Transport of Rhodium(III) from Chloride Media across a Polymer Inclusion Membrane Containing an Ionic Liquid Metal Ion Carrier
Takafumi Hanada, Mochamad Lutfi Firmansyah, Wataru Yoshida, Fukiko Kubota, Spas D. Kolev, Masahiro Goto
Abstract
Cl, and 20 wt % plasticizer 2-nitrophenyl octyl ether (2NPOE). The driving force for the Rh(III) transport was suggested to be the concentration difference of the chloride ion between the feed and the receiving solutions. More than 70% rhodium(III) could be recovered from the receiving solution, and no transport of iron(III) was observed; however, the two metal ions cannot be separated by liquid-liquid extraction. This is the first report of selective transport of rhodium(III) across a polymer inclusion membrane.
Topics & Concepts
RhodiumPhosphoniumChemistryChlorideIonic liquidMembraneInorganic chemistryMetal ions in aqueous solutionMetalPolymerEtherPolymer chemistryOrganic chemistryCatalysisBiochemistryExtraction and Separation ProcessesRecycling and Waste Management TechniquesIonic liquids properties and applications