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Novel precipitation technique for uranium recovery from carbonate leach solutions

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Abstract

The recovery of uranium from carbonate ore leach solution was studied using novel precipitation method. The uranium from leach liquor was recovered as magnesium diuranate with NaOH in presence of trace amount of Mg2+. Effects of various parameters such as addition of H2SO4, MgO, MgSO4 as well as NaOH were investigated for maximum uranium recovery. Overall uranium recovery of the process was 97 % with improved particle size (~57 µm). Based on the experimental findings, a process flow-sheet was developed for uranium recovery from carbonate ore leach solution with a uranium concentration of <1 g/L.

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Acknowledgments

The authors thank Shri. Sekhar Basu, Director, Bhabha Atomic Research Centre, India for his keen interest in this work. Authors also wish to thank all quality control staff of Uranium Extraction Division for their analytical support during this work.

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Authors and Affiliations

  1. Uranium Extraction Division, Materials Group, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India

    Sujoy Biswas, V. H. Rupawate, K. N. Hareendran, S. B. Roy & J. K. Chakravartty

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  1. Sujoy Biswas
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  2. V. H. Rupawate
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  3. K. N. Hareendran
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  4. S. B. Roy
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  5. J. K. Chakravartty
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Correspondence to Sujoy Biswas.

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Biswas, S., Rupawate, V.H., Hareendran, K.N. et al. Novel precipitation technique for uranium recovery from carbonate leach solutions. J Radioanal Nucl Chem 304, 1345–1351 (2015). https://doi.org/10.1007/s10967-014-3863-x

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  • DOI: https://doi.org/10.1007/s10967-014-3863-x

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