CA2055446A1 - Perfluorodioxole membranes - Google Patents

Perfluorodioxole membranes

Info

Publication number
CA2055446A1
CA2055446A1 CA 2055446 CA2055446A CA2055446A1 CA 2055446 A1 CA2055446 A1 CA 2055446A1 CA 2055446 CA2055446 CA 2055446 CA 2055446 A CA2055446 A CA 2055446A CA 2055446 A1 CA2055446 A1 CA 2055446A1
Authority
CA
Canada
Prior art keywords
enrichment
separation
membranes
air
dioxole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2055446
Other languages
French (fr)
Other versions
CA2055446C (en
Inventor
Stuart Marshall Nemser
Ian Charles Roman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2055446A1 publication Critical patent/CA2055446A1/en
Application granted granted Critical
Publication of CA2055446C publication Critical patent/CA2055446C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74

Abstract

A selectively permeable membrane for the separation or enrichment of gaseous mixtures may be formed from amorphous polymers of perfluoro-2,2,-dimethyl-1,3-dioxole, esepcially copolymers with a complementary amount of at least one of tetrafluoroethylene, perfluoromethyl vinyl ether, vinylidene fluoride and chlorotrifluoroethylene.
Preferably, the polymer is a dipolymer containing 65-99 mole % of perfluoro-2,2-dimethyl-1,3-dioxole and having a glass transition temperature of at least 140°C. The membranes may be used for the separation or enrichment of a wide variety of gaseous mixtures, including oxygen enrichment of air, and separation ar enrichment of gaseous organic compounds in admixture with air, including separation or enrichment of the amount of fluorocarbon gases in air. The membranes exhibit a very high flux rate, compared with other glassy organic polymer membranes.
CA002055446A 1989-06-15 1990-06-13 Perfluorodioxole membranes Expired - Lifetime CA2055446C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US36640089A 1989-06-15 1989-06-15
US07/366,400 1989-06-15
PCT/CA1990/000195 WO1990015662A1 (en) 1989-06-15 1990-06-13 Perfluorodioxole membranes

Publications (2)

Publication Number Publication Date
CA2055446A1 true CA2055446A1 (en) 1990-12-16
CA2055446C CA2055446C (en) 2000-08-29

Family

ID=23442852

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002055446A Expired - Lifetime CA2055446C (en) 1989-06-15 1990-06-13 Perfluorodioxole membranes

Country Status (6)

Country Link
US (1) US5051114B2 (en)
EP (1) EP0477224B1 (en)
JP (1) JP3027606B2 (en)
AU (1) AU5830090A (en)
CA (1) CA2055446C (en)
WO (1) WO1990015662A1 (en)

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Also Published As

Publication number Publication date
EP0477224A1 (en) 1992-04-01
JP3027606B2 (en) 2000-04-04
WO1990015662A1 (en) 1990-12-27
AU5830090A (en) 1991-01-08
US5051114B1 (en) 1995-05-02
US5051114B2 (en) 1996-01-16
JPH04505881A (en) 1992-10-15
CA2055446C (en) 2000-08-29
EP0477224B1 (en) 1993-03-17
US5051114A (en) 1991-09-24

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