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Control of the extractive power of crown ethers by alkyl substitution

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Abstract

Aiming to find extractants suitable for recovery of cesium from nitric acid solutions with a high sodium content, two types of alkylated derivatives of 18-crown-6 were studied. Derivatives of the first type (five compounds) were prepared by introducing alkyl substituents into the macroring. Derivatives of the second type were prepared by introducing alkyl substituents into phenyl or cyclohexyl fragments of dibenzo-18-crown-6 (DB18C6) and dicyclohexyl-18-crown-6 (DCH18C6) (16 compounds). The alkylated crown ethers exhibit different reactivity depending on the substitution mode. Introduction of two alkyl substituents into the phenyl rings of dibenzo-18-crown-6 allowed preparation of compounds ensuring the Cs/Na separation factor as high as 100 and more.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia

    V. V. Yakshin, O. M. Vilkova, N. A. Tsarenko & A. Yu. Tsivadze

  2. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia

    S. V. Demin & V. I. Zhilov

Authors
  1. V. V. Yakshin
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  2. O. M. Vilkova
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  3. N. A. Tsarenko
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  4. A. Yu. Tsivadze
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  5. S. V. Demin
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  6. V. I. Zhilov
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Additional information

Original Russian Text © V.V. Yakshin, O.M. Vilkova, N.A. Tsarenko, A.Yu. Tsivadze, S.V. Demin, V.I. Zhilov, 2006, published in Radiokhimiya, 2006, Vol. 48, No. 2, pp. 153–157.

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Yakshin, V.V., Vilkova, O.M., Tsarenko, N.A. et al. Control of the extractive power of crown ethers by alkyl substitution. Radiochemistry 48, 170–174 (2006). https://doi.org/10.1134/S1066362206020135

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  • DOI: https://doi.org/10.1134/S1066362206020135

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