Abstract
A set of (95) equations forming a dynamic, nonlinear model of an industrial pilot-plant scale zinc electrowinning cell fed with high purity electrolyte is presented. Only the solution of the steady-state model is considered in this paper. Values for unknown model parameters have either been obtained from the literature or else estimated using experimental data taken from the pilot-plant cell. Sensitivity studies showed that uncertainties in the temperature dependency of the zinc and hydrogen reaction exchange current densities and the exchange coefficient for the hydrogen reaction have a major effect on the model predictions. Excellent agreement between predicted and experimental results was obtained, provided that cathodic mass transfer effects were included in the model. Both parameter estimation and solution of the steady-state model were carried out using the SPEEDUP flowsheeting package.
Similar content being viewed by others
References
A. C. Scott, R. M. Pitblado, G. W. Barton and A. R. Ault,J. Appl. Electrochem. 18 (1988) 120–7.
F. Laplicque and A. Storck,ibid.15 (1985) 925–35.
W. W. Harvey,Hydrometallurgy 2 (1976) 35–50.
T. W. Chapman, ‘Hydrometallurgical Process Fundamentals’, Plenum Press, New York (1984) pp. 599–616.
A. W. Bryson, ‘Modelling the Performance of Electro-winning Cells’, Hydrometallurgy 81, Society of Chemical Industry Symposium, UMIST, Manchester (1981).
A. C. Scott, The Development and Application of a Mathematical Model for the Zinc Electrowinning Process’, Ph.D. Thesis, University of Sydney, Australia (1988).
J. M. Coulson and J. F. Richardson, ‘Chemical Engineering’, Vol. 1. 3rd ed., Pergamon Press, Oxford (1977).
R. H. Perry and C. H. Chilton, ‘Chemical Engineers Hand-book’, 5th ed., McGraw Hill, New York (1973).
A. J. Bard and L. R. Faulkner, ‘Electrochemical Methods’, J. Wiley & Sons, New York (1980).
D. J. Pickett, ‘Electrochemical Reactor Design’, Elsevier Scientific, Amsterdam (1979).
H. V. Tartar, W. W. Newschwander and A. T. Ness,J. Am. Chem. Soc. 63 (1941) 28–36.
T. Hurlen and T. R. Breivik,Acta Chem Scand. A32 (1978) 447–53.
A. G. Turnbull and M. W. Wadsley, Extractive Metallurgy Symposium, Australian Institute of Mining Metallurgy, Melbourne (1984) p. 79.
M. Whitfield,Geochimica et Cosmochimica Acta 39 (1975) 1545–57.
K. S. Pitzer and J. J. Kim,J. Am. Chem. Soc. 96 (1974) 5701–7.
D. Pletcher, ‘Industrial Electrochemistry’, Chapman & Hall, London (1982).
T. Hurlen,Electrochim. Acta 7 (1962) 653–68.
L. J. Janssen,ibid.23 (1978) 81–6.
D. N. Bennion, ‘Modeling and Reactor Simulation’, AlChE Symposium Series No. 229,79 (1983) pp. 25–36.
H. Majima, E. Peters, Y. Awakura and S. K. Park,Met. Trans. B. 18B (1987) 41–7.
A. L. Rotenyan, N. P. Fedotov and L. U. Sok,Zh. Fiz. Khim. 31 (1957) 1295.
S. Trasatti,J. Electroanal. Chem. 39 (1972) 163–84.
D. A. Payne and A. J. Bard,J. Electrochem. Soc. 119 (1972) 1665–74.
H. Matsuda and Y. Ayabe,Elektrochem. 63 (1959) 1164.
A. G. Stromberg and L. N. Popova,Elektrokhimiya 4 (1968) 1147.
C. C. Pantelides,Comp. Chem. Eng. 12 (1988) 745–755.
R. Parsons, Personal communication (1986).
A. J. Bard, Personal communication (1986).
L. J. Janssen and J. G. Hoogland,Electrochim. Acta 15 (1970) 1013–23.
H. Vogt,ibid.23 (1978) 203–5.
F. Ajersch, D. Mathieu and D. L. Piron,Can. Met. Quarterly 24 (1985) 53–63.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Barton, G.W., Scott, A.C. A validated mathematical model for a zinc electrowinning cell. J Appl Electrochem 22, 104–115 (1992). https://doi.org/10.1007/BF01023811
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01023811