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Quantitative separation of carrier-free cerium from fission products

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Abstract

The extraction of Ce (IV) by di-(2-ethylhexyl)-phosphoric acid (HDEHP) has been studied as a function of nitric acid concentration. Using the distribution coefficient data, the optimum conditions for recovery of Ce (IV) from nitric acid medium were arrived at. Under the conditions employed for Ce(IV), a small percentage of Ru was also found to be extracted. Cerium could be selectively stripped from the organic phase with 8M HNO3/30% H2O2 solution. This procedure led to the recovery of144Ce free of106Ru. Based on the solvent extraction data, an extraction-chromatographic procedure employing HDEHP (40% w/w) loaded on Amberlite XAD-7 as the stationary phase was developed for the isolation of pure, carrier-free144Ce from the spent fuel solution.

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Authors and Affiliations

  1. Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakham, India

    B. Saha, K. Swaminathan, C. R. Venkatasubramani & P. R. Vasudeva Rao

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  1. B. Saha
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  2. K. Swaminathan
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  3. C. R. Venkatasubramani
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  4. P. R. Vasudeva Rao
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Saha, B., Swaminathan, K., Venkatasubramani, C.R. et al. Quantitative separation of carrier-free cerium from fission products. Journal of Radioanalytical and Nuclear Chemistry Letters 214, 17–27 (1996). https://doi.org/10.1007/BF02165055

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  • DOI: https://doi.org/10.1007/BF02165055

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