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.degree. 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.
- Inventors:
-
- Arvada, CO
- Palermo, IT
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- OSTI Identifier:
- 867567
- Patent Number(s):
- 4964995
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- supercritical; separation; process; complex; organic; mixtures; disclosed; separating; molecular; weight; components; aqueous; preparing; solution; carbon; dioxide; effective; amount; entrainer; modify; solvation; power; extract; preselected; maintained; temperature; 70; degree; pressure; 500; psi; contacted; maintaining; reach; equilibrium; finally; extracted; portion; mixture; isolated; supercritical carbon; effective amount; separation process; carbon dioxide; molecular weight; aqueous organic; organic mixtures; complex organic; organic mixture; /210/162/203/
Citation Formats
Chum, Helena L, and Filardo, Giuseppe. Supercritical separation process for complex organic mixtures. United States: N. p., 1990.
Web.
Chum, Helena L, & Filardo, Giuseppe. Supercritical separation process for complex organic mixtures. United States.
Chum, Helena L, and Filardo, Giuseppe. Mon .
"Supercritical separation process for complex organic mixtures". United States. https://www.osti.gov/servlets/purl/867567.
@article{osti_867567,
title = {Supercritical separation process for complex organic mixtures},
author = {Chum, Helena L and Filardo, Giuseppe},
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.degree. 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}