Ultrasound enhancement of dissolution kinetics of uranium oxides in supercritical carbon dioxide

Citation
Ti. Trofimov et al., Ultrasound enhancement of dissolution kinetics of uranium oxides in supercritical carbon dioxide, J CHEM TECH, 76(12), 2001, pp. 1223-1226
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Biotecnology & Applied Microbiology","Chemical Engineering
Journal title
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
ISSN journal
0268-2575 → ACNP
Volume
76
Issue
12
Year of publication
2001
Pages
1223 - 1226
Database
ISI
SICI code
0268-2575(200112)76:12<1223:UEODKO>2.0.ZU;2-#
Abstract
The enhanced dissolution of uranium oxides by the application of ultrasound in supercritical fluid carbon dioxide containing dissolved 4,4-trifluoro-1 -(2-thienyl)-1,3-butanedione and tributyl phosphate is demonstrated. Under conditions of 60 degreesC and 150 atm. the steady state dissolution of UO3 with sonification is increased by approximately 100%. Furthermore, the effe ct of adding hydrogen peroxide to the supercritical system above enables th e lower oxides of uranium, UO2 and U3O8, to be extracted. (C) 2001 Society of Chemical Industry.