Quantitative extraction of aqueous alkali metal ions using supercritical carbon dioxide and polyethylene glycol ligands

Shunsuke Mochizuki, Richard L. Smith, Hiroshi Inomata

Research output: Contribution to journalArticle

13 Citations (Scopus)

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 languageEnglish
Pages (from-to)1381-1382
Number of pages2
JournalChemical Communications
Issue number15
DOIs
Publication statusPublished - 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

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