Metal extraction with supercritical fluids
Conference
·
OSTI ID:370034
- Univ. of Idaho, Moscow, ID (United States)
Metal ions in solid and liquid materials can be extracted by supercritical CO{sub 2} containing a suitable ligand. Several different types of ligands including dithiocarbamates, {beta}-diketones, crown ethers, and organophosphorus reagents have been tested for their abilities to extract heavy metals in supercritical CO{sub 2}. Fluorine substituted ligands are particularly effective in supercritical fluid extraction because of the high solubilities of fluorinated metal chelates in CO{sub 2}. Factors affecting the extraction of heavy metals from solid and liquid samples are presented. Potential applications of this novel extraction technique for removing toxic metals from waste materials are discussed.
- OSTI ID:
- 370034
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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