Evaluation of selected solvent systems for the single-cycle separation of Am(III) from Eu(III) using aqueous soluble sulphonated bis-triazinylpyridine

摘要: Abstract The process methods developed for partitioning of trivalent actinides from high-level liquid waste (HLLW) are being focussed on single-cycle processing approaches. This method involves the separation and chemically similar lanthanides, as a group, HLLW followed by mutual lanthanides loaded organic phase using aqueous soluble complexing agents. potential solvents identified group trivalents 1) 0.2 M TODGA (N,N,N’N′-tetraoctyldiglycolamide) + 5% octanol / n-DD, 2) TODGA + 0.5 M TBP (tri-n-butylphosphate) / n-DD, 3) 0.1 M TODGA + 0.25 M HDEHP (di-(2-ethylhexyl)phosphoric acid) / n-DD, 4) TDDGA (N,N,N’N′-tetradecyldiglycolamide) / n-DD, 5) D3DODGA (N,N-didodecyl-N’N′-dioctyldiglycolamide) / n-DD, 6) 0.4 M DOHyA (N,N-dioctyl-2-hydroxyacetamide) / n-DD. extraction behaviour Am(III) Eu(III) dilute nitric acid solution (0.1 M to 1 M) containing nitrogen-donor derivative, SO3-Ph-BTP, was studied in above solvents. factor (SF) over determined. Among different investigated, SF achieved quite higher than other solvents, recommended HLLW.