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Computational electrochemo-fluid dynamics modeling in a uranium electrowinning cell

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Abstract

A computational electrochemo-fluid dynamics model has been developed to describe the electrowinning behavior in an electrolyte stream through a planar electrode cell system. Electrode reaction of the uranium electrowinning process from a molten-salt electrolyte stream was modeled to illustrate the details of the flow-assisted mass transport of ions to the cathode. This modeling approach makes it possible to represent variations of the convective diffusion limited current density by taking into account the concentration profile at the electrode surface as a function of the flow characteristics and applied current density in a commercially available computational fluid dynamics platform. It was possible to predict the conventional current–voltage relation in addition to details of electrolyte fluid dynamics and electrochemical variables, such as the flow field, species concentrations, potential, and current distributions throughout the galvanostatic electrolysis cell.

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Acknowledgments

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP).

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Authors and Affiliations

  1. Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yuseong-gu, Taejon, 305-353, Korea

    K. R. Kim, S. Y. Choi, S. H. Kim, J. B. Shim, S. Paek & I. T. Kim

Authors
  1. K. R. Kim
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  2. S. Y. Choi
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  3. S. H. Kim
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  4. J. B. Shim
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  5. S. Paek
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  6. I. T. Kim
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Corresponding author

Correspondence to K. R. Kim.

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Kim, K.R., Choi, S.Y., Kim, S.H. et al. Computational electrochemo-fluid dynamics modeling in a uranium electrowinning cell. J Radioanal Nucl Chem 299, 165–170 (2014). https://doi.org/10.1007/s10967-013-2720-7

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  • DOI: https://doi.org/10.1007/s10967-013-2720-7

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