Ultrathin-skinned asymmetric membranes by immiscible solvents treatment
Abstract
Improved semipermeable asymmetric fluid separation membranes useful in gas, vapor and liquid separations are disclosed. The membranes are prepared by substantially filling the pores of asymmetric cellulosic semipermeable membranes having a finely porous layer on one side thereof with a water immiscible organic liquid, followed by contacting the finely porous layer with water.
- Inventors:
-
- Bend, OR
- Issue Date:
- Research Org.:
- Bend Research Inc
- OSTI Identifier:
- 867194
- Patent Number(s):
- 4883593
- Assignee:
- Bend Research, Inc. (Bend, OR)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- DOE Contract Number:
- AC03-84ER80159
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- ultrathin-skinned; asymmetric; membranes; immiscible; solvents; treatment; improved; semipermeable; fluid; separation; useful; gas; vapor; liquid; separations; disclosed; prepared; substantially; filling; pores; cellulosic; finely; porous; layer; water; organic; followed; contacting; semipermeable membranes; asymmetric membranes; porous layer; membranes useful; semipermeable membrane; permeable membrane; organic liquid; separation membrane; water immiscible; separation membranes; cellulosic semipermeable; fluid separation; substantially filling; permeable membranes; finely porous; immiscible organic; miscible solvents; substantially fill; asymmetric cellulosic; /210/96/264/
Citation Formats
Friesen, Dwayne T, and Babcock, Walter C. Ultrathin-skinned asymmetric membranes by immiscible solvents treatment. United States: N. p., 1989.
Web.
Friesen, Dwayne T, & Babcock, Walter C. Ultrathin-skinned asymmetric membranes by immiscible solvents treatment. United States.
Friesen, Dwayne T, and Babcock, Walter C. Sun .
"Ultrathin-skinned asymmetric membranes by immiscible solvents treatment". United States. https://www.osti.gov/servlets/purl/867194.
@article{osti_867194,
title = {Ultrathin-skinned asymmetric membranes by immiscible solvents treatment},
author = {Friesen, Dwayne T and Babcock, Walter C},
abstractNote = {Improved semipermeable asymmetric fluid separation membranes useful in gas, vapor and liquid separations are disclosed. The membranes are prepared by substantially filling the pores of asymmetric cellulosic semipermeable membranes having a finely porous layer on one side thereof with a water immiscible organic liquid, followed by contacting the finely porous layer with water.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}