Distribution coefficients of UO2(NO3)(2)center dot 2TBP in supercritical fluid CO2 as determined by on-line time resolved laser induced fluorescence

Authors
Addleman, RS Wai, CM
Citation
Rs. Addleman et Cm. Wai, Distribution coefficients of UO2(NO3)(2)center dot 2TBP in supercritical fluid CO2 as determined by on-line time resolved laser induced fluorescence, RADIOCH ACT, 89(1), 2001, pp. 27-33
Citations number
29
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RADIOCHIMICA ACTA
ISSN journal
00338230 → ACNP
Volume
89
Issue
1
Year of publication
2001
Pages
27 - 33
Database
ISI
SICI code
0033-8230(2001)89:1<27:DCOUD2>2.0.ZU;2-G
Abstract
Time resolved laser induced fluorescence has been used for on-line analysis of uranium extraction from acidic solutions with tributyl phosphate modifi ed supercritical carbon dioxide. The in-situ measurement allows direct char acterization of the supercritical fluid extraction. The extractions were fo und to be first order with respect to uranium and the distribution coeffici ent was observed to increase with temperature and tributyl phosphate concen tration.