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Extraction of radium and actinium with Pb resin and Rose Bengal

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Abstract

The extraction of radium and actinium with Eichrom Pb resin and Rose Bengal has been studied. Radium and actinium both show a strong affinity (k’ > 10,000) for the resin at intermediate pHs (~ 5–7) from solutions with Rose Bengal. The pH range and magnitude of uptake for both radium and actinium is significantly increased by the presence of Rose Bengal compared to basic solutions without this counter ion. Radium uptake is extremely fast from basic solutions with and without Rose Bengal; actinium uptake is slower, particularly in solutions without Rose Bengal. Column studies show that despite the similar behavior of actinium and radium in this system, separations of these two elements with Pb resin and Rose Bengal solutions are possible with reasonable yields due to the differences in uptake kinetics.

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Acknowledgements

This study was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. This work was funded by the LLNL Livermore Graduate Research Scholar Program. This material is based upon work supported by the Department of Energy National Nuclear Security Administration through the Nuclear Science and Security Consortium under Award Number DE-NA0003180. The authors would like to thank Roger Henderson for providing the nescessary isotopes and Carlos Valdez for providing the Rose Bengal.

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  1. Nuclear Engineering Department, University of California Berkeley, Berkeley, CA, USA

    Kelly N. Kmak & Jasmina Vujic

  2. Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA, USA

    Kelly N. Kmak & Dawn A. Shaughnessy

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  1. Kelly N. Kmak
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  2. Dawn A. Shaughnessy
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  3. Jasmina Vujic
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Correspondence to Kelly N. Kmak.

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Kmak, K.N., Shaughnessy, D.A. & Vujic, J. Extraction of radium and actinium with Pb resin and Rose Bengal. J Radioanal Nucl Chem 328, 377–385 (2021). https://doi.org/10.1007/s10967-021-07642-x

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  • DOI: https://doi.org/10.1007/s10967-021-07642-x

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