title: Extraction of cesium ions from aqueous solutions using calix[4]arene-bis(tert-octylbenzo-crown-6) in ionic liquids.
abstract: Solvent extraction of cesium ions from aqueous solution to hydrophobic ionic liquids without the introduction of an organophilic anion in the aqueous phase was demonstrated using calix[4]arene-bis(tert-octylbenzo-crown-6) (BOBCalixC6) as an extractant. The selectivity of this extraction process toward cesium ions and the use of a sacrificial cation exchanger (NaBPh(4)) to control loss of imidazolium cation to the aqueous solutions by ion exchange have been investigated.
authors.affiliation: Nuclear Science and Technology Division and Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: Huimin
authors.initials: H
authors.lastname: Luo
authors.forename: Sheng
authors.initials: S
authors.lastname: Dai
authors.forename: Peter V
authors.initials: PV
authors.lastname: Bonnesen
authors.forename: A C
authors.initials: AC
authors.lastname: Buchanan
authors.forename: John D
authors.initials: JD
authors.lastname: Holbrey
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Bridges
authors.forename: Robin D
authors.initials: RD
authors.lastname: Rogers