Extraction Chromatographic Performance of Uranium Using XAD-4 Loaded with Di-2-ethylhexylphosphoric Acid and Nitrate Solutions
作者:
M. M. Abdel Badei,
S. M. Khalifa,
H. A. Dessouky,
H. M. Aly,
H. F. Aly,
期刊:
Isotopenpraxis Isotopes in Environmental and Health Studies
(Taylor Available online 1989)
卷期:
Volume 25,
issue 5
页码: 211-214
ISSN:0021-1915
年代: 1989
DOI:10.1080/10256018908624102
出版商: Taylor & Francis Group
关键词: column packing;extraction chromatography;extraction columns;liquid wastes;radioactive wastes;solvent extraction;uranium nitrates;wastes
数据来源: Taylor
摘要:
Chromatographic extraction of uranium from nitrate medium using di-2-ethythexylphosphoric acid (HDEHP) loaded on XAD-4 (macroporous styrene divinylbenzene) is investigated. Parameters affecting column performance including flow rate, HDEHP concentration and column dimensions are studied in terms of height equivalent to theoretical plate and break-through capacity. The experimental results are analysed based on Van Deemter equation. The different constants representing the longitudinal diffusion of the solute in the mobile phase, packing irregularities of the column and rate of transfer of solute between the stationary and aqueous phases are evaluated and discussed. Optimum conditions for uranium removal from comparable simulated high active waste nitrate solution are studied.
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