TS-BTPhen as a promising hydrophilic complexing agent for selective Am(III) separation by solvent extraction
| العنوان: | TS-BTPhen as a promising hydrophilic complexing agent for selective Am(III) separation by solvent extraction |
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| المؤلفون: | Laurence M. Harwood, Frank W. Lewis, Andrew W. Smith, Peter Kaufholz, Andreas Wilden, Fabian Sadowski, Giuseppe Modolo |
| المصدر: | Nukleonika 60(4 (Pt. II)), 815-820 (2015). doi:10.1515/nuka-2015-0120 First SACSESS International Workshop, Warsaw, Poland, 2015-04-22-2015-04-24 Nukleonika, Vol 60, Iss 4, Pp 815-820 (2015) |
| بيانات النشر: | Walter de Gruyter GmbH, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Nuclear and High Energy Physics, liquid-liquid extraction, Stripping (chemistry), Science, F100, Kinetics, chemistry.chemical_compound, Nitric acid, Liquid–liquid extraction, am-cm separation, ddc:530, Chelation, Safety, Risk, Reliability and Quality, Waste Management and Disposal, Instrumentation, Aqueous solution, Chromatography, Chemistry, Condensed Matter Physics, Solvent, Nuclear Energy and Engineering, Selectivity, todga, ts-btphen, Nuclear chemistry |
| الوصف: | The novel hydrophilic back-extraction agent TS-BTPhen (3,3ʹ,3ʺ,3ʹʺ-[3-(1,10-phenanthroline-2,9-diyl)-1,2,4-triazine-5,5,6,6-tetrayl]tetrabenzenesulfonic acid) was tested for its selectivity towards Am(III) over Cm(III) and Eu(III) with a TODGA (N,N,Nʹ,Nʹ-tetraoctyldiglycolamide) based solvent. Batch experiments were carried out using TS-BTPhen dissolved in aqueous nitric acid solution with tracers of 152Eu, 241Am and 244Cm. A significant increase of the separation factor for Cm over Am from SFCm/Am = 1.6 up to SFCm/Am = 3.3 was observed compared to the use of a TODGA-nitric acid system alone. Furthermore, stripping was possible at high nitric acid concentrations (0.6-0.7 mol/L) resulting in a low sensitivity to acidity changes. The influence of the TS-BTPhen concentration was analyzed. A slope of -2 was expected taking into account literature stoichiometries of the lipophilic analogue CyMe4BTPhen. However, a slope of -1 was found. Batch stripping kinetics showed fast kinetics for the trivalent actinides. As an alternative organic ligand the methylated TODGA derivate Me-TODGA (2-methyl-N,N,Nʹ,Nʹ-tetraoctyldiglycolamide) was tested in combination with the hydrophilic TS-BTPhen. The Am(III) separation was achieved at even higher nitric acid concentrations compared to TODGA. |
| وصف الملف: | application/pdf |
| تدمد: | 0029-5922 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff6f3960d411391880cd6dec4d750c09 https://doi.org/10.1515/nuka-2015-0120 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....ff6f3960d411391880cd6dec4d750c09 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00295922 |
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