Mechanism of uranium(IV) extraction with CYANEX 302 in kerosene from nitrate medium

N. Abdel Rahman; J. Daoud; H. Aly

doi:10.1023/b:jrnc.0000011756.77475.17

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 258: Issue 3

Mechanism of uranium(IV) extraction with CYANEX 302 in kerosene from nitrate medium

Authors:

N. Abdel Rahman

N. Abdel Rahman Atomic Energy Authority Hot Laboratories Centre 13759 Cairo Egypt

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J. Daoud

J. Daoud Atomic Energy Authority Hot Laboratories Centre 13759 Cairo Egypt

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H. Aly

H. Aly Atomic Energy Authority Hot Laboratories Centre 13759 Cairo Egypt

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Pages:: 597–603

Online Publication Date:: 01 Nov 2004

Publication Date:: 17 Dec 2003

Article Category:: Research Article

DOI:: https://doi.org/10.1023/b:jrnc.0000011756.77475.17

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Abstract

The extraction of U(IV) by bis(2,4,4-trimethylpentyl) monothiophosphinic acid (CYANEX 302) in kerosene from nitric acid solution has been investigated under equilibrium conditions. The effects of the different parameters affecting the extraction process were studied and the stoichiometry of the extracted species was elucidated. The kinetics of this extraction was also investigated using a stirred Lewis cell. The effects of the different parameters affecting the extraction rate as well as the temperature were separately investigated. The results are interpreted by a reaction mechanism where the extraction process of U(IV) is controlled by a chemical reaction at the interface rather than in the bulk phase.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)