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Extraction of U(VI) with N,N,N′,N′-tetraoctyl diglycolamide from nitric acid solution

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Abstract

The extraction of U(VI) from nitric acid solution with N,N,N′,N′-tetraoctyl diglycolamide (TODGA) has been investigated. The influence of diluents, nitric acid concentrations, TODGA concentration and salting-out agents on the extraction distribution ratio was studied. The extraction mechanism was established and the stoichiometry of the main extracted species was confirmed to be UO2(NO3)2·2TODGA. The extraction of UO2 2+ varies with the nature of diluents, sulfonated kerosene and dodecane gave high extraction distribution ratio.

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Acknowledgments

The authors are grateful for the support from the National Nature Science Foundation of China (21171069 and 21077044).

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China

    Xiaolei Liu, Guoxin Sun, Xucan Cai, Xiaofeng Yang, Yexin Li, Zhimeng Sun & Yu Cui

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  1. Xiaolei Liu
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  2. Guoxin Sun
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  3. Xucan Cai
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  4. Xiaofeng Yang
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  5. Yexin Li
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  6. Zhimeng Sun
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  7. Yu Cui
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Correspondence to Guoxin Sun or Yu Cui.

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Liu, X., Sun, G., Cai, X. et al. Extraction of U(VI) with N,N,N′,N′-tetraoctyl diglycolamide from nitric acid solution. J Radioanal Nucl Chem 306, 549–553 (2015). https://doi.org/10.1007/s10967-015-4101-x

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  • DOI: https://doi.org/10.1007/s10967-015-4101-x

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