WO1994004253A3 - Polyazole polymer-based membranes for fluid separation - Google Patents

Polyazole polymer-based membranes for fluid separation Download PDF

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Publication number
WO1994004253A3
WO1994004253A3 PCT/US1993/007573 US9307573W WO9404253A3 WO 1994004253 A3 WO1994004253 A3 WO 1994004253A3 US 9307573 W US9307573 W US 9307573W WO 9404253 A3 WO9404253 A3 WO 9404253A3
Authority
WO
WIPO (PCT)
Prior art keywords
membranes
fluid separation
based membranes
polyazole polymer
reverse osmosis
Prior art date
Application number
PCT/US1993/007573
Other languages
French (fr)
Other versions
WO1994004253A2 (en
Inventor
Gregory K. Rickle
Original Assignee
The Dow Chemical Company
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 The Dow Chemical Company filed Critical The Dow Chemical Company
Publication of WO1994004253A2 publication Critical patent/WO1994004253A2/en
Publication of WO1994004253A3 publication Critical patent/WO1994004253A3/en

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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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/32—Polythiazoles; Polythiadiazoles

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Polyazole-based polymer membranes, such as polyoxadiazole or -triazole-based membranes, are disclosed. The membranes are useful in gas separation and reverse osmosis processes. The gas separation membranes of the present invention exhibit improved methane separation factors, whereas the reverse osmosis membranes present high chlorine resistance as well as a salt rejection of at least 99 percent.
PCT/US1993/007573 1992-08-13 1993-08-12 Polyazole polymer-based membranes for fluid separation WO1994004253A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92924692A 1992-08-13 1992-08-13
US07/929,246 1992-08-13

Publications (2)

Publication Number Publication Date
WO1994004253A2 WO1994004253A2 (en) 1994-03-03
WO1994004253A3 true WO1994004253A3 (en) 1994-05-26

Family

ID=25457546

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/007573 WO1994004253A2 (en) 1992-08-13 1993-08-12 Polyazole polymer-based membranes for fluid separation

Country Status (1)

Country Link
WO (1) WO1994004253A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130206694A1 (en) * 2012-02-13 2013-08-15 King Abdullah University Of Science And Technology Membrane for water purification
US10919002B2 (en) 2018-08-28 2021-02-16 Saudi Arabian Oil Company Fluorinated polytriazole membrane materials for gas separation technology
CN109438982A (en) * 2018-09-29 2019-03-08 刘文熙 A kind of aromatic heterocyclic polymer film of high-strength anti-flaming and its preparation method and application
CN109337364A (en) * 2018-09-29 2019-02-15 潘鑫 A kind of aromatic heterocyclic polymer film of high intensity and its preparation method and application
US11926758B2 (en) 2020-07-17 2024-03-12 Saudi Arabian Oil Company Polytriazole coating materials for metal substrates
US11814473B2 (en) 2020-07-17 2023-11-14 Saudi Arabian Oil Company Polytriazole copolymer compositions

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067804A (en) * 1974-12-19 1978-01-10 The Furukawa Electric Company, Limited Solute-separating membrane
GB2093460A (en) * 1980-08-22 1982-09-02 Pavlov Oleg M Porous polymer membrane and method of making it
US4500701A (en) * 1982-09-27 1985-02-19 Standard Oil Company (Indiana) Co-polyoxadiazoles based on 5-t-butylisosphthalic acid
SU1248629A1 (en) * 1985-03-12 1986-08-07 Предприятие П/Я М-5885 Method of producing semi-permeable polymeric membranes
NL8700758A (en) * 1987-03-31 1988-10-17 Stichting Membraanfiltratie Semipermeable membrane with poly:phenylene:triazole gps, - used in micro-filtration, ultrafiltration, reversed osmosis, pervaporation, vapour permeation, and gas, liq. and vapour sepn.
DE4021048A1 (en) * 1990-06-29 1992-01-02 Akad Wissenschaften Ddr Solvent mixt. for aromatic poly-1,3,4-oxadiazole(s) - comprises soln. of aluminium chloride or tri:fluoromethane-sulphonic acid in nitroalkane and=or nitro-aromatic cpd.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067804A (en) * 1974-12-19 1978-01-10 The Furukawa Electric Company, Limited Solute-separating membrane
GB2093460A (en) * 1980-08-22 1982-09-02 Pavlov Oleg M Porous polymer membrane and method of making it
US4500701A (en) * 1982-09-27 1985-02-19 Standard Oil Company (Indiana) Co-polyoxadiazoles based on 5-t-butylisosphthalic acid
SU1248629A1 (en) * 1985-03-12 1986-08-07 Предприятие П/Я М-5885 Method of producing semi-permeable polymeric membranes
NL8700758A (en) * 1987-03-31 1988-10-17 Stichting Membraanfiltratie Semipermeable membrane with poly:phenylene:triazole gps, - used in micro-filtration, ultrafiltration, reversed osmosis, pervaporation, vapour permeation, and gas, liq. and vapour sepn.
DE4021048A1 (en) * 1990-06-29 1992-01-02 Akad Wissenschaften Ddr Solvent mixt. for aromatic poly-1,3,4-oxadiazole(s) - comprises soln. of aluminium chloride or tri:fluoromethane-sulphonic acid in nitroalkane and=or nitro-aromatic cpd.

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
A. KLIMMEK: "Neue stabile Membranpolymere", DIE ANGEWANDTE MAKROMOLEKULARE CHEMIE, vol. 109/110, 1982, BASEL, CH, pages 165 - 170, XP001282755 *
B. GEBBEN: "Gas separation properties of a thermally stable and chemically resistant polytriazole membrane", JOURNAL OF MEMBRANE SCIENCE, vol. 46, no. 1, September 1989 (1989-09-01), AMSTERDAM, NL, pages 29 - 41, XP000114358, DOI: doi:10.1016/S0376-7388(00)81168-0 *
DATABASE WPI Section Ch Week 8845, Derwent World Patents Index; Class A10, AN 88-320601 *
SOVIET INVENTIONS ILLUSTRATED Section Ