离子液体作为镧系元素萃取的新型溶剂。
Ionic liquids as a novel solvent for lanthanide extraction.
作者信息
Nakashima Kazunori, Kubota Fukiko, Maruyama Tatsuo, Goto Masahiro
机构信息
Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 812-8581, Japan.
出版信息
Anal Sci. 2003 Aug;19(8):1097-8. doi: 10.2116/analsci.19.1097.
Octyl(phenyl)-N,N-diisobutylcarbamoylmethyl phosphine oxide (CMPO) dissolved in an ionic liquids, 1-butyl-3-methyl-imidazolium hexafluorophosphate, greatly enhances extractability and selectivity of lanthanide cations compared to that dissolved in conventional organic solvents; further, the recovery of lanthanides extracted into ionic liquids can be accomplished using several stripping solutions containing complexing agents. The possibility of utilizing ionic liquids as novel separation media in an industrial liquid-liquid extraction process was demonstrated.
溶解于离子液体1-丁基-3-甲基咪唑六氟磷酸盐中的辛基（苯基）-N，N-二异丁基氨甲酰甲基氧化膦（CMPO），与溶解于传统有机溶剂中的情况相比，极大地提高了镧系阳离子的萃取能力和选择性；此外，使用几种含有络合剂的反萃溶液，可以实现从离子液体中萃取的镧系元素的回收。证明了在工业液-液萃取过程中使用离子液体作为新型分离介质的可能性。
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