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Title: Organic fluid permeation through fluoropolymer membranes

Abstract

Separation of the components of liquid mixtures is achieved by contacting a liquid mixture with a nonporous membrane having a fluoropolymer selectively permeable layer and imposing a pressure gradient across the membrane from feed side to permeate side. Unusually high transmembrane flux is obtained when the membrane is subjected to one or more process conditions prior to separation. These include (a) leaving some residual amount of membrane casting solvent in the membrane, and (b) contacting the membrane with a component of the mixture to be separated for a duration effective to saturate the membrane with the component.

Inventors:
; ;
Issue Date:
Research Org.:
CMS Technologies Holdings, Inc., Newport, DE (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1193398
Patent Number(s):
9079138
Application Number:
13/279,904
Assignee:
CMS Technologies Holdings, Inc. (Newport, DE)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
SC0003561
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Oct 24
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Nemser, Stuart M., Kosaraju, Praveen, and Bowser, John. Organic fluid permeation through fluoropolymer membranes. United States: N. p., 2015. Web.
Nemser, Stuart M., Kosaraju, Praveen, & Bowser, John. Organic fluid permeation through fluoropolymer membranes. United States.
Nemser, Stuart M., Kosaraju, Praveen, and Bowser, John. Tue . "Organic fluid permeation through fluoropolymer membranes". United States. https://www.osti.gov/servlets/purl/1193398.
@article{osti_1193398,
title = {Organic fluid permeation through fluoropolymer membranes},
author = {Nemser, Stuart M. and Kosaraju, Praveen and Bowser, John},
abstractNote = {Separation of the components of liquid mixtures is achieved by contacting a liquid mixture with a nonporous membrane having a fluoropolymer selectively permeable layer and imposing a pressure gradient across the membrane from feed side to permeate side. Unusually high transmembrane flux is obtained when the membrane is subjected to one or more process conditions prior to separation. These include (a) leaving some residual amount of membrane casting solvent in the membrane, and (b) contacting the membrane with a component of the mixture to be separated for a duration effective to saturate the membrane with the component.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {7}
}

Works referenced in this record:

High permeable PTMSP/PAN composite membranes for solvent nanofiltration
journal, May 2009


Effects of residual solvent on gas separation properties of polyimide membranes
journal, August 2008


Transport of Organic Solutes through Amorphous Teflon AF Films
journal, November 2005