Modelling of the extraction of uranium with supercritical carbon dioxide

Authors
Clifford, AA Zhu, S Smart, NG Lin, YH Wai, CM Yoshida, Z Meguro, Y Iso, S
Citation
Aa. Clifford et al., Modelling of the extraction of uranium with supercritical carbon dioxide, J NUC SCI T, 38(6), 2001, pp. 433-438
Citations number
12
Categorie Soggetti
Nuclear Emgineering
Journal title
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
ISSN journal
00223131 → ACNP
Volume
38
Issue
6
Year of publication
2001
Pages
433 - 438
Database
ISI
SICI code
0022-3131(200106)38:6<433:MOTEOU>2.0.ZU;2-T
Abstract
A model is presented for the analysis of the results of extraction of urani um in a flow system by supercritical fluid modified with tributylphosphate from a nitric acid matrix, in which the extraction is not limited by the so lubility of the uranium species. The model used is that of diffusion out of a sphere into a medium in which the extracted uranium is infinitely dilute . Although not a completely accurate representation of the liquid-supercrit ical fluid system, the model is shown to be a reasonable representation and some conclusions discussed.