Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-12-01T01:50:22.315Z Has data issue: false hasContentIssue false
  • English
  • Français

The Effect of Diluents on Extraction of Actinides and Lanthanides

Published online by Cambridge University Press:  19 October 2011

Teodora Valeria Retegan ,
Christian Ekberg ,
Anna Fermvik  and
Gunnar Skarnemark
Teodora Valeria Retegan
Affiliation:
[email protected], Chalmers University of Technology, Nuclear Chemistry, Kemivagen no. 4, Gothenburg, 412 96, Sweden, +46-31-7722920, +46-31-7722931
Christian Ekberg
Affiliation:
[email protected], Chalmers University of Technology, Nuclear Chemistry, Kemivagen no. 4, Gothenburg, 412 96, Sweden
Anna Fermvik
Affiliation:
[email protected], Chalmers University of Technology, Nuclear Chemistry, Kemivagen no. 4, Gothenburg, 412 96, Sweden
Gunnar Skarnemark
Affiliation:
[email protected], Chalmers University of Technology, Nuclear Chemistry, Kemivagen no. 4, Gothenburg, 412 96, Sweden
Get access

Abstract

A screening experiment was carried out where the organic phase consisted of different concentrations of 2,6-bis-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-benzo[1,2,4]triazy-3-yl)-[2,2']bipyridinyl (CyMe4-BTBP) [1], which is the extracting molecule, dissolved in different diluents. The aqueous phase consisted of 0.01 M HNO3 and was spiked with trace amounts of 241Am and 152Eu acting as analogues for actinides and lanthanides. The ionic strength was kept constant at 1.0 M using NaNO3. Three of the selected diluents used to dissolve CyMe4-BTBP were abandoned: n-hexane, TPH and TBB. Another extraction experiment screened out anisole, 1,1,2,2-tetrachloroethane and benzaldehyde.

A kinetic experiment was then performed. Three very different kinetic behaviors were observed in three different organic systems. For a proper understanding of the kinetic mechanism, further investigations are needed.

Keywords

actinidelanthanidewaste management
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 985: Symposium NN – Scientific Basis for Nuclear Waste Management XXX , 2006 , 0985-NN14-05
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Foreman, M., Hudson, H., Drew, J., Hill, C., Madic, C., Dalton Trans., 13, 1645–1653 (2006).Google Scholar
2. Nilsson, M., Andersson, S., Drouet, F., Ekberg, C., Foreman, M., Hudson, M., Liljenzin, J.- O., Magnusson, D., Skarnemark, G., Solvent Extr. Ion Exch., 24 (3), 299–318 (2006).Google Scholar
3. Madic, C., Hudson, M.J., “High–Level Liquid Waste Partitioning by Means of Completely Incinerable Extractants” (European Commission) EUR 18038 EN, Luxenbourg (1998).Google Scholar
4. Arichi, J., Goetz-Grandmont, G., Brunette, J.-P., Hydrometallurgy, 82,100-109 (2006).Google Scholar
5. Rydberg, J., Cox, M.,Musikas, C.,Choppin, G., Solvent Extraction Principles and Practice Marcel Dekker Inc., New York (2004).Google Scholar
6. Sugimoto, I., Nakamura, M., Kuwano, H., Transducers '95, Eurosensors IX, Stochkolm, 847-850 (1995).Google Scholar
7. Lide, D. R., Handbook of Chemistry and Physics, 82nd edition, CRC Press, pp.15–14 to18 and 8-91 to 107 (2001-2002).Google Scholar
8. http://infosys.korea.ac.kr/kdb/, “Korea Thermophysical Properties Data Bank”.Google Scholar
9. http://leonserver.bio.uci.edu.Google Scholar
10. Aspinall, H.A., Bickley, J.F.,Greeves, N., Kelly, R.V., Smith, P.M., Organometallics, 24, 3458–3467 (2005).Google Scholar
11. Hollerman, A.F., “Lehrbuch der Chemie, Zweiter Teil, Organische Chemie”, 29 und 30 Auflage, p.96 (1963).Google Scholar