2001) pp. 395–420.CrossRefGoogle Scholar

Copyright information

© TMS (The Minerals, Metals & Materials Society) 2014

Authors and Affiliations

  • Patrick R. Taylor
    • 1
  • Teuku A. R. Putra
    • 1
  1. 1.Kroll Institute for Extractive Metallurgy George S. Ansell Department of Metallurgical and Materials EngineeringColorado School of MinesGoldenUSA

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