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Title: 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:
 [1];  [2];  [1];  [1]
  1. Richland, WA
  2. Kennewick, WA
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
873876
Patent Number(s):
US 6264726
Application Number:
09/410,165
Assignee:
Battelle Memorial Institute (Richland, WA)
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}
}

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