Solvent extraction of Pu(IV) with TODGA in C6mimTf2N |
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| Authors: | Xiaohong Huang Qiuyue Zhang Jinping Liu Hui He Wenbin Zhu Xiaorong Wang |
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| Institution: | 1. Department of Radiochemistry, China Institute of Atomic Energy, Beijing, 102413, People’s Republic of China
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| Abstract: | Studies on the solvent extraction of Plutonium(Pu(IV)) from aqueous nitric acid by N,N,N′,N′-tetraoctyl-diglycolamide (TODGA) in 1-hexyl-3-methylimidazolium-bis(trifluoromethylsulfonyl) imide (C6mimTf2N) room temperature ionic liquid (RTIL) were carried out. It was found that Pu(IV) is extracted into RTIL phase as Pu(NO3)(TODGA)]3+ through cation exchange mechanism. Extraction reaction equation is obtained by the influence of acidity and extractant concentration, and the parameters of thermodynamic equilibrium constant was calculated. |
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