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A Comparison of Americium Extractions as a Function of Time using Two Bis-Triazine-Bipyridine Ligands in Long-Chained Alcohol Diluents

Elin Löfström Engdahl (Institutionen för kemi- och bioteknik, Kärnkemi) ; Emma Aneheim (Institutionen för kemi- och bioteknik, Kärnkemi) ; Mark Foreman (Institutionen för kemi- och bioteknik, Kärnkemi) ; Christian Ekberg (Institutionen för kemi- och bioteknik, Kärnkemi) ; Gunnar Skarnemark (Institutionen för kemi- och bioteknik, Kärnkemi)
Separation science and technology (0149-6395). Vol. 49 (2014), 13, p. 2060-2065.
[Artikel, refereegranskad vetenskaplig]

The rate of americium mass transfer between the aqueous and organic phase in a solvent extraction system has been investigated. The ligand used is CyMe4-BTBP and the diluents are long-chained alcohols. The results are compared with earlier reported data using C5-BTBP as ligand. In the C5-BTBP system the rate of the extraction could be correlated with the interfacial tension of the system, while not in the CyMe4-BTBP system. In the CyMe4-BTBP system a high (> 12) or low (< 9) dielectric constant of the diluent affects the equilibrium distribution ratio. Dielectric constants in between these two did not affect the extraction.

Nyckelord: Solvent extraction, rate of extraction, interfacial tension, ligand side group effects

Denna post skapades 2014-09-01. Senast ändrad 2015-11-05.
CPL Pubid: 202186


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Institutionen för kemi- och bioteknik, Kärnkemi (2005-2014)


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On the Diluent and Solvent Effects in Liquid-Liquid Extraction Systems based on Bis-triazine-bipyridine (BTBP) ligands