Supercritical CO2 Extraction of Copper Ions using 8-Hydroxyquinoline Derivatives for the Environment-friendly Technology

Fei CHANG; Moonsoo KIM; Younja KWON; Hakwon KIM

doi:10.11190/jer.13.295

Original Article

Supercritical CO₂ Extraction of Copper Ions using 8-Hydroxyquinoline Derivatives for the Environment-friendly Technology

Fei CHANG, Moonsoo KIM, Younja KWON, Hakwon KIM

Author information

Keywords: 8-hydroxyquinoline, supercritical carbon dioxide, solubility, copper extraction, chelating agent

JOURNAL FREE ACCESS

2008 Volume 13 Issue 4 Pages 295-298

DOI https://doi.org/10.11190/jer.13.295

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Abstract

New 8-hydroxyquinoline derivatives have been synthesized efficiently via Mannich condensation and subsequently tested for solubility and Cu(II) ion extraction in supercritical carbon dioxide (Sc-CO₂). All of newly synthesized compounds could disperse easily into Sc-CO₂ and show the moderate extraction efficiency for Cu(II) ion from solid matrix. It was concluded that these compounds could be potentially used as chelating agents for the Sc-CO₂ metal extraction.

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