Trichotomic separation of light and heavy lanthanides and Am by batchwise multi-stage extractions using TODGA

To achieve trichotomic separation of light lanthanides (Ln), heavy Ln, and Am, batchwise multi-stage extractions using N , N , N ′, N ′-tetraoctyl-diglycolamide (TODGA) extractant from organic acids are studied. This technique has the advantages of both solvent extraction and chromatography, which e...

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Published inJournal of radioanalytical and nuclear chemistry Vol. 327; no. 1; pp. 597 - 607
Main Authors Matsumiya, Masahiko, Tsuchida, Yusuke, Sasaki, Yuji, Ono, Ryoma, Nakase, Masahiko, Takeshita, Kenji
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 2021
Springer
Springer Nature B.V
Subjects
Acids
Aqueous solutions
Chemistry
Chemistry and Materials Science
Chromatography
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Lanthanides
Nuclear Chemistry
Nuclear energy
Nuclear Physics
Organic acids
Physical Chemistry
Separation
Solvent extraction
Lanthanide
Malonic acid
Am
Solvent extraction
TODGA
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Summary:To achieve trichotomic separation of light lanthanides (Ln), heavy Ln, and Am, batchwise multi-stage extractions using N , N , N ′, N ′-tetraoctyl-diglycolamide (TODGA) extractant from organic acids are studied. This technique has the advantages of both solvent extraction and chromatography, which enable successive separation and management of large volumes of aqueous solutions. Malonic acid (M-Acid) is used as the main component of the aqueous phase. It is clear that the separation factor for Nd/Am from M-Acid and that for La/Am from M-Acid + HNO 3 are both around 30, thus we plan to conduct these separations.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-020-07464-3