Recovery of uranium from thorium in hydrochloric acid medium by liquid emulsion membranes containing trioctylphosphine oxide

S. El-Reefy; Y. Selim; H. Aly

doi:10.1007/bf02387293

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 228: Issue 1-2

Recovery of uranium from thorium in hydrochloric acid medium by liquid emulsion membranes containing trioctylphosphine oxide

Authors:

S. El-Reefy

S. El-Reefy Hot Laboratories Centre Atomic Energy Authority 13759 Cairo Egypt

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Y. Selim

Y. Selim Hot Laboratories Centre Atomic Energy Authority 13759 Cairo Egypt

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H. Aly

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

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Pages:: 21–26

Online Publication Date:: 12 Apr 2006

Publication Date:: 17 Feb 1998

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02387293

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Abstract

The isolation of minor uranium concentration from thorium matrix in HCl medium was investigated using liquid emulsion membrane (LEM) containing TOPO as carrier, Span 80 as surfactant and sodium citrate as stripping agent. The factors affecting the stability of the LEM were investigated. Different parameters affecting the permeation process were also studied. The results obtained showed that, under certain conditions it is possible to isolate ca. 98% of U(VI) (120 ppm) in 1.0M HCl solution containing Th (1000 ppm). The isolated U was found to be contaminated with less than 3% of Th.

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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)