Partitioning of plutonium and uranium in aqueous medium using hydroxyurea as reducing agent

A new process for the partitioning of plutonium and uranium during the reprocessing of spent fuel discharged from fast reactor was optimised using hydroxyurea (HU) as a reductant. Stoichiometric ratio of HU required for the reduction of Pu(IV) was studied. The effect of concentration of uranium, plu...

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Bibliographic Details
Published inJournal of radioanalytical and nuclear chemistry Vol. 292; no. 2; pp. 603 - 608
Main Authors Sivakumar, P., Meenakshi, S., Rao, R. V. Subba
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.05.2012
Springer
Subjects
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Hydroxyurea
Innovations
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Oxalates
Oxalic acid
Physical Chemistry
Plutonium
Rain and rainfall
Spent reactor fuels
Uranium
Hydroxyurea
Uranium
Plutonium
Partitioning
Fast reactor fuels
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Summary:A new process for the partitioning of plutonium and uranium during the reprocessing of spent fuel discharged from fast reactor was optimised using hydroxyurea (HU) as a reductant. Stoichiometric ratio of HU required for the reduction of Pu(IV) was studied. The effect of concentration of uranium, plutonium and acidity on the distribution ratio (Kd) of Pu in the presence of HU was studied. The effect of HU in further purification of Pu such as solvent extraction and precipitation of plutonium as oxalate was also studied. The results of the study indicate that Pu and U can be separated from each other using HU as reductant.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-011-1454-7