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Recovery of actinides extracted by Truex solvent from high level waste using complexing agents

II. Counter-current studies

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Abstract

These studies are an extension of carlier work on the recovery of actinides extracted by Truex solvent from simulated high level waste solution, with a mixture of weak acid, weak base and complexing agent used as a strippant. The effectiveness of the proposed strippant, consisting of formic acid, hydrazine hydrate and citric acid, is tested in a counter-current mode using mixer-settler in the present studies. The studies show that near quantitative recovery of americium and plutonium is feasible from acid-bearing Truex solvent with no reflux (reextration) of activity. Use of this strippant reduces considerably the generation of secondary waste.

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Authors and Affiliations

  1. Process Engineering and Systems Development Division, Bhabha Atomic Research Centre, 400 085, Mumbai, India

    R. R. Chitnis & P. K. Wattal

  2. Fuel Reprocessing Division, Bhabha Atomic Research Centre, 400 085, Mumbai, India

    A. Ramanujam, P. S. Dhami & V. gopalakrishnan

  3. Bio-Organic Division, Bhabha Atomic Research Centre, 400 085, Mumbai, India

    A. K. Bauri & A. Banerji

Authors
  1. R. R. Chitnis
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  2. P. K. Wattal
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  3. A. Ramanujam
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  4. P. S. Dhami
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  5. V. gopalakrishnan
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  6. A. K. Bauri
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  7. A. Banerji
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Chitnis, R.R., Wattal, P.K., Ramanujam, A. et al. Recovery of actinides extracted by Truex solvent from high level waste using complexing agents. J Radioanal Nucl Chem 240, 727–730 (1999). https://doi.org/10.1007/BF02349844

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  • DOI: https://doi.org/10.1007/BF02349844

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