Abstract
Quantitative extraction (30-70%) of alkali metal ions (K+, Na+: 1.7 x 10-4 mol dm-3) from aqueous solutions with supercritical carbon dioxide (40 °C, 10-18 MPa) could be achieved using glymes (triethylene glycol dimethyl ether (triglyme: 3G), tetraethylene glycol dimethyl ether (tetraglyme: 4G)) and the addition of pentadecafluoro-n-octanoic acid (HPFOA) that supplies a CO2-philic counter ion and makes the metal-ligand complex soluble in the CO2 solvent via counter ion exchange.
Original language | English |
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Pages (from-to) | 1381-1382 |
Number of pages | 2 |
Journal | Chemical Communications |
Issue number | 15 |
DOIs | |
Publication status | Published - 2000 Aug 7 |
ASJC Scopus subject areas
- Catalysis
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Chemistry(all)
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry