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- W4381104216 abstract "ABSTRACTABSTRACTSeparation of Minor Actinide (MA) from High-level Radioactive Liquid Waste (HLW), especially from Ln3+, is greatly needed in the nuclear fuel cycle to reduce the long-term radiotoxicity associated with the waste and for transmutation use. Devising a simple process and designing an extractant is challenging due to the chemical similarity of An3+ and Ln3+ in aqueous solutions. Hence, a tailor-made extractant was prepared, and the partitioning of MA (An3+: 241Am and 244Cm) from Ln3+ rich HLW has been demonstrated using indigenously developed Camphor-based Bis-Triazinyl-Pyridine (CA-BTP) impregnated XAD−7 (BTP Resin). The BTP resin exhibited good adsorption selectivity toward An3+ over Ln3+, acceptable adsorption kinetic, and adequate stability against HNO3 (<2.5 mol/L) and γ-irradiation. The % decontamination factor (DF) achieved was > 99.99 for 137Cs and 154Eu, and 99.7 for Nd. Separated 241Am was precipitated with a saturated solution of oxalic acid. The performance of BTP resin reveals that it has an excellent potential to separate 241Am from Ln3+-rich HLW solution in pure form.KEYWORDS: High-level radioactive liquid wasteminor actinidesbis-triazinyl-pyridineextraction chromatographyAmericium oxalate Disclosure statementNo potential conflict of interest was reported by the authors." @default.
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- W4381104216 date "2023-06-18" @default.
- W4381104216 modified "2023-09-27" @default.
- W4381104216 title "Chromatography separation of minor actinides from Ln<sup>3+</sup> rich high-level radioactive liquid waste (HLW) using bis-triazinyl-pyridine (BTP) resin" @default.
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- W4381104216 doi "https://doi.org/10.1080/01496395.2023.2223757" @default.
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