基于离子液体的高度稳定支撑液膜对稀土金属的上坡传输
Uphill transport of rare-earth metals through a highly stable supported liquid membrane based on an ionic liquid.
作者信息
Kubota Fukiko, Shimobori Yousuke, Koyanagi Yusuke, Shimojo Kojiro, Kamiya Noriho, Goto Masahiro
机构信息
Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan.
出版信息
Anal Sci. 2010;26(3):289-90. doi: 10.2116/analsci.26.289.
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.
我们开发了一种基于离子液体（ILs）的高度稳定的支撑液膜，用于稀土金属的分离，采用N，N - 二辛基二甘醇酰胺酸作为流动载体。成功实现了Y和Eu通过膜的定量传输，并有效地完成了与金属杂质Zn的分离。由咪唑阳离子中具有较长烷基链（如辛基或十二烷基）的咪唑基离子液体可构建出足够稳定以进行长期操作的膜。
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