Simulation of the neptunium behavior during the first solvent extraction cycle in the PUREX process

In order to co-recycle neptunium, uranium and plutonium using the PUREX process, numerical simulations were used to investigate the behaviors of neptunium in the first solvent extraction cycle. Counter-current extraction experiments using a miniature mixer-settler were performed to verify the simula...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2013-02, Vol.295 (2), p.883-888
Main Authors: Zhang, Hu, Ye, Guo-an, Li, Li, Zheng, Wei-fang, Cong, Hai-feng, Xiao, Song-tao, Yang, He, Lan, Tian
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Computer simulation
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Mathematical analysis
Miniature
Neptunium
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Plutonium
Pyridine
Radioactive pollution
Solvent extraction
Uranium
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Summary:In order to co-recycle neptunium, uranium and plutonium using the PUREX process, numerical simulations were used to investigate the behaviors of neptunium in the first solvent extraction cycle. Counter-current extraction experiments using a miniature mixer-settler were performed to verify the simulation. Calculated results based on experiments show that the concentrations of nitric and nitrous acid, saturation of uranium, flow ratio and residence time have important effects on the pathway of neptunium, and accumulation of neptunium may appear with the presence of uranium and plutonium.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-012-2297-6