TETRAVALENT URANIUM EXTRACTION BY HDEHP IN KEROSENE FROM PHOSPHATE MEDIUM
作者:
J. A. Daoud,
M. M. Zeid,
M. M. Zeid,
H. F. Aly,
期刊:
Solvent Extraction and Ion Exchange
(Taylor Available online 1997)
卷期:
Volume 15,
issue 2
页码: 203-217
ISSN:0736-6299
年代: 1997
DOI:10.1080/07366299708934474
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
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(lI) and Fe(lll) concentrations on the extraction process were separately investigated. The effect of different reagents and temperature on the stripping of U(IV) were also tested.The results obtained showed that the extraction increases with the increase in HDEHP and Fe(lll) concentrations while it decreases with the increase in phosphoric acid, uranium and Fe(ll) concentration. The use of high phosphoric acid concentration as strip solutions at low temperature was found to give good stripping results.
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