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Chemistry - A European Journal 12, 11 (2006) 3074-3081
Task-Specific Ionic Liquids Bearing 2-Hydroxybenzylamine Units: Synthesis and Americium-Extraction Studies
A. Ouadi1, Benoît Gadenne2, Peter Hesemann2, Joël J.E. Moreau2, I. Billard1, C. Gaillard1, S. Mekki1, 3, Gilles Moutiers3

The synthesis of two task-specific ionic liquids (TSILs) bearing 2-hydroxybenzylamine entities is described. These compounds are based on an imidazolium substructure onto which one hydrobenzylamine-complexing moiety is grafted. We have demonstrated that, whether pure or diluted, TSIL is able to extract americium ions. Furthermore, recovery of americium from the IL phase into a receiving phase can be achieved under acidic conditions. A possible mechanism for the metal-ion partitioning is presented, in which the extraction system is driven by an ion-exchange mechanism.
1 :  IReS - Institut de Recherches Subatomiques
2 :  UMR 5076 - Hétérochimie Moléculaire et Macromoléculaire
3 :  SCP - Service de Chimie Physique
Chimie/Chimie de coordination

Chimie/Chimie organique
americium – green chemistry – ion exchange – ionic liquids – solvent extraction