TETRAVALENT URANIUM EXTRACTION BY HDEHP IN KEROSENE FROM PHOSPHATE MEDIUM

Authors
DAOUD JA ZEID MM ALY HF
Citation
Ja. Daoud et al., TETRAVALENT URANIUM EXTRACTION BY HDEHP IN KEROSENE FROM PHOSPHATE MEDIUM, Solvent extraction and ion exchange, 15(2), 1997, pp. 203-217
Citations number
12
Categorie Soggetti
Chemistry
Journal title
Solvent extraction and ion exchange → ACNP
ISSN journal
07366299
Volume
15
Issue
2
Year of publication
1997
Pages
203 - 217
Database
ISI
SICI code
0736-6299(1997)15:2<203:TUEBHI>2.0.ZU;2-R
Abstract
The extraction of U(IV) by di-2-ethylhexyl phosphoric acid (HDEHP) in kerosene from phosphoric acid was measured spectrophotometrically.The effect of extractant, phosphoric acid, uranium, Fe(II) and Fe(III) con centrations on the extraction process were separately investigated. Th e effect of different reagents and temperature on the stripping of U(I V) were also tested. The results obtained showed that the extraction i ncreases with the increase in HDEHP and Fe(III) concentrations while i t decreases with the increase in phosphoric acid, uranium and Fe(II) c oncentration. The use of high phosphoric acid concentration as strip s olutions at low temperature was found to give good stripping results.