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Synthesis and characterization of bisdiglycolamides for comparable extraction of Th4+, UO2 2+ and Eu3+ from nitric acid solution

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Abstract

The novel ligand N,N,N′′′′,N′′′′-tetrabutyl-N′′′,N′′′-(N″,N″-diethyl)-ethidene bisdiglycolamide (TBEE-BisDGA) and other eight analogous extractants have been synthesized and characterized by NMR and HRMS. The solvent extraction of Th4+, UO2 2+ and Eu3+ from nitric acid solution using the above BisDGA extractants was investigated in 1-dodecanol at 30 ± 1 °C. The extractants exhibited higher affinity toward Th4+ than UO2 2+ and Eu3+ in the present system. The maximum value of separation factor SF Th(IV)/U(VI) and SF Th(IV)/Eu(III) is 78.5 and 53.3 respectively for TBEE-BisDGA, 88.1 and 69.5 respectively in the case of TBi-PE-BisDGA at 3 M HNO3 solution.

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Acknowledgements

The authors thank National Natural Science Foundation of China (Grant No. 21471072; 21462035) for the financial support of this work.

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Authors and Affiliations

  1. Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China

    Peng Ren, Ze-Yi Yan, Yang Li, Zuo-Miao Wu, Lei Wang, Yi-Quan Gao & Wang-Suo Wu

  2. College of Chemical Engineering, Northwest University for Nationalities, Lanzhou, 730000, China

    Lian-Biao Zhao

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  1. Peng Ren
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  2. Ze-Yi Yan
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  3. Yang Li
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  4. Zuo-Miao Wu
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Correspondence to Ze-Yi Yan.

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Ren, P., Yan, ZY., Li, Y. et al. Synthesis and characterization of bisdiglycolamides for comparable extraction of Th4+, UO2 2+ and Eu3+ from nitric acid solution. J Radioanal Nucl Chem 312, 487–494 (2017). https://doi.org/10.1007/s10967-017-5248-4

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  • DOI: https://doi.org/10.1007/s10967-017-5248-4

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