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

作者：Lofstrom Engdahl Elin^*; Aneheim Emma; Ekberg Christian; Foreman Mark; Skarnemark Gunnar

来源：Separation Science and Technology, 2014, 49(13): 2060-2065.

DOI：10.1080/01496395.2014.911325

• alcohols as diluents
• americium
• liquid-liquid extraction
• rate of extraction
• interfacial tension

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.

• 出版日期2014