IEC 166 |
| Huimin Luo, Nuclear Sciences & Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 and Sheng Dai, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6181, Oak Ridge, TN 37831. |
| The discovery of crown ethers has led to a new class of ligands for alkali and alkaline earth metal cations. Crown ethers and related macrocycles have found wide application in the design of novel solvent extraction systems that are selective for fission products, such as Cs+ and Sr2+, based on the sizes of the crown-ether rings. Room temperature ionic liquids that are liquid at ambient temperatures can act as solvents for a broad spectrum of chemical species. A very unique intrinsic property of these melts is that they consist only of ions and that they can be made hydrophobic! The novel dual properties of these new ionic liquids make them efficient solvents for the extraction of ionic species from aqueous solutions. In this presentation, we will discuss our recent results on the solvent extraction of Na+, K+, Cs+ and Sr2+ by ionic liquids containing Calix[4]arene-bis(tert-octylbenzo-crown-6) and dicyclohexano-18-crown-6. |
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General Poster Session
5:00 PM-7:00 PM, Tuesday, March 25, 2003 Convention Center -- Hall G, Poster
Division of Industrial and Engineering Chemistry |