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Extraction and separation of uranium(VI) and Fe(III) from lanthanide chlorides with N,N,N′,N′-tetrasubstituted alkyl diglycolamide extractants

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Abstract

It is of great significance to separate impure elements from rare earth in high purity rare earth production. The extraction of uranium(VI) with three structurally related N,N,N′,N′-tetrasubstituted alkyl diglycolamide extractants in kerosene was studied. The relationship between the chemical structure of diglycolamide and their uranium(VI) extraction behavior was discussed. The extraction of Fe(III) and Nd(III) from chloride media was compared with that of uranium(VI) under the same experimental conditions. The results showed that uranium(VI) and Fe(III) can be effectively removed from NdCl3 solutions with N,N,N′,N′-tetraoctyl diglycolamide using kerosene as diluent.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (21077044) and the Natural Science Foundation of Shandong Province (ZR2015BM030).

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Authors and Affiliations

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

    Xiujing Peng, Yu Cui & Guoxin Sun

  2. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China

    Yulan Li & Jifei Ma

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  1. Xiujing Peng
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  2. Yulan Li
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  3. Jifei Ma
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  4. Yu Cui
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  5. Guoxin Sun
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Correspondence to Guoxin Sun.

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Peng, X., Li, Y., Ma, J. et al. Extraction and separation of uranium(VI) and Fe(III) from lanthanide chlorides with N,N,N′,N′-tetrasubstituted alkyl diglycolamide extractants. J Radioanal Nucl Chem 313, 327–332 (2017). https://doi.org/10.1007/s10967-017-5326-7

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  • DOI: https://doi.org/10.1007/s10967-017-5326-7

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