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Extraction of U(VI) and Th(IV) from nitric acid solutions with N,N,N′,N′-tetrahexylsuccinylamide

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Abstract

A new diamide N,N,N′,N′-tetrahexylsuccinylamide (THSA) was synthesized, characterised and used for the extraction of U(V) and Th(IV) from nitric acid solutions in a diluent composed of 50% 1,2,4-trimethylbenzene (TMB) and 50% kerosene (OK). Extraction distribution coefficients of U(VI) and Th(IV) as a function of aqueous nitric acid concentration, extractant concentration and temperature have been studied. The composition of extracted species, equilibrium constants and enthalpies of extraction reactions have also been calculated. The IR spectra of saturated extraction of U(VI) and Th(IV) were recorded.

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Authors and Affiliations

  1. Institute of Nuclear Research, Chinese Academy of Sciences, P.O. Box 800-204, 201800, Shanghai, P. R. China

    Y. -Sh. Wang, G. -X. Sun & B. -R. Bao

  2. Department of Chemistry, Shandong University, 250100, Jinan, P. R. China

    S. -X. Sun

Authors
  1. Y. -Sh. Wang
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  2. G. -X. Sun
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  3. B. -R. Bao
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  4. S. -X. Sun
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Wang, Y.S., Sun, G.X., Bao, B.R. et al. Extraction of U(VI) and Th(IV) from nitric acid solutions with N,N,N′,N′-tetrahexylsuccinylamide. J Radioanal Nucl Chem 219, 119–121 (1997). https://doi.org/10.1007/BF02040277

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  • DOI: https://doi.org/10.1007/BF02040277

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