Copper catalysed oxidation of thiosulfate by oxygen in gold leach solutions

Minerals Engineering

Volumn 16, Issue 1, 2003, Pages 21-30

  Breuer, P L ^a   Jeffrey, M I ^a  

^a MONASH UNIVERSITY   (Australia)

Author keywords

Gold ores; Leaching; Oxidation

Indexed keywords

COPPER; FREE RADICALS; LEACHING; NEGATIVE IONS; OXIDATION; OXYGEN; REDUCTION; SOLUTIONS;

HYDROXIDE RADICALS; LIXIVIANTS; SUPEROXIDE RADICALS; THIOSULFATE;

GOLD ORE TREATMENT;

EID: 0037278028     PISSN: 08926875     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0892-6875(02)00287-X     Document Type: Article

References (17)

1. Breuer, P.L., Jeffrey, M.I., 2002. An electrochemical study of gold leaching in thiosulfate solutions containing copper and ammonia. Hydrometallurgy 65 (2-3), 145-157.
2. Breuer, P.L., Jeffrey, M.I., submitted for publication. The reduction of copper(II) and the oxidation of thiosulfate and oxysulfur anions in gold leaching solutions.
3. Breuer, P.L., Jeffrey, M.I., Tan, E.H.K., Bott, A.W., in press. The electrochemical quartz crystal microbalance as a sensor in the gold thiosulfate leaching process. Journal of Applied Electrochemistry.
4. Byerley, J.J., Fouda, S.A., Rempel, G.L., 1973a. Kinetics and mechanism of the oxidation of thiosulfate ions by copper(II) ions in aqueous ammonia solution. Journal of the Chemical Society, Dalton Transactions, 889-893.
5. Byerley, J.J., Fouda, S.A., Rempel, G.L., 1973b. The oxidation of thiosulfate in aqueous ammonia by copper(II) oxygen complexes. Inorganic Nuclear Chemistry Letters 9, 879-883.
6. Byerley, J.J., Fouda, S.A., Rempel, G.L., 1975. Activation of copper(II) amine complexes by molecular oxygen for the oxidation of thiosulfate ions. Journal of the Chemical Society, Dalton Transactions, 1329-1338.
7. Hathaway, B.J., Tomlinson, A.A.G., 1970. Copper(II) ammonia complexes. Coordination Chemistry Reviews 5, 1-43.
8. 2+ in alkaline solution. Inorganic Chemistry 27, 2489-2496.
9. Rolia, E., Chakrabarti, C.L., 1982. Kinetics of decomposition of tetrathionate, trithionate and thiosulfate in alkaline media. Environmental Science and Technology 16 (12), 852-857.
10. Simandi, L.I., 1992. Catalytic Activation of Dioxygen by Metal Complexes. Kluwer Academic Publishers, Dordrecht.
11. Skorobogaty, A., Smith, T.D., 1984. Coordination and redox chemistry of some macromolecular systems. Coordination Chemistry Reviews 53, 22-226.
12. Smith, R.M., Martell, A.E., 1975. Critical Stability Constants. In: Amines, vol. 2. Plenum Press, New York.
13. Smith, R.M., Martell, A.E., 1976. Critical Stability Constants. In: Inorganic Complexes, vol. 4. Plenum Press, New York.
14. Wan, R.Y., 1997. Importance of solution chemistry for thiosulphate leaching of gold. In: World Gold '97. The Australian Institute of Mining and Metallurgy, Carlton, Vic. pp. 159-162.
15. Weast, R.C. (Ed.), 1974-75. Handbook of Chemistry and Physics. CRC Press, Cleveland, Ohio.
16. Zuberbühler, A.D., 1981. Interaction of copper(I) complexes with dioxygen. In: Metal Ions in Biological Systems-Properties of Copper. pp. 325-368.
17. Zuberbühler, A.D., 1983. Copper(I), dioxygen, and catalysis. In: Zubieta, J. (Ed.), Copper Coordination Chemistry: Biochemical and Inorganic Prospectives. Adenine Press, New York, pp. 237-258.