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Kinetics and mechanism of stripping of Pu(IV) by N,N-dimethylhydroxylamine using a Lewis cell

Abstract

The kinetics of back-extraction of Pu(IV) from 30% Tri-Butyl-Phosphate/Odourless Kerosene (TBP/OK) into a nitric acid solution containing N,N-dimethylhydroxylamine (DMHAN) have been investigated using a Lewis cell. The different parameters affecting the back-extraction rate of Pu(IV) such as plutonium, nitric acid, DMHAN concentration in addition to temperature, stirring speed were separately studied and a rate equation was deduced. The activation energy of this process is 28.4 kJ/mol.

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Correspondence to Chen Zuo or Weifang Zheng.

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Zuo, C., Yan, T., Zheng, W. et al. Kinetics and mechanism of stripping of Pu(IV) by N,N-dimethylhydroxylamine using a Lewis cell. J Radioanal Nucl Chem 283, 417–420 (2010). https://doi.org/10.1007/s10967-009-0371-5

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Keywords

  • Kinetics
  • Plutonium(IV)
  • Dimethylhydroxylamine
  • Stripping
  • Lewis cell