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Study on the synergic extraction of uranium(VI) with petroleum sulfoxides (PSO) and tri-n-butyl phosphate (TBP) mixture

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Abstract

The synergic extraction of uranium(VI) from nitric acid solution with petroleum sulfoxides (PSO) and tri-n-butyl phosphate (TBP) mixture has been studied. It has been found that maximum synergic extraction effect occurs if the molar ratio of PSO to TBP is two to three. The composition of the complex of synergic extraction is UO2(NO3)2·TBP·PSO. The formation constant of the complex isK PT=8.19. The effect of extractant concentration, nitric acid concentration, salting-out agent concentration and temperature on the extraction equilibrium of uranium(VI) was also studied.

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Authors and Affiliations

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

    Yang Yan-Zhao, Sun Si-Xiu, Yang Yong-Hui & Zhang Lei

  2. Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai, P. R. China

    Yu Shao-Ning & Bao Bo-Rong

Authors
  1. Yang Yan-Zhao
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  2. Sun Si-Xiu
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  3. Yang Yong-Hui
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  4. Zhang Lei
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  5. Yu Shao-Ning
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  6. Bao Bo-Rong
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Yan-Zhao, Y., Si-Xiu, S., Yong-Hui, Y. et al. Study on the synergic extraction of uranium(VI) with petroleum sulfoxides (PSO) and tri-n-butyl phosphate (TBP) mixture. J Radioanal Nucl Chem 241, 231–234 (1999). https://doi.org/10.1007/BF02347320

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  • DOI: https://doi.org/10.1007/BF02347320

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