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Room temperature ionic liquid diluent for the extraction of Eu(III) using TRUEX extractants

机译:室温离子液体稀释剂,用于使用TRUEX萃取剂萃取Eu(III)

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摘要

Extraction of europium(III) from nitric acid medium by a solution of tri-n-butylphosphate (TBP) and n-octyl(phenyl)-N,N- diisobutylcarbamoylmethylphosphine oxide (CMPO) in the room temperature ionic liquid, 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (amimNTf2 where a = butyl or hexyl or octyl), was studied. The distribution ratio of ~((152+154))Eu(III) in TBP-CMPO/bmimNTf _2 was measured as a function of various parameters such as the concentrations of nitric acid, CMPO and NaNO_3. Remarkably large distribution ratios were observed for the extraction of europium(III) when bmimNTf_2 acted as diluent. The stoichiometry of metal-solvate in organic phase was determined by the slope analysis of extraction data.
机译:在室温离子液体1-烷基-溶液中,通过磷酸三正丁酯(TBP)和正辛基(苯基)-N,N-二异丁基氨基甲酰基甲基氧化膦(CMPO)的溶液从硝酸介质中萃取euro(III)。研究了3-甲基咪唑双(三氟甲磺酰基)酰亚胺(amimNTf2,其中a =丁基或己基或辛基)。测量TBP-CMPO / bmimNTf _2中〜((152 + 154))Eu(III)的分布比率,该比率是各种参数(例如硝酸,CMPO和NaNO_3)的函数。当bmimNTf_2用作稀释剂时,observed(III)的提取率分布非常大。通过提取数据的斜率分析确定有机相中金属溶剂化物的化学计量。

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