Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 214: Issue 3

Studies on the kinetics of UO2 dissolution in carbonate-bicarbonate medium using sodium hypochlorite as oxidant

Authors:
J. Sharma Bhabha Atomic Research Centre Uranium and Rare Earths Extraction Division Trombay 400 085 Bombay India

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K. Bhattacharya Bhabha Atomic Research Centre Uranium and Rare Earths Extraction Division Trombay 400 085 Bombay India

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R. Swami Bhabha Atomic Research Centre Uranium and Rare Earths Extraction Division Trombay 400 085 Bombay India

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S. Tangri Bhabha Atomic Research Centre Uranium and Rare Earths Extraction Division Trombay 400 085 Bombay India

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T. Mukherjee Bhabha Atomic Research Centre Uranium and Rare Earths Extraction Division Trombay 400 085 Bombay India

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Pages:
223–233
Online Publication Date:
27 Sep 2005
Publication Date:
01 Oct 1996
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02163251
Restricted access

Abstract  

The dissolution of UO2 in carbonate-bicarbonate solutions containing sodium hypochlorite as an oxidant has been investigated. The effect of temperature, sodium hypochlorite concentration and stirring speed was examined. In the temperature range of 303 to 318 K, the leaching reaction displayed linear kinetics. Apparent activation energy obtained from the differential approach was found to be 57 kJ mol–1. This relatively high activation energy value indicates a chemically controlled behavior of UO2 dissolution. The order of reaction with respect to sodium hypochlorite concentration was found to be unity.

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Cover Journal of Radioanalytical and Nuclear Chemistry
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)

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