Recovery of234Th from natural uranium using liquid emulsion membrane based on HDEHP-HCl system

S. El-Reefy; E. El-Sherif; H. Aly

doi:10.1007/bf02036532

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 207: Issue 1

Recovery of²³⁴Th from natural uranium using liquid emulsion membrane based on HDEHP-HCl system

Authors:

S. El-Reefy

S. El-Reefy Atomic Energy Authority Hot Laboratory Centre 13759 Cairo (Egypt)

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E. El-Sherif

E. El-Sherif Atomic Energy Authority Hot Laboratory Centre 13759 Cairo (Egypt)

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H. Aly

H. Aly Atomic Energy Authority Hot Laboratory Centre 13759 Cairo (Egypt)

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Pages:: 129–136

Online Publication Date:: 14 Aug 2005

Publication Date:: 17 Jul 1996

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02036532

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Abstract

Comparative studies between column and batch liquid emulsion membrane techniques based on HDEHP/HCl system were carried out to develop a system for isolation of²³⁴Th from natural uranium. For column investigations a spray column was constructed and used with two different modes. In the first mode the feed solution was circulated through the membrane while in the second mode the membrane phase was circulated through the feed solution. The results showed that, kinetically, the equilibrium for thorium separation using batch technique is faster than the continous column system. Quantitative permeation of thorium was achieved within one minute of mixing whereby the permeation of uranium reached equilibrium after 3 minutes with a permeation percentage less than 6%. A procedure was developed to separate²³⁴Th from natural uranium with high radiochemical purity of more than 98%.

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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)