Uphill transport of rare-earth metals through a highly stable supported liquid membrane based on an ionic liquid.
We have developed a highly stable supported liquid membrane based on ionic liquids (ILs) for the separation of rare-earth metals, employing N,N-dioctyldiglycol amic acid as a mobile carrier. The quantitative transport of Y and Eu through the membrane was successfully attained, and separation from metal impurities, Zn, was efficiently accomplished. A membrane stable enough for long-term operation was constructible from imidazolium-based ILs having a longer alkyl chain, such as octyl or dodecyl groups in an imidazolium cation.
Kubota
Fukiko
F
Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan. f_kubotcm@mail.cstm.kyushu-u.ac.jp
Shimobori
Yousuke
Y
Koyanagi
Yusuke
Y
Shimojo
Kojiro
K
Kamiya
Noriho
N
Goto
Masahiro
M
D007093:Imidazoles / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D008567:Membranes, Artificial; D008674:Metals, Rare Earth / Q000032:analysis* / Q000737:chemistry*
D007093:Imidazoles; D052578:Ionic Liquids; D008567:Membranes, Artificial; D008674:Metals, Rare Earth