Leaching kinetics and stoichiometry of pyrite oxidation from a pyrite-marcasite concentrate in acid ferric sulfate media

Hydrometallurgy

Volumn 84, Issue 3-4, 2006, Pages 225-238

  Bouffard, Sylvie C ^a   Rivera Vasquez, Berny F ^a   Dixon, David G ^a  

^a UNIVERSITY OF BRITISH COLUMBIA   (Canada)

Author keywords

Activation energy; Ferric leaching; Kinetics; Mixed potential theory; Modeling; Permanganate; Potential control; Pyrite; Sulfate yield

Indexed keywords

ACTIVATION ENERGY; LEACHING; MATHEMATICAL MODELS; OXIDATION; REACTION KINETICS; STOICHIOMETRY;

FERRIC LEACHING; MIXED POTENTIAL THEORY; PERMANGANATE; POTENTIAL CONTROL; SULFATE YIELD;

PYRITES;

EID: 33749251131     PISSN: 0304386X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.hydromet.2006.05.008     Document Type: Article

References (31)

1. Bailey L.K., and Peters E. Decomposition of pyrite in acids by pressure leaching and anodization: the case for an electrochemical mechanism. Can. Metall. Q. 15 (1979) 333-344
2. Biegler T., and Swift D.A. Anodic behaviour of pyrite in acid solutions. Electrochim. Acta 24 (1979) 415-420
3. Bolorunduro, S.A., 1999. Kinetics of leaching of chalcocite in acid ferric sulfate media: chemical and bacterial leaching. M.A.Sc. thesis. The University of British Columbia, Canada.
4. Boogerd F.C., van den Beemd C., Stoelwinder T., Bos P., and Kuenen J.G. Relative contributions of biological and chemical reactions to the overall rate of pyrite oxidation at temperatures between 30 °C and 70 °C. Biotechnol. Bioeng. 38 (1991) 109-115
5. Boon, M., 1996. Theoretical and experimental methods in the modeling of bio-oxidation kinetics of sulfide minerals. Ph.D. thesis. Delft University of Technology, The Netherlands.
6. Boon M., and Heijnen J.J. Chemical oxidation kinetics of pyrite in bioleaching processes. Hydrometallurgy 48 (1998) 27-41
7. Boon M., Brasser H.J., Hansford G.S., and Heijnen J.J. Comparison of the oxidation kinetics of different pyrites in the presence of Thiobacillus ferrooxidans and Leptospirillum ferrooxidans. Hydrometallurgy 53 (1999) 57-72
8. Carnahan B., Luther H.A., and Wilkes J.O. Applied Numerical Methods (1969), Wiley, New York
9. 2. J. Colloid Interface Sci. 75 (1980) 357-372
10. Dutrizac J.E. Elemental sulfur formation during the ferric sulfate leaching of chalcopyrite. Can. Metall. Q. 28 (1989) 337-344
11. Fernandez P.G., Linge H.G., and Willing M.J. Oxidation of arsenopyrite (FeAsS) in acid Part II: stoichiometry and reaction scheme. J. Appl. Electrochem. 26 (1996) 585-591
12. Garrels R.M., and Thompson M.E. Oxidation of pyrite by iron sulfate solutions. Am. J. Sci. 258-A (1960) 57-67
13. Goldhaber M.B. Experimental study of metastable sulfur oxyanion formation during pyrite oxidation. Am. J. Sci. 283 (1983) 193-217
14. Hiskey J.B., and Schlitt W.J. Aqueous oxidation of pyrite. In: Hiskey J.B., and Schlitt W.J. (Eds). Interfacing Technologies in Solution Mining (1982), SME, Littleton, CO 55-74
15. Holmes P.R., and Crundwell F.K. The kinetics of the oxidation of pyrite by ferric ions and dissolved oxygen. Geochim. Cosmochim. Acta 64 (2000) 263-274
16. Holmes P.R., Fowler T.A., and Crundwell F.K. The mechanism of bacterial action in the leaching of pyrite by Thiobacillus ferrooxidans. J. Electrochem. Soc. 146 (1999) 2906-2912
17. Kametani H., and Aoki A. Effect of suspension potential on the oxidation rate of copper concentrate in a sulfuric acid solution. Metall. Trans. 16B (1985) 695-705
18. Kawakami K., Sato J., Kusunoki K., Kusakabe K., and Morooka S. Kinetic study of oxidation of pyrite slurry by ferric chloride. Ind. Eng. Chem. Res. 27 (1988) 571-576
19. 2) in acidic aqueous electrolytes I. In: Woods R., Doyle F.M., and Richardson P. (Eds). Proc. (IV) Int. Symp. on Electrochemistry in Mineral and Metal Processing vol. 96-6 (1996), The Electrochemical Society, London 131-142
20. King W.E., and Perlmutter D.D. Pyrite oxidation in aqueous ferric chloride. AIChE J. 23 (1977) 679-685
21. Mathews C.T., and Robins R.G. The oxidation of iron disulphide by ferric sulphate. Aust. Chem. Eng. (1972) 21-25 (August issue)
22. May N., Ralph D.E., and Hansford G.S. Dynamic redox potential measurement for determining the ferric leach kinetics of pyrite. Min. Eng. 10 (1997) 1279-1290
23. McKibben M.A., and Barnes H.L. Oxidation of pyrite in low temperature acidic solutions: rate laws and surface textures. Geochim. Cosmochim. Acta 50 (1986) 1509-1520
24. 2). J. Electrochem. Soc. 135 (1988) 2502-2509
25. Nayak B.B., Paramguru R.K., and Ray H.S. Studies on initial dissolution kinetics from polarization data, part III: pyrite in ferric sulphate. Trans. Indian Inst. Met. 48 (1995) 35-41
26. Nicol M.J. The role of electrochemistry in hydrometallurgy. In: Hiskey J.B., and Warren G.W. (Eds). Hydrometallurgy; Fundamentals, Technology and Innovation (1993), SME, Littleton, CO 43-62
27. Smith E.E., and Shumate K.S. The Sulfide to Sulfate Reaction Mechanism. Water Pollution Control Research Series (1970), Ohio State University Research Foundation
28. Smith E.E., Svanks K., and Shumate K.S. Sulfide to sulfate reaction studies. Preprints of the Second Symposium on Coal Mine Drainage Research, Pittsburgh, PA (1968)
29. Wiersma C.L., and Rimstidt J.D. Rates of reaction of pyrite and marcasite with ferric iron at pH 2. Geochim. Cosmochim. Acta 48 (1984) 85-92
30. Williamson M.A., and Rimstidt J.D. The kinetics and electrochemical rate-determining step of aqueous pyrite oxidation. Geochim. Cosmochim. Acta 58 (1994) 5443-5454
31. Zheng C.Q., Allen C.C., and Bautista R.G. Kinetic study of the oxidation of pyrite in aqueous ferric sulfate. Ind. Eng. Process Des. Dev. 25 (1986) 308-317