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Uranium ore processing: Kinetics of the growth and dissolution of a potential host solid from a model surface

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Abstract

As part of an investigation concerning the fate of226Ra during uranium ore milling and long-term tailings storage, we have investigated the growth of potential host solids-barium sulfate and lead sulfate-on mica, a model surface. The kinetics of dissolution of barium sulfate-and of a barium sulfate solid containing228Ra as a trace component into 10−3M sulfuric acid were subsequently investigated using a flow-cell and radiotracer techniques. It was found that ther dissolution of both the barium sulfate host and the228Ra trace component was congruent. The dissolution reaction appears to be surface controlled.

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Authors and Affiliations

  1. Department of Chemistry, McMaster University, L8S 4M1, Hamilton, Ontario, (Canada)

    C. R. Paige, W. A. Kornicker & O. E. Hileman Jr.

  2. Department of Civil Engineering, McMaster University, L8S 4M1, Hamilton, Ontario, (Canada)

    W. J. Snodgrass

Authors
  1. C. R. Paige
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  2. W. A. Kornicker
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  3. O. E. Hileman Jr.
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  4. W. J. Snodgrass
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Paige, C.R., Kornicker, W.A., Hileman, O.E. et al. Uranium ore processing: Kinetics of the growth and dissolution of a potential host solid from a model surface. Journal of Radioanalytical and Nuclear Chemistry, Articles 178, 261–271 (1994). https://doi.org/10.1007/BF02039720

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  • DOI: https://doi.org/10.1007/BF02039720

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