Synthesis of Pre-Organized Bisdiglycolamides (BisDGA) and Study of their Extraction Properties for Actinides(III) and Lanthanides(III)

Bisdiglycolamides 1-9 were synthesized and studied as extracting agents for An(III) and Ln(III) from nitric acid solutions. Compounds 1d-3 with rigid spacers as m-xylylene and 6b-9 with more flexible alkyl chain linkers, show higher selectivity for Eu(III) extraction over Am(III) than diglycolamides...

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Bibliographic Details
Published in:Solvent extraction and ion exchange 2009-03, Vol.27 (2), p.107-131
Main Authors: Murillo, María Teresa, Espartero, Amparo G., Sánchez-Quesada, Jorge, de Mendoza, Javier, Prados, Pilar
Format: Article
Language:English
Subjects:
actinides
Diglycolamides
extractants
high-level waste
lanthanides
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Summary:Bisdiglycolamides 1-9 were synthesized and studied as extracting agents for An(III) and Ln(III) from nitric acid solutions. Compounds 1d-3 with rigid spacers as m-xylylene and 6b-9 with more flexible alkyl chain linkers, show higher selectivity for Eu(III) extraction over Am(III) than diglycolamides (TBDGA, DMDODGA, TODGA) in (50:50) %Vol HPT/1-octanol mixture. Am(III) and Eu(III) extraction kinetics are very fast and back-extraction with more than 99% efficiency of both cations is possible after four times of contact of the loaded solvent with fresh 0.01 mol/L nitric acid solutions.
ISSN:0736-6299
1532-2262
DOI:10.1080/07366290802672212