Supercritical Fluids
Ethanol 240.9 °C 64.1 atm
CO2 + 7 mol% Et: 52 °C 97 atm
- Controllable dissolving power
- SCF easily recoverable from extract
- Non-toxic solvents, no residues
- Separations not possible by traditional methods can be effected
- Thermally labile compounds can be extracted, low temperature use
- Relatively inexpensive solvents, continuously recycled.
- Elevated pressures required
- High capital equipment investment