Organic fluid permeation through fluoropolymer membranes

Nemser, Stuart M.; Kosaraju, Praveen; Bowser, John

Title: Organic fluid permeation through fluoropolymer membranes

Patent · Tue Jul 14 00:00:00 EDT 2015

OSTI ID:1193398

Nemser, Stuart M.; Kosaraju, Praveen; Bowser, John

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.

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Research Organization:: CMS Technologies Holdings, Inc., Newport, DE (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: SC0003561

Assignee:: CMS Technologies Holdings, Inc. (Newport, DE)

Patent Number(s):: 9,079,138

Application Number:: 13/279,904

OSTI ID:: 1193398

Resource Relation:: Patent File Date: 2011 Oct 24

Country of Publication:: United States

Language:: English

References (14)

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Method of gasifying or degasifying a liquid Nemser, Stuart M.; Olpin, Jay https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5876604 US Patent Document 5,876,604	patent	March 1999
Non-porous gas permeable membrane Nemser, Stuart M. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5914154 US Patent Document 5,914,154	patent	June 1999
Designed selectivity gas permeable membranes Avery, Daniel Lee; Shanbhag, Purushottam V. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6406517 US Patent Document 6,406,517	patent	June 2002
Method of producing nitrogen enriched air Callaghan, Kevin Patrick; Nemser, Stuart M. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6478852 US Patent Document 6,478,852	patent	November 2002
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Separations with Highly Selective Fluoropolymer Membranes Campos, Daniel; Lazzeri, Jonathan; Nemser, Stuart M. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110266220 US Patent Application 13/143081; 20110266220	patent-application	November 2011
Organic Fluid Permeation through Fluoropolymer Membranes Nemser, Stuart M.; Kosaraju, Praveen; Bowser, John https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120097612 US Patent Application 13/279904; 20120097612	patent-application	April 2012
Super-Surface Selective Nanomembranes Providing Simultaneous High Permeation Flux and High Selectivity Hu, Michael Z.; Simpson, John T.; Aytung, Tolga https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140116944 US Patent Application 13/666217; 20140116944	patent-application	May 2014
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Effects of residual solvent on gas separation properties of polyimide membranes Fu, Ywu-Jang; Hu, Chien-Chieh; Qui, Hsuan-zhi Separation and Purification Technology, Vol. 62, Issue 1, p. 175-182 https://doi.org/10.1016/j.seppur.2008.01.008	journal	August 2008
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