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An integrated approach to evaluate the leaching behaviour of silver from sulfide concentrates

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Abstract

The leaching rates of two different mineral concentrates with the same silver content were investigated by cyanide leaching with silver phases identified by scanning electron microscopy (SEM) and electrochemical analysis. The mineralogical characterization (SEM) of the concentrates showed that each contained the silver in different phases. After leaching, the disappearance of only one of the phases in each concentrate was detected. The remaining silver was contained in phases that are refractory to cyanidation. Simultaneously, an electrochemical method for the detection of the different leachable and refractory silver phases in concentrates and leach residues was developed. Cyclic voltammetry was employed with the concentrate-carbon paste electrodes (concentrate-CPE) in order to detect the oxidation of the different phases of silver contained in the mineral concentrates. The extreme sensitivity of this method allowed the rapid and reliable detection of small quantities of silver, as well as the evaluation of its refractory nature.

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References

  1. F. Habashi, in State of Montana Bureau of Mines and Geology. Bulletin 59 (1967), pp. 1–42.

    Google Scholar 

  2. K. Osseo-Asare, T. Xue and V.S.T. Ciminelli, in V. Kudryk. D.A. Corrigan and W.W. Lang (Eds), ‘Precious Metals: Mining, Extraction and Processing’ (Metallurgical Society of AIME, 1984), pp. 173–197.

  3. M.E. Wadsworth, in A.E. Torma and I.H. Gundiler (Eds), ‘Precious and Rare Metal Technologies’ (Elsevier, Amsterdam, 1989) pp. 3–15.

    Google Scholar 

  4. T. Xue and K. Osseo-Asare, Met. Trans. B 16 (1985) 455.

    Google Scholar 

  5. Y. Zhang, Z. Fang and M. Muhammed, Hydrometallurgy 46 (1997) 251.

    Google Scholar 

  6. R.M. Luna and G.T. Lapidus, Hydrometallurgy 56 (2000) 171.

    Google Scholar 

  7. M.E. Wadsworth, in N.J. Themelis and P.F. D uby (Eds) ‘Proceedings of the H.H. Kellogg International Symposium-Quantitative Description of Metal Extraction Processes’ (Minerals, Metals and Materials Society, 1991), pp. 197–216.

  8. M. Kameda, Ser. A, 1 Sci. Rep. Res. Inst. Tohoku Univ. 127 (1980) 1962.

    Google Scholar 

  9. G.Q. Liu and W.T. Yen, Min. Eng. 8 (1 and 2) (1995) 111.

    Google Scholar 

  10. L. Lorenzen and J.S.J. Van Deventer, Hydrometallurgy 30 (1992) 177.

    Google Scholar 

  11. Y. Wan-Tai and A. Massoud, in International Symposium on Gold Recovery, Montreal Canada, May (1998).

  12. X. Sun, G.Y. Charles and K.N. Han, Met. Mat. Trans. B 27 (1996) 355.

    Google Scholar 

  13. E. Ahlberg and J. Ásbjörnsson, Hydrometallurgy 34 (1993) 171.

    Google Scholar 

  14. I. Cisneros-González, M.T. Oropeza-Guzmán and I. González, Hydrometallurgy 53 (1999) 133.

    Google Scholar 

  15. R. Cruz, I. Lázaro, J.M. Rodríguez, M. Monroy and I. González, Hydrometallurgy 46 (1997) 303.

    Google Scholar 

  16. I. Lázaro, N. Martínez-Medina, I. Rodríguez, E. Arce and I. González, Hydrometallurgy 38 (1995) 277.

    Google Scholar 

  17. D.J.G. Ives and G.J. Janz, ‘Reference electrodes: Theory and Practice.’ (Academic Press, London, 1961).

    Google Scholar 

  18. R.T. Shuey, ‘Developments in Economic Geology Semiconducting Ore Minerals’. (Elsevier, 1975), pp. 328–329.

  19. Mineral Powder Diffraction File, International Centre for Di.raction Data, USA (1986).

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Correspondence to G.T. Lapidus.

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Luna-Sánchez, R., González, I. & Lapidus, G. An integrated approach to evaluate the leaching behaviour of silver from sulfide concentrates. Journal of Applied Electrochemistry 32, 1157–1165 (2002). https://doi.org/10.1023/A:1021262503128

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  • DOI: https://doi.org/10.1023/A:1021262503128

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