Extraction chromatographic study on the separation of Am 3+ and Eu 3+ using ethyl-BTP as the extractant
Journal of Radioanalytical and Nuclear Chemistry, 2011•akjournals.com
Ethyl-substituted bis-triazinylpyridine (Et-BTP), a nitrogen containing soft-donor extractant,
was used in investigations pertaining to the separation of Am 3+ and Eu 3+ from dilute nitric
acid feed solutions by extraction chromatography using XAD-4 as the inert support,
chlorinated dicarbollide as the modifier and 2-nitrophenyloctylether (NPOE) as the diluent.
After carrying out a series of experiments, the optimum composition of the extractant mixture
for the resin was found out to be 0.1 M Et-BTP and 0.025 M CCD in NPOE. Separation factor …
was used in investigations pertaining to the separation of Am 3+ and Eu 3+ from dilute nitric
acid feed solutions by extraction chromatography using XAD-4 as the inert support,
chlorinated dicarbollide as the modifier and 2-nitrophenyloctylether (NPOE) as the diluent.
After carrying out a series of experiments, the optimum composition of the extractant mixture
for the resin was found out to be 0.1 M Et-BTP and 0.025 M CCD in NPOE. Separation factor …
Abstract
Ethyl-substituted bis-triazinylpyridine (Et-BTP), a nitrogen containing soft-donor extractant, was used in investigations pertaining to the separation of Am 3+ and Eu 3+ from dilute nitric acid feed solutions by extraction chromatography using XAD-4 as the inert support, chlorinated dicarbollide as the modifier and 2-nitrophenyloctylether (NPOE) as the diluent. After carrying out a series of experiments, the optimum composition of the extractant mixture for the resin was found out to be 0.1 M Et-BTP and 0.025 M CCD in NPOE. Separation factor values were encouraging to carry out subsequent batch uptake studies at varying nitrate ion concentration which indicated favourable separation behaviour up to NaNO 3 concentration of 2 M. Column studies have been carried out and conditions for elution and separation of Am 3+ from Eu 3+ have been found out. Long term stability of the resin was also investigated.
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