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Extraction of uranium(VI) through reversed micelle by primary amine N1923

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Abstract

A study on extraction of uranium(VI) from sulfuric acid media by the primary amine N1923 in chloroform is described. Extraction coefficients of uranium(VI) as a function of aqueous H2SO4 concentration, extractant concentration and temperature have been studied. From the data, the compositions of extracted species, equilibrium constants and enthalpies of extraction reaction have been evaluated. A new extraction mechanism of amine has been suggested, that is the formation of reversed micelle as a result of the aggregation of ammonium salt in the organic phase of the extraction. This assumption may be used for interpreting extraction data satisfactorily, which can not be explained by the slope analysis method.

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Authors and Affiliations

  1. Department of Chemistry, Shandong University, Jinan, P.R. China

    Yang Yonghui, Sun Sixiu & Yang Zhikun

  2. Department of Chemistry, Normal College, Qingdao University, Qingdao, P.R. China

    Xue Shuyun

  3. Shanghai Institute of Nuclear Research, Academia Sinica, Shanghai, P.R. China

    Wang Youshao & Bao Borong

Authors
  1. Yang Yonghui
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  2. Sun Sixiu
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  3. Xue Shuyun
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  4. Yang Zhikun
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  5. Wang Youshao
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  6. Bao Borong
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Yonghui, Y., Sixiu, S., Shuyun, X. et al. Extraction of uranium(VI) through reversed micelle by primary amine N1923 . J Radioanal Nucl Chem 222, 239–241 (1997). https://doi.org/10.1007/BF02034278

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  • DOI: https://doi.org/10.1007/BF02034278

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