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Mixer-settler runs for the evaluation of tri-<i>iso</i>-amyl phosphate (TiAP) as an alternate extractant totri-<i>n</i>-butyl phosphate (TBP) for reprocessing applications

DOI

25

Citations

0

References

2014

Year

Arumugam Suresh, B. Sreenivasulu, Senigala K. Jayalakshmi, S. Subramaniam, K. N. Sabharwal, N. Sivaraman, K. Nagarajan, T. G. Srinivasan, P. R. Vasudeva Rao
Radiochimica Acta

Abstract

Abstract As part of the studies on the development of alternate extractants for fast reactor fuel reprocessing, a mixer-settler facility for performing counter-current solvent extraction runs with radioactive materials has been set up and commissioned in our laboratory for flow sheet development experiments. Mixer-settler runs were carried out with 1.1 M TiAP/Heavy Normal Paraffin (HNP) as the solvent using the above facility to test the equipment as well as the behaviour of the solvent for continuous solvent extraction processes. Stage profile data generated for the extraction and stripping of nitric acid with TiAP based solvent have been reported. Studies carried out on the continuous counter-current extraction and stripping of U(VI) for 1.1 M TiAP/HNP-U(VI)-HNO 3 system under high solvent loading conditions are also reported in this paper. Overall and stage-wise mass balance data for the above runs are also discussed.