Method of filtering a target compound from a first solvent that is above its critical density
Abstract
The present invention is a method of separating a first compound having a macromolecular structure from a mixture. The first solvent is a fluid that is a gas at standard temperature and pressure and is at a density greater than a critical density of the fluid. A macromolecular structure containing a first compound is dissolved therein as a mixture. The mixture is contacted onto a selective barrier and the first solvent passed through the selective barrier thereby retaining the first compound, followed by recovering the first compound. By using a fluid that is a gas at standard temperature and pressure at a density greater than its critical density, separation without depressurization is fast and efficient.
- Inventors:
-
- Richland, WA
- Kennewick, WA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 873876
- Patent Number(s):
- 6264726
- Application Number:
- 09/410,165
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; filtering; target; compound; solvent; critical; density; separating; macromolecular; structure; mixture; fluid; gas; standard; temperature; pressure; containing; dissolved; therein; contacted; selective; barrier; passed; retaining; followed; recovering; separation; depressurization; fast; efficient; standard temperature; dissolved therein; critical density; molecular structure; structure containing; /95/
Citation Formats
Phelps, Max R, Yonker, Clement R, Fulton, John L, and Bowman, Lawrence E. Method of filtering a target compound from a first solvent that is above its critical density. United States: N. p., 2001.
Web.
Phelps, Max R, Yonker, Clement R, Fulton, John L, & Bowman, Lawrence E. Method of filtering a target compound from a first solvent that is above its critical density. United States.
Phelps, Max R, Yonker, Clement R, Fulton, John L, and Bowman, Lawrence E. Tue .
"Method of filtering a target compound from a first solvent that is above its critical density". United States. https://www.osti.gov/servlets/purl/873876.
@article{osti_873876,
title = {Method of filtering a target compound from a first solvent that is above its critical density},
author = {Phelps, Max R and Yonker, Clement R and Fulton, John L and Bowman, Lawrence E},
abstractNote = {The present invention is a method of separating a first compound having a macromolecular structure from a mixture. The first solvent is a fluid that is a gas at standard temperature and pressure and is at a density greater than a critical density of the fluid. A macromolecular structure containing a first compound is dissolved therein as a mixture. The mixture is contacted onto a selective barrier and the first solvent passed through the selective barrier thereby retaining the first compound, followed by recovering the first compound. By using a fluid that is a gas at standard temperature and pressure at a density greater than its critical density, separation without depressurization is fast and efficient.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {7}
}
Works referenced in this record:
Supercritical CO2 extraction coupled with nanofiltration separationApplications to natural products
journal, August 1998
- Sarrade, S. J.; Rios, G. M.; Carlès, M.
- Separation and Purification Technology, Vol. 14, Issue 1-3