Journal of Radioanalytical and Nuclear Chemistry

, Volume 283, Issue 2, pp 417–420 | Cite as

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

  • Chen Zuo
  • Taihong Yan
  • Weifang Zheng
  • Chuanbo Li
  • Xiaorong Wang


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.


Kinetics Plutonium(IV) Dimethylhydroxylamine Stripping Lewis cell 


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009

Authors and Affiliations

  1. 1.Department of RadiochemistryChina Institute of Atomic EnergyBeijingPeople’s Republic of China

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