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

Shunsuke Mochizuki; Richard L. Smith; Hiroshi Inomata

doi:10.1039/b003411h

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 journal › Article › peer-review

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 language	English
Pages (from-to)	1381-1382
Number of pages	2
Journal	Chemical Communications
Issue number	15
DOIs	https://doi.org/10.1039/b003411h
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

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AU - Mochizuki, Shunsuke

AU - Smith, Richard L.

AU - Inomata, Hiroshi

PY - 2000/8/7

Y1 - 2000/8/7

N2 - 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.

AB - 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.

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

Abstract

ASJC Scopus subject areas

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