Mathematical modeling of thermophilic bioleaching of chalcopyrite

Minerals Engineering

Volumn 22, Issue 11, 2009, Pages 951-960

  Vilcáez, Javier ^a   Inoue, Chihiro ^a  

^a TOHOKU UNIVERSITY   (Japan)

Author keywords

Bioleaching; Modelling; Reaction kinetics; Sulphide ores

Indexed keywords

CHALCOPYRITE CONCENTRATE; CONSTANT TEMPERATURE; COPPER EXTRACTION; DIRECT INTERACTIONS; INITIAL PH; LOW RATES; MATHEMATICAL MODELING; MIXED POTENTIAL; MODELLING; SULPHIDE ORES; TOTAL IRONS;

ASSOCIATION REACTIONS; BIOLEACHING; FREE RADICAL POLYMERIZATION; MINERALS; REACTION KINETICS;

COPPER COMPOUNDS;

EID: 67650753858     PISSN: 08926875     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.mineng.2009.03.001     Document Type: Article

References (16)

1. Bouffard SC., Rivera-Vazquez B.F., and Dixon D.G. Leaching kinetics and stoichiometry of pyrite oxidation from a pyrite-marcasite concentrate in acid ferric sulfate media. Hydrometallurgy 84 (2006) 225-238
2. Dutrizac J.E. The dissolution of chalcopyrite in ferric sulphate and ferric chloride media. Metallurgical Transactions B 12B (1981) 371-378
3. Haddadin J., Dagot C., and Fick M. Models of bacterial leaching. Enzyme and Microbial Technology 17 (1995) 290-305
4. Hiroyoshi N., Miki H., Hirajima T., and Tsunekawa M. Enhancement of chalcopyrite leaching by ferrous ions in acidic ferric sulphate solution. Hydrometallurgy 60 (2001) 185-197
5. Holmes P.R., Fowler T.A., and Crundwell F.K. The mechanism of bacterial action in the leaching of pyrite by Thiobacillus ferrooxidans. Journal of the Electrochemical Society 146 8 (1999) 2906-2912
6. Kiss L. Basic principles of the kinetics of electrode processes. Kinetics of Electrochemical Metal Dissolution (1988), Elsevier Press, Amsterdan-Oxford-New York-Tokyo 48-203
7. 2+ oxidation by Thiobacillus ferrooxidans. Applied Microbiology and Biotechnology 33 (1990) 524-528
8. Majima H. Importance of fundamental study in hydrometallurgy. Metallurgical Transactions B 26B (1995) 1109-1122
9. Nemati M., and Harrison S.T.L. A comparative study on thermophilic and mesophilic biooxidation of ferrous iron. Minerals Engineering 13 1 (2000) 19-24
10. Nicol, M.J., Lázaro, I., 2003. The role of non-oxidative processes in the leaching of chalcopyrite. In: Riveros P.A., et al. (Ed.), Copper 2003, Hydrometallurgy of Copper, vol. VI. Santiago-Chile, pp. 367-381.
11. Sandström A., Shchukarev A., and Paul J. XPS characterization of chalcopyrite chemically and bio-leached at high and low redox potential. Minerals Engineering 18 (2005) 505-515
12. Shivvers D.W., and Brock T.D. Oxidation of elemental sulfur by Sulfolobus acidocaldarius. Journal of Bacteriology 114 2 (1973) 706-710
13. Vilcáez J., Suto K., and Inoue C. Response of thermophiles to the simultaneous addition of sulfur and ferric ion to enhance the bioleaching of chalcopyrite. Minerals Engineering 21 15 (2008) 1063-1071
14. Vilcáez J., Suto K., and Inoue C. Bioleaching of chalcopyrite with thermophiles: Temperature-pH-ORP dependence. International Journal of Mineral Processing 88 1-2 (2008) 37-44
15. Vilcáez J., Yamada R., and Inoue C. Effect of pH reduction and ferric ion addition on the leaching of chalcopyrite at thermophilic temperatures. Hydrometallurgy 96 1-2 (2009) 62-71
16. Viramontes-Gamboa G., Rivera-Vasquez B.F., and Dixon D.G. The active-passive behavior of chalcopyrite comparative study between electrochemical and leaching. Journal of the Electrochemical Society 154 6 (2007) C299