Abstract
In this work, stability experiments have been performed on a phenyl trifluoromethyl sulfone based solvent containing 6,6′-bis(5,6-dialkyl-[1,2,4-]triazin-3-yl)-2,2′-bipyridine and tri-butyl phosphate. This solvent is intended to be used in a grouped actinide extraction process for partitioning and transmutation purposes. The distribution ratio for americium was determined to approximately 20 and for europium approximately 0.26 giving a separation factor of 77. The solvent maintain good distribution ratios and separation factors during both gamma irradiation of 6.6 kGy h−1 for up to 24 h and acid contact for up to 6 weeks at room temperature.
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The Swedish nuclear fuel and waste management company (SKB) and the European Union seventh Framework Project SACSESS (no. 323282) are both acknowledged for funding this work.
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Halleröd, J., Ekberg, C., Foreman, M. et al. Stability of phenyl trifluoromethyl sulfone as diluent in a grouped actinide extraction process. J Radioanal Nucl Chem 304, 287–291 (2015). https://doi.org/10.1007/s10967-014-3657-1
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DOI: https://doi.org/10.1007/s10967-014-3657-1