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Status: Bibliographieeintrag

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Verfasst von:Wilden, Andreas [VerfasserIn]   i
 Modolo, Giuseppe [VerfasserIn]   i
 Lange, Steve [VerfasserIn]   i
 Sadowski, Fabian [VerfasserIn]   i
 Beele, Björn B. [VerfasserIn]   i
 Skerencak-Frech, Andrej [VerfasserIn]   i
 Panak, Petra [VerfasserIn]   i
 Iqbal, Mudassir [VerfasserIn]   i
 Verboom, Willem [VerfasserIn]   i
 Geist, Andreas [VerfasserIn]   i
 Bosbach, Dirk [VerfasserIn]   i
Titel:Modified diglycolamides for the An(III) + Ln(III) co-separation
Titelzusatz:evaluation by solvent extraction and time-resolved laser fluorescence spectroscopy
Verf.angabe:Andreas Wilden, Giuseppe Modolo, Steve Lange, Fabian Sadowski, Björn B. Beele, Andrej Skerencak-Frech, Petra J. Panak, Mudassir Iqbal, Willem Verboom, Andreas Geist, Dirk Bosbach
E-Jahr:2014
Jahr:24 Jan 2014
Umfang:19 S.
Fussnoten:Gesehen am 23.09.2020
Titel Quelle:Enthalten in: Solvent extraction and ion exchange
Ort Quelle:Philadelphia, PA : Taylor & Francis, 1983
Jahr Quelle:2014
Band/Heft Quelle:32(2014), 2, Seite 119-137
ISSN Quelle:1532-2262
Abstract:The use of two recently developed diglycolamide-based extractants for the co-separation of trivalent actinides (An(III)) and lanthanides (Ln(III)) is described and compared to the well-known extractant TODGA (N,N,N’,N’-tetraoctyl diglycolamide). The addition of one or two methyl groups to the central methylene carbon atoms of the TODGA molecule leads to a reduction of the extraction efficiency for An(III) and Ln(III). This is attributed to a lower complex formation constant, which was proven by Time-Resolved Laser Fluorescence Spectroscopy (TRLFS). Conditional stability constants were determined by solvent extraction and TRLFS. The reduction in extraction efficiency leads to overall reduced distribution ratios of all tested metal ions, including Sr(II). The reduced Sr(II) extraction is beneficial as a co-extraction in a solvent extraction process could be avoided, while an efficient extraction of the desired An(III) and Ln(III) is still achieved. Furthermore, this might be a benefit, as the stripping behavior might be improved, even at moderate nitric acid concentrations. The slightly higher affinity of the diglycolamides towards Eu(III) over Am(III) is represented by all ligands, although the selectivity is rather low. This results in promising extraction properties of the modified diglycolamides towards the development of continuous solvent extraction processes.
DOI:doi:10.1080/07366299.2013.833791
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1080/07366299.2013.833791
 DOI: https://doi.org/10.1080/07366299.2013.833791
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:actinide partitioning
 americium
 curium
 diglycolamides
 solvent extraction
 time-resolved laser fluorescence spectroscopy
 TODGA
K10plus-PPN:1733611517
Verknüpfungen:→ Zeitschrift

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