Ferric leaching kinetics of arsenopyrite

Hydrometallurgy

Volumn 52, Issue 1, 1999, Pages 37-53

  Ruitenberg, R ^a   Hansford, G S ^b   Reuter, M A ^a   Breed, A W ^b  

^a DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

^b UNIVERSITY OF CAPE TOWN   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

IRON; LEACHING; MATHEMATICAL MODELS; PH; PROTONS; REACTION KINETICS; REDOX REACTIONS;

ARSENOPYRITE; BUTLER-VOLMER EQUATION;

PYRITES;

EID: 0032688385     PISSN: 0304386X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0304-386X(99)00007-9     Document Type: Article

References (27)

1. P.C. Van Aswegen, Commissioning and operation of bio-oxidation plants for the treatment of refractory gold ores, in: J.B. Hiskey, G.W. Warren (Eds.), Hydrometallurgy; Fundamentals, Technology and Innovations, Soc. Min. Metall. Explor. AIME, 1993. pp. 709-725.
2. Poulin R., Lawrence R.W. Economic and environmental niches of biohydrometallurgy. Minererals Engineering. 9(8):1996;799-810.
3. M. Boon, G.S. Hansford, J.J., Heijnen, The role of bacterial ferrous iron oxidation in the bioleaching of pyrite, in: T. Vargas, C.A. Jerez, J.V. Wiertz, H. Toledo (Eds.), Biohydrometallurgical Processing Vol. I, University of Chile, Santiago, 1996, pp. 153-163.
4. Verbaan B., Crundwell F.K. An electrochemical model for the leaching of a sphalerite concentrate. Hydrometallurgy. 16(3):1986;345-359.
5. Nagpal S., Dahlstrom D., Oolman T. A mathematical model for the bacterial oxidation of a sulfide ore concentrate. Biotechnology and Bioengineering. 43(5):1994;357-364.
6. M. Boon, 1996. Theoretical and experimental methods in the modelling of bio-oxidation kinetics of sulphide minerals, Ph.D thesis, Delft University of Technology, The Netherlands.
7. May N., Ralph D.E., Hansford G.S. Dynamic redox potential measurements for determining the ferric leach kinetics of pyrite. Minerals Engineering. 10(11):1997;1279-1290.
8. Garrels R.M., Thompson M.E. Oxidation of pyrite by iron sulphate solutions. American Journal of Science. 258A:1960;57-67.
9. C.T. Mathews, R.G. Robins, The oxidation of iron disulphide by ferric sulphate, Australian Chemical Engineering (August 1972) 21-25.
10. McKibben M.A., Barnes H.B. Oxidation of pyrite in low temperature acidic solutions: Rate laws and surface textures. Geochimica et Cosmochimica Acta. 50(7):1986;1509-1520.
11. Breed A.W., Harrison S.T.L., Hansford G.S. A preliminary investigation of the ferric leaching of a pyrite/arsenopyrite flotation concentrate. Minerals Engineering. 10(9):1997;1023-1030.
12. N. Iglesias, I. Palencia, F. Carranza, Removal of the refractoriness of a gold bearing pyrite-arsenopyrite ore by ferric sulphate leaching at low concentration, in: J.P. Hager (Ed.), EPD Congress 1993, The Minerals, Metals and Materials Society, 1993, pp. 99-115.
13. Zeman J., Mandl M., MrnustÍková P. Oxidation of arsenopyrite by Thiobacillus ferrooxidans detected by a mineral electrode. Biotechnology Techniques. 9(2):1995;111-116.
14. Randall E.W., Moon P., Gavin A.D.M. Dynamically extendable communications protocol for a serial input/output system. Journal of Microcomputer Applications. 16:1993;385-393.
15. A.D. Bailey, An assessment of oxygen availability, iron build-up and the relative significance of free and attached bacteria, as factors affecting bio-oxidation of refractory gold-bearing sulphides at high solids concentrations, PhD thesis, University of Cape Town, South Africa, 1993.
16. G.H. Jeffrey, J. Bassett, J. Mendham, R.C. Denney, Vogel's Textbook of quantitative chemical analysis, 5th edn., Longman, New York, 1989.
17. Iglesias N., Palencia I., Carranza F. Treatment of a gold bearing arsenopyrite concentrate by ferric sulphate leaching. Minerals Engineering. 9(3):1996;317-330.
18. J.G. Dunn, P.G. Fernandez, H.C. Hughes, H.G. Linge, Aqueous oxidation of arsenopyrite in acid, Final Proc. Austral. Inst. Min. Metall. Annual Conference, Australasian Institute of Mining and Metallurgy, Carlton, Australia, 1989, pp. 217-220.
19. A. MacDonald, G.S. Hansford, Zeta potential measurement of Thiobacillus ferrooxidans and Leptospirillum ferrooxidans in the presence of pyrite, Biotech SA '97, Rhodes University, Grahamstown, South Africa, 1997, p. 57.
20. Kostina G.M., Chernyak A.S. Electrochemical conditions for the oxidation of pyrite and arsenopyrite in alkaline and acid solutions. Zhurnal Prikladnoi Khimii. 49(7):1976;1534-1570.
21. Lázaro I., Cruz R., González I., Monroy M. Electrochemical oxidation of arsenopyrite in acidic media. International Journal of Minerals Processing. 50(1-2):1997;63-75.
22. H. Tributsch, Personal communication, 1997.
23. P.F. Jorge, G.P. Martins, Electrochemical and other aspects of indirect electrooxidation process for the leaching of molybdenite by hyperchloride, in: R.G. Bautista, R.J. Wesely, G.W. Warren (Eds.), Hydrometallurgical Reactor Design and Kinetics, The Metallurgical Society, 1986, pp. 263-292.
24. F.K. Crundwell, Kinetics and mechanism of the oxidative dissolution of a zinc sulphide concentrate in ferric sulphate solutions, Hydrometallurgy, 19 (2) 227-242.
25. 2). International Journal of Mineral Processing. 24(3-4):1988;185-202.
26. D. Pletcher, Industrial Electrochemistry, Chapman & Hall, New York, 1984.
27. J. Barrett, M.N. Hughes, G.I. Karavaiko, P.A. Spencer, Metal extraction by bacterial oxidation of minerals, Ellis Horwood, New York, 1993.