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Pretreatment by electrolytic or oxidative leaching for recovery of gold and silver from refractory sulphide concentrates

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Hydrometallurgy ’94

Abstract

Anodic electroleaching or leaching using acid chloride media can be used to release the fine gold grains locked in a Portuguese arsenopyrite concentrate that exhibits refractory behaviour towards direct oxidative thiourea leaching. The efficiency of leaching or electroleaching processes as a pre-treatment, involving acidic chloride solutions, is evaluated in this work. The dissolution of silver during pre-treatment and its recovery from the liquor using solvent extraction with CYANEX 47IX and triphenylphosphine has also been studied and an alternative process minimizing silver dissolution during pre-treatment has been investigated.

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References

  1. Sanberg R.G. and Huiatt J.L. (1986) Ferric chloride, thiourea and brine leach recovery of Ag, Au and Pb from complex sulfides. Journal of Metals, June, 18–22

    Google Scholar 

  2. Kirk D.W., Gehring R. and Graydon W.F. (1987) Electrochemical leaching of a silver arsenopyrite ore. Hydrometallurgy, 17, 155–166

    Article  Google Scholar 

  3. Chandar S. and Briceno A. (1987) Kinetics of pyrite oxidation. Minerals and Metallurgical Processing, August, 171–176

    Google Scholar 

  4. Dalton R.F., Diaz G., Price R. and Zunkel AD. (1991) The Cuprex metal extraction process: recovering copper from sulfide ores. Journal of the Minerals, Metals & Materials Society, August, 51–56

    Google Scholar 

  5. Dutrizac J.E. (1992) The leaching of sulphide minerals in chloride media. Hydrometallurgy, 29, 1–45

    Article  Google Scholar 

  6. Zhou X., Li J., Bodily DM. and Wadsworth M.E. (1993) Transpassive oxidation of pyrite. Journal of the Electrochemical Society, 140(7), 1927–1935

    Article  Google Scholar 

  7. Beattie M.J. and Poling G.W. (1987) A study of the surface oxidation of arsenopyrite using cyclic voltammetry. International Journal of Mineral Processing, 20, 87–108

    Article  Google Scholar 

  8. Collins M.J., Berezowski R.N. and Vardilt W.D. (1993) The Lihir gold project: pressure oxidation process development, in Milton Wadsworth International Symposium on Hydrometallurgy, (eds.J. Hiskey and G. Warren) SME-AIME, Littleton, Co, 1993, pp. 611–627

    Google Scholar 

  9. Sanchez V.M. and Hiskey J.B. (1991) Electrochemical behaviour of arsenopyrite in alkaline media. Minerals and Metallurgical Processing, February, 1–6

    Google Scholar 

  10. Hanlen Y and Guangxiang X. (1993) A pre-treatment of pyritic gold concentrate with catalytic oxidation acid leach, in Milton Wadsworth International Symposium on Hydrometallurgy, (eds. J. Hiskey and G. Warren) SME-AIME, Littleton, Co, 1993, pp. 365–375

    Google Scholar 

  11. Qi PH. and Hiskey J.B. (1991) Dissolution Kinetics of gold in iodide solutions. Hydrometallurgy, 27(1), 47–62

    Article  Google Scholar 

  12. Han K. N. and Meng X. (1992) Extraction of gold/silver from refractory ores using ammoniacal solutions, in Proceedings of Randol Gold Forum, Randol International, 1992, pp. 213–218

    Google Scholar 

  13. Lawrence R.W. (1990) Microbial Mineral Recovery. McGraw-Hill Publishing Co., New York, USA

    Google Scholar 

  14. Koslides T. and Ciminelli VS. (1992) Pressure oxidation of arsenopyrite and pyrite in alkaline solutions. Hydrometallurgy, 30, 87–106

    Article  Google Scholar 

  15. Kumar R., Das S., Ray R.K. and Biswas A.K. (1993) Leaching of a pure and cobalt bearing goethites in sulphurous acid: kinetics and mechanisms. Hydrometallurgy, 32, 39–59

    Article  Google Scholar 

  16. Hamilton I.C. and Woods R. (1981) An investigation of surface oxidation of pyrite and pyrrotite by linear potential sweep voltammetry. Journal of Electroanalytical Chemistry, 118, 327–343

    Article  Google Scholar 

  17. Abrantes L.M. and Araújo L.V. (1993) An electrochemical study of the behaviour of chalcopyrite in acid and alkaline solutions. Portugaliae Electrochimica Acta, 11, 67–71

    Google Scholar 

  18. Abrantes L.M. and Araújo L.V. (1993) Anodic dissolution of chalcopyrite concentrate in aqueous chloride solutions, in Milton Wadsworth International Symposium on Hydrometallurgy, (eds. J. Hiskey and G. Warren) SME-AIME, Littleton, Co, 1993, pp. 957–969

