skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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 A
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}
}