Journal of Radioanalytical and Nuclear Chemistry

, Volume 303, Issue 1, pp 1029–1035 | Cite as

Dissolution of intact UO2 pellet in batch and rotary dissolver conditions

  • Jayendra Kumar Gelatar
  • Bijendra Kumar
  • M. Sampath
  • Shekhar KumarEmail author
  • U. Kamachi Mudali
  • R. Natarajan


Comparative dissolution of intact un-irradiated UO2 pellet of PHWR fuel dimensions was performed in batch and dynamic rotary dissolver conditions in aqueous nitric acid solutions at elevated temperatures. The extent of dissolution was estimated by determining the uranium concentration of the resulting aqueous solution. It was observed that rate of dissolution was much faster in dynamic conditions as compared to static batch conditions.


UO2 Reprocessing Dissolution Aqueous media Nitric acid 



Fast Breeder Reactor


FORmula TRANslation, a computer language of yesteryears


Japan Atomic Energy Agency


New Extraction System for TRU Recovery


Oak Ridge National Laboratory


Pressurized Heavy Water Reactor

List of symbols


Concentration of species A (mol/L)


Initial concentration of species A (mol/L)


Rate constant for the reaction, units will depend on order. For first order reaction, units will be reciprocal of time


Rate of reaction, also equal to \( -\frac{{{\text{d}}C_{A} }}{{{\text{d}}t}} \) (mol/L · s or mol/L · h)


time (h)



Authors sincerely acknowledge the assistance provided by Mr. S. Sundaramurthy in conducting the experiments.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • Jayendra Kumar Gelatar
    • 1
  • Bijendra Kumar
    • 1
  • M. Sampath
    • 1
  • Shekhar Kumar
    • 1
    Email author
  • U. Kamachi Mudali
    • 1
  • R. Natarajan
    • 1
  1. 1.Reprocessing R&D Division, Reprocessing GroupIndira Gandhi Centre for Atomic ResearchKalpakkamIndia

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