SciELO - Scientific Electronic Library Online

vol.109 número6Oxidative precipitation of Mn(II) from cobalt leach solutions using dilute SO2/air gas mixture índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados



Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Em processo de indexaçãoSimilares em Google


Journal of the Southern African Institute of Mining and Metallurgy

versão On-line ISSN 2411-9717
versão impressa ISSN 0038-223X

J. S. Afr. Inst. Min. Metall. vol.109 no.6 Johannesburg Jun. 2009




Solvent extraction design consideration for the Tati Activox® plant



E. RoblesI; I. CronjeI; G. NelII

IHatch Africa (Pty) Ltd, South Africa
IINorilsk Nickel Africa (Pty) Ltd, South Africa




The Tati Activox® Project (TA®P) is the first step towards the implementation of the Norilsk Nickel Activox®process. The ultra fine grinding (UFG) and autoclave pressure leach process conditions are the heart of the Activox®patent. Low grade base metal sulphide concentrates are leached in the process to recover the base metals and to produce LME grade nickel and copper cathodes and cobalt carbonates. The downstream processing of the metal-containing liquor produced by this process includes solvent extraction circuits to extract and concentrate metal-rich solutions, before the various final products are obtained.
This paper gives an overview of many of the relevant design aspects taken into consideration in the design of the Tati Activox®solvent extraction circuits. It addresses key design elements related to leach process conditions such as scaling, materials selection for corrosive solutions, pH control, crud formation and treatment, multiple SX trains designed to prevent organic cross-contamination, and design aspects related to the mitigation of fire risks.



“Full text available only in PDF format”




1. PALMER, C.M. and JOHNSON, G.D. The Activox® Process: Growing significance in the nickel industry. Journal of Minerals, Metals and Materials Society, vol. 57, no. 7, July 2005, pp. 40-47.         [ Links ]

2. MILLER, G. Design of Mixer Settlers to Maximise Performance, Proceedings from ALTA 2006 Copper Conference, 10th Copper Event, ALTA Metallurgical Services, Melbourne, Australia.         [ Links ]

3. DU PREEZ, R., NEL, G., KOTZE, M., DONEGAN, S., and MASSINA, H. Solvent Extraction test work to evaluate a Versatic 10/NicksynTM Synergistic system for Nickel-Calcium separation, Proceedings of The Fourth South African Base Metals Conference, Africa's base metals resurgence. Symposium Series S47, South African Institute of Mining and Metallurgy, 2007, pp. 193-210.         [ Links ]

4. GUNNEWIEK, L.H., OSHINOWO, L., PLIKAS, T., and HAYWOOD, R. Using CFD in the Design and Scale-up of Hydrometallurgical Processes, 3rd International Conference on CFD in the Minerals and Process Industries, CSIRO, Melbourne, Australia, 2003.         [ Links ]

5. SCHWARZ, M.P., LANE, G., NIKOLOV, J., YANG, W., BUJALSKI, J.M., SOLNORDAL, C.B., and HOUCHIN, M. Development of a Design Capability for SX Contactors Using Multi-Phase CFD and Experimental Modelling, Proceedings ALTA 2007 Copper Conference, 11th Copper Event, ALTA Metallurgical Services, Melbourne, Australia.         [ Links ]

6. ROBLES, E., CRONJE, I., POULTER, S., and HAYWOOD, R. Aspects of the Design of SX Plants for the Modern Hydrometallurgical Refinery, Proceedings of the International Solvent Extraction Conference ISEC 2008, Tucson, Arizona.         [ Links ]

7. GIRALICO, M., GIGAS, B., and PRESTON, M. Advanced Mixer Settler Designs that will Optimize Tomorrow's Large Flow Production Requirements, Proceedings Hydrometallurgy 2003-Fifth International Conference in Honour of Professor Ian Ritchie, vol. 1, Leaching and Solution Purification. TMS, 2003.         [ Links ]

8. BACON, G. and MIHAYLOV, I. Solvent Extraction as an Enabling Technology in the Nickel Industry, Proceedings of the International Solvent Extraction Conference ISEC 2002, K.C. Sole, P.M. Cole, J.S. Preston, and D.J. Robinson, (eds.), South African Institute of Mining and Metallurgy, Johannesburg. pp. 853-863.         [ Links ]

9. HAIG, P., KOENEN, T., and MAXWELL, J. Electrostatic Hazards in Solvent Extraction Plants, ALTA SX/EW World Summit, Perth, ALTA Metallurgical Services, Melbourne, Australia, 2003.         [ Links ]

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons