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Journal of the Southern African Institute of Mining and Metallurgy

versão On-line ISSN 2411-9717

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

 

JOURNAL PAPER

 

Copper electrowinning: Theoretical and practical design

 

 

N.T. Beukes; J. Badenhorst

TWP Matomo Process Plant, South Africa

 

 


SYNOPSIS

An engineering house's perspective of required inputs in designing a copper electrowinning tank house and ancillary equipment calls for both understanding of the key fundamental controlling mechanisms and the practical requirements to optimize cost, schedule and product quality. For direct or post solvent extraction copper electrowinning design, key theoretical considerations include current density and efficiency, electrolyte ion concentrations, cell voltages and electrode overpotentials, physical cell dimensions, cell flow rates and electrode face velocities, and electrolyte temperature. Practical considerations for optimal project goals are location of plant, layout of tank house and ancillary equipment, elevations, type of cell furniture, required cathode quality, number and type of cells, material of construction of cells, structure and interconnecting equipment, production cycles, anode and cathode material of construction and dimensions, cathode stripping philosophy, plating aids, acid mist management, piping layouts, standard electrical equipment sizes, electrolyte filtration, impurity concentrations, bus bar and rectifier/transformer design, electrical isolation protection, crane management, sampling and quality control management, staffing skills and client expectations. All of the above are required to produce an engineered product that can be designed easily, constructed quickly and operated with flexibility.


 

 

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References

1. HAYES, P.C. Process Principles in Mineral and Materials Production, Hayes Publishing Co., 1983.         [ Links ]

2. PETRUCCI, R.H. and HARWOOD, W.S. General Chemistry Principles and Modern Applications, Prentice Hall International, Inc., 1993.         [ Links ]

3. LORENZEN, L. Mineral Processing Class Notes, Electrochemical Reactor Design, University of Stellenbosch, 2000.         [ Links ]

4. INCOPERA, F.P. and DEWITT, D.P. Fundamentals of Heat and Mass Transfer, John Wiley and Sons, Inc., 1996, (4th Edition), Chap 6, Chap 9.         [ Links ]

5. PERRY, R.H. and GREEN, D.W. Perry's Chemical Engineers' Handbook, McGraw-Hill, 1997.         [ Links ]

6. JACKSON, E. Hydrometallurgical Extraction and Reclamation, Ellis Horwood Limited, 1986, Chap 5.         [ Links ]

7. WANG, J. Analytical Electrochemistry, John Wiley and Sons, Inc., 2001, (2nd Edition).         [ Links ]

8. ZANELLO, P. Inorganic Electrochemistry: Theory, Practice and Application, The Royal Society of Chemistry, 2003.         [ Links ]

9. BRETT, C.M.A. and BRETT, A.M.O. Electrochemistry Principles, Methods, and Applications, Oxford University Press, 1993.         [ Links ]

10. MACKINNON, D.J. and LAKSHMANAN, V.I. Recent Advances in Copper Electrowinning, Mineral Research Program, Mineral Research Laboratories, CANMET Report 76-10, 1976.         [ Links ]

11. ANDERSEN, A.K. and BALBERYSZSKI, T. Electrowinning of Copper at High Current Densities with the CCS Cell, The Metallurgical Society of AIME, TMS Paper Selection, Paper A68-17, 1968.         [ Links ]

12. ESCOBAR, V., TREASURE, T., and DIXON, R.E. High Current Density EMEW®Copper Electrowinning, Electrometals Technologies Ltd. Official Website. http://www.electrometals.co.au.         [ Links ]

13. ROUX, E., GNOINSKI, J., EWART, I., AND DREISINGER, D. Cu-Removal From the Skorpion Circuit Using EMEW®Technology, The South African Institute of Mining and Metallurgy, The Fourth Southern African Conference on Base Metals, 2007.         [ Links ]

14. Short course on Electrochemistry, Electrochemical Engineering and Electrometallurgy: Module on Thermodaynamics and Kinetics, University of the Witwatersrand, Johannesburg, 2005.         [ Links ]

15. SANDENBERGH, R. University of Pretoria Electrochemistry class notes, 2007.         [ Links ]

16. HOULACHI, G.E., EDWARDS, J.D., and ROBINSON, T.G. Cu 2007, vol. V, Copper Electrowinning and Elecrorefining, Toronto, Metsoc Publication, August 2007.         [ Links ]

17. Short course on Electrochemistry, Electrochemical Engineering and Electrometallurgy: Module on Applications of Fundamentals to Electrowinning and Electrorefining of Metals. University of the Witwatersrand, Johannesburg, 2005.         [ Links ]

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