Supercritical separation process for complex organic mixtures
Abstract
A process is disclosed for separating low molecular weight components from complex aqueous organic mixtures. The process includes preparing a separation solution of supercritical carbon dioxide with an effective amount of an entrainer to modify the solvation power of the supercritical carbon dioxide and extract preselected low molecular weight components. The separation solution is maintained at a temperature of at least about 70 C and a pressure of at least about 1,500 psi. The separation solution is then contacted with the organic mixtures while maintaining the temperature and pressure as above until the mixtures and solution reach equilibrium to extract the preselected low molecular weight components from the organic mixtures. Finally, the entrainer/extracted components portion of the equilibrium mixture is isolated from the separation solution. 1 fig.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7070265
- Patent Number(s):
- 4964995
- Application Number:
- PPN: US 7-368170
- Assignee:
- Midwest Research Inst., Kansas City, MO (United States)
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 16 Jun 1989
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ORGANIC COMPOUNDS; SUPERCRITICAL GAS EXTRACTION; AQUEOUS SOLUTIONS; CARBON DIOXIDE; ENTRAINMENT; HIGH PRESSURE; TEMPERATURE RANGE 0273-0400 K; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DISPERSIONS; EXTRACTION; MIXTURES; OXIDES; OXYGEN COMPOUNDS; SEPARATION PROCESSES; SOLUTIONS; SOLVENT EXTRACTION; TEMPERATURE RANGE; 400105* - Separation Procedures
Citation Formats
Chum, H L, and Filardo, G. Supercritical separation process for complex organic mixtures. United States: N. p., 1990.
Web.
Chum, H L, & Filardo, G. Supercritical separation process for complex organic mixtures. United States.
Chum, H L, and Filardo, G. Tue .
"Supercritical separation process for complex organic mixtures". United States.
@article{osti_7070265,
title = {Supercritical separation process for complex organic mixtures},
author = {Chum, H L and Filardo, G},
abstractNote = {A process is disclosed for separating low molecular weight components from complex aqueous organic mixtures. The process includes preparing a separation solution of supercritical carbon dioxide with an effective amount of an entrainer to modify the solvation power of the supercritical carbon dioxide and extract preselected low molecular weight components. The separation solution is maintained at a temperature of at least about 70 C and a pressure of at least about 1,500 psi. The separation solution is then contacted with the organic mixtures while maintaining the temperature and pressure as above until the mixtures and solution reach equilibrium to extract the preselected low molecular weight components from the organic mixtures. Finally, the entrainer/extracted components portion of the equilibrium mixture is isolated from the separation solution. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {10}
}