    Google Scholar 

  19. Abrantes L.M., Silva L.M. and Costa M.C. (1992) A hidrometalurgia na recuperaçãte do ouro. Boletim de Minas, 29(4), 367–374

    Google Scholar 

  20. Santos L.S., Tavares P.F., Costa M.C. and Abrantes L.M. (1993) Recuperação de ouro de resíduos piriticos, in Proceedings of the Symposium on the Polymetallic Sulphides on the Iberian Pyrite Belt, (eds Apimineral), Portugal, 1993, pp. 491–509

    Google Scholar 

  21. Paiva A.P. and Abrantes L.M. (1993) Solvent extraction on silver recovery +from chloride leach solutions, in Proceedings of the 4th Extraction and Processing Division Congress, 122nd TMS Annual Meeting, (ed. J. P. Hager), 1993, pp. 157–168

    Google Scholar 

  22. American Cyanamid Company (1985) Cyanex 471X Extractant. Technical Information on Cyanex 471X extractant

    Google Scholar 

  23. Gardner J.R. and Woods R. (1979) An electrochemical investigation of the natural flotability of chalcopyrite. International Journal of Mineral Processing, 6, 1–16

    Article  Google Scholar 

  24. Pretzker M.D. and Yoon R.H. (1988) A voltammetric study of galena immersed in acetate solution at pH 4.6. Journal of Applied Electrochemistry, 18,323–332

    Article  Google Scholar 

  25. Paiva A.P. and Abrantes L.M. (1993) Molecular features in the solvent extraction of silver, in Proceedings of the International Solvent Extraction Conference ISEC, (eds. D. H. Logsdail and M. J. Slater) 3, 1993, pp. 1377–1382

    Google Scholar 

  26. Kin H.K., Wu X.J. and Rao P.D. (1991) The electrowinning of copper from a cupric chloride solution. Journal of the Minerals, Metals & Materials Society, August, 60–65

    Google Scholar 

  27. Kuz’mina N.N. and Sougina O.A. (1963) Properties of the thiourea complexes of silver formed during amperometric titration. Zhurnal Analiticheskoy Khimii, 18,323–328

    Google Scholar 

  28. Huyhua J.C., Zegarra C.R. and Gundiler I.H. (1988) A comparative study of oxidants on gold and silver dissolution in acidic thiourea solutions, in Precious Metals ′89, (eds. M. C. Jha and S. D. Hill), 1988, pp. 287–303

    Google Scholar 

  29. Abrantes L.M. and Costa M.C. (1994) Electrooxidation as a pretreatment for gold recovery. Abstract accepted by the 5th Extraction and Processing Division Congress, 123rd TMS Annual Meeting, 1994, S. Francisco, USA.

    Google Scholar 

  30. Kirk D.W., Gehring R. and Graydon W.F. (1987) Electrochemical leaching of a silver arsenopyrite ore. Hydrometallurgy, 17, 155–162

    Article  Google Scholar 

  31. Cabra G. (1984) A kinetic study of the leaching of gold from pyrite concentrate using acidified thiourea, in Precious Metals: Mining, Extraction and Processing, (eds V. Kudryk, D. A. Corrigan and W. W. Liang) TMS-AIME, 1984, pp. 145–172

    Google Scholar 

  32. Mossoulos L., Potamianos N. and Kontopoulos A. (1984) Recovery of gold and silver from arseniferous pyrite cinders by acidic thiourea leaching, in Precious Metals: Mining, Extraction and Processing, (eds V. Kudryk, D. A. Corrigan and W. W. Liang) TMS-AIME, 1984, pp. 323–335

    Google Scholar 

  33. Abe Y., Flett D.S. (1990) Solvent extraction of silver from chloride solutions by Cyanex 47IX, in Proceedings of the International Solvent Extraction Conference ISEC, (ed.T. Sekine) 1990, pp. 1127–1132

    Google Scholar 

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Authors and Affiliations

  1. Departamento de Química, Faculdade de Ciências de Lisboa, Lisbon, Portugal

    L. M. Abrantes, M. C. Costa & A. P. Paiva

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  1. L. M. Abrantes
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  2. M. C. Costa
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  3. A. P. Paiva
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© 1994 Springer Science+Business Media Dordrecht

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Abrantes, L.M., Costa, M.C., Paiva, A.P. (1994). Pretreatment by electrolytic or oxidative leaching for recovery of gold and silver from refractory sulphide concentrates. In: Hydrometallurgy ’94. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1214-7_26

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  • DOI: https://doi.org/10.1007/978-94-011-1214-7_26

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-4532-2

  • Online ISBN: 978-94-011-1214-7

  • eBook Packages: Springer Book Archive

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