학술논문
Solvent Extraction of Pu(IV) Using TBP: A Comparative Study of n-dodecane and a Room Temperature Ionic Liquid.
Document Type
Article
Author
Source
Subject
*PLUTONIUM
*SOLVENT extraction
*IONIC liquids
*NITRIC acid
*PHOSPHATES
*FLUOROMETHANE
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Language
ISSN
0149-6395
Abstract
The extraction of Pu(IV) from nitric acid medium using TBP has been compared with two diluents using n-dodecane and a RTIL, 1-butyl-3-methylimidazolium bis(trifluoromethanesulphonyl)imide (C4mimTf2N). Kinetics of extraction was slower in RTIL compared to n-dodecane. The mechanism of extraction was found to be cation exchange at lower acidity which changes to the formation of a neutral complex at higher acidity greater than 1M HNO3for RTIL. Back extraction of Pu from the loaded organic phase was equally effected using 0.1M oxalic acid and a mixture of guanidine carbonate and EDTA as strippant from both the extraction systems under study. Radiation stability and reusability studies showed promise for future application. [ABSTRACT FROM PUBLISHER]