Kinetics of copper dissolution from sulfidized chalcopyrite at high pressures in H2SO4-O2

Hydrometallurgy

Volumn 91, Issue 1-4, 2008, Pages 113-120

  Padilla, R ^a   Pavez, P ^a   Ruiz, M C ^a  

^a UNIVERSITY OF CONCEPCIÓN   (Chile)

Author keywords

Autoclave; Chalcopyrite sulfidation; Covellite; Pressure leaching

Indexed keywords

ACTIVATION ENERGY; COPPER; DISSOLUTION; HIGH PRESSURE EFFECTS; KINETICS; LEACHING; PARTIAL PRESSURE;

CHALCOPYRITE SULFIDATION; COVELLITES; PRESSURE LEACHING;

PYRITES;

EID: 40649101628     PISSN: 0304386X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.hydromet.2007.12.003     Document Type: Article

References (16)

1. Bailey L.K., and Peters E. Decomposition of pyrite in acids by pressure leaching and anodization: the case for an electrochemical mechanism. Canadian Metallurgical Quarterly 15 4 (1976) 333-344
2. Cheng C.H., and Lawson F. The kinetics of leaching covellite in acidic oxygenated sulphate-chloride solutions. Hydrometallurgy 27 (1991) 269-284
3. Dutrizac J.E. Ferric ion leaching of chalcopyrite from different localities. Metallurgical Transactions 13B (1982) 303-309
4. Gary J.H., McEwen R.B., and Samis A.N. The Quebrada Blanca copper project. CIM Bulletin 87 985 (1994) 35-45
5. Hackl R.P., Dreisinger D.B., Peters E., and King J.A. Passivation of chalcopyrite during oxidative leaching in sulphate media. Hydrometallurgy 39 1-3 (1995) 25-48
6. Jó M., Bustos S., Espejo R., Ruiz P., Rojas J., and Montealegre R. Bacterial thin layer leaching of copper sulfide ores. Proceedings of the CIM-IIMCH-TMS Int. Conference: Copper 91-Cobre 91, Otawa, Canada, CIMM (1991) 87-97
7. Lotens J.P., and Wesker E. The behaviour of sulphur in the oxidative leaching of sulphidic minerals. Hydrometallurgy 18 (1987) 39-54
8. Monhemius A.J. Hydrometallurgy-the clean solution for metal production? In: Clean Technologies for the Mining Industry. Proceedings of the III International Conference on Clean Technology for the Mining Industry, Santiago, Chile (1996) 13-24
9. Muñoz G. Codelco-Chile's corporate decontamination plant for its smelters. In: Clean Technologies for the Mining Industry. Proceedings of the III International Conference on Clean Technology for the Mining Industry, Santiago, Chile, May 1996 (1996) 53-64
10. Padilla R., Rodríguez M., and Ruiz M.C. Sulfidation of chalcopyrite with elemental sulfur. Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science 34B (2003) 15-23
11. Padilla R., Olivares E., Sohn H.Y., and Ruiz M.C. Kinetics of the sulfidation of chalcopyrite with gaseous sulfur. Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science 34B (2003) 61-68
12. 2. Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science 34B (2003) 153-159
13. Padilla R., Vega E., and Ruiz M.C. Pressure leaching of sulfidized chalcopyrite in sulfuric acid-oxygen media. Hydrometallurgy 86 (2007) 80-84
14. Richmond G. The Mount Gordon Copper Process. Proceedings of the International Colloquium on Hydrometallurgical Processing of Copper Sulfides (Hydro-Sulfides 2004), April 16-19, Santiago, Chile (2004) 75-88
15. Tromans D. Oxygen solubility in inorganic solutions: concentration, temperature and pressure effects. Hydrometallurgy 50 (1998) 279-296
16. Valenzuela A., Palacios J., Cordero D., and y Sánchez M. The Chilean copper industry: an Update. Metallurgical and materials processing: principles and technologies. In: Kongoli K., et al. (Ed). High Temperature Metals Production, TMS, Warrendale, PA, USA vol. II (2003) 239-252