Efficient separation of thorium from rare earths with a hydrogen-bonded oligoaramide extractant in highly acidic media

A novel design based on condensation of a simple bifunctional monomer led to hydrogen-bonded oligoaramide extractant 1 that could segregate Th(IV) from rare earths(III) [REs(III)] and U(VI) under strongly acidic conditions in a highly efficient and selective fashion by solvent extraction process. Th...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2015-08, Vol.305 (2), p.543-549
Main Authors: Wang, Youjia, Wu, Lei, Yang, Yunchang, Feng, Wen, Yuan, Lihua
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Hydrogen
Hydrogen bonding
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
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Summary:A novel design based on condensation of a simple bifunctional monomer led to hydrogen-bonded oligoaramide extractant 1 that could segregate Th(IV) from rare earths(III) [REs(III)] and U(VI) under strongly acidic conditions in a highly efficient and selective fashion by solvent extraction process. The extractant demonstrated a high extractability of 94.5–99.0 % and selectivity for extraction of Th(IV) from REs in 2.0–6.0 M HNO 3 . Particularly, REs were extracted only in
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-015-3990-z