Authors:
Bao Bo-Rong Academia Sinica Shanghai Institute of Nuclear Research Shanghai (China)

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Bao Ya-Zhi Academia Sinica Shanghai Institute of Nuclear Research Shanghai (China)

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Shen Chao-Hong Academia Sinica Shanghai Institute of Nuclear Research Shanghai (China)

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Wang Gao-Dong Academia Sinica Shanghai Institute of Nuclear Research Shanghai (China)

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Qian Jun Academia Sinica Shanghai Institute of Nuclear Research Shanghai (China)

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Cao Zheng-Bai Suzhou University Chemistry Department Suzhou (China)

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Abstract  

A study on solvent extraction of U(VI), Th(IV) and HNO3 from nitric acid media by DEHSO is described. Extraction coefficients of U(VI), Th(IV) and HNO3 as a function of aqueous HNO3 concentration, extractant concentration and temperature have been studied. From the data the compositions of extracted species, equilibrium constants and enthalpies of extraction reaction have been evaluated. Back-extraction of U(VI) and Th(IV) from the organic phase by dilute nitric acid has also been tested. All studies on DEHSO are compared with TBP.

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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)