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Title: 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:
 [1];  [1]
  1. (Bend, OR)
Issue Date:
Research Org.:
Bend Research Inc
OSTI Identifier:
867194
Patent Number(s):
4883593
Assignee:
Bend Research, Inc. (Bend, OR) OAK
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 = {1989},
month = {1}
}

Patent:

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