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Numerical simulation of the onset of mass transfer and convection in copper electrolysis subjected to a magnetic field

  • Special Issue of Journal Devoted to the Problems of Mass Transfer in the Electrochemical Systems
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Abstract

Numerical investigations have been performed in order to simulate the transient behaviour of copper electrolysis in a rectangular cell with vertical electrodes in a galvanostatic regime where the kinetics of the electrodes is controlled by charge-transfer. The transient behaviour observed for a binary electrolyte reproduces the temporal evolution of the concentration distribution measured in recent experimental work. Horizontal magnetic fields that vary linearly between the electrodes create Lorentz forces that either enhance or attenuate natural convection. The different time scales of natural convection and convection driven by the Lorentz force lead to interesting transient effects. The simulations performed for the case of an attenuating Lorentz force explain the dynamics of vertical inhomogeneities of the concentration boundary layer during the initial stages of electrolysis that were previously observed experimentally.

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Authors and Affiliations

  1. Inst. Fluid Mech., Technische Universitat Dresden, 01062, Dresden, Germany

    D. Koschichow, G. Mutschke, X. Yang & J. Fröhlich

  2. Inst. Electrochem. Electroplating, Technische Universitat Ilmenau, 98693, Ilmenau, Germany

    A. Bund

Authors
  1. D. Koschichow
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  2. G. Mutschke
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  3. X. Yang
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  4. A. Bund
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  5. J. Fröhlich
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Corresponding author

Correspondence to G. Mutschke.

Additional information

Published in Russian in Elektrokhimiya, 2012, Vol. 48, No. 7, pp. 756–765.

The article is published in the original.

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Koschichow, D., Mutschke, G., Yang, X. et al. Numerical simulation of the onset of mass transfer and convection in copper electrolysis subjected to a magnetic field. Russ J Electrochem 48, 682–691 (2012). https://doi.org/10.1134/S1023193512060067

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  • DOI: https://doi.org/10.1134/S1023193512060067

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