Authors:
R. Sawant Bhabha Atomic Research Centre Fuel Chemistry Division Trombay 400 085 Mumbai India

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R. Rastogi Bhabha Atomic Research Centre Fuel Chemistry Division Trombay 400 085 Mumbai India

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N. Chaudhuri Bhabha Atomic Research Centre Fuel Chemistry Division Trombay 400 085 Mumbai India

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Abstract  

Extraction of U(IV) by an organic phase containing 30% tri-n-butyl phosphate (TBP) in dodecane from aqueous nitric acid solution containing large amount of U(VI), relevant to nuclear fuel reprocessing by PUREX process, was studied. While acquiring distribution data, an argon atmosphere was maintained. A potentiometric method was used for the determination of U(IV) in the two phases after equilibration. Hydrazine used as stabiliser of U(IV) in the stock solution was destroyed and sulphamic acid was added just before equilibration to avoid the interference due to hydrazine in the subsequent determination of U(IV). Uranium(IV) distribution data between 30% TBP in dodecane and aqueous solution of uranium(VI) and nitric acid of varying concentrations have been presented and compared with available literature data.

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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)