Authors:
M. El Absy Atomic Energy Establishment Radioisotope Production and Labelled Compounds Department P.O. Code 13759 Cairo (Egypt)

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I. El Naggar Nuclear Research Centre, Atomic Energy Establishment Nuclear Chemistry Department P.O. Code 13759 Cairo (Egypt)

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M. Hamid Nuclear Research Centre, Atomic Energy Establishment Nuclear Chemistry Department P.O. Code 13759 Cairo (Egypt)

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H. Aly Atomic Energy Establishment Hot Laboratory Centre P.O. Code 13759 Cairo (Egypt)

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Abstract  

The distribution of UO 22+ and Th4+ in nitric acid media on crypomelane-type hydrous manganese dioxide (CRYMO) has been investigated by batch equilibrations and column break-through techniques. The parameters studied involve the media composition and concentrations of HNO3, NaNO3, UO 22+ and Th4+. It is found that Th4+ is more strongly adsorbed on CRYMO than UO 22+ with sufficient differences for chromatographic separation from each other. Uranium was quantitatively eluted from a CRYMO column with 0.1M HNO3. Th4+ has been recovered by using 1M HNO3 as eluent.

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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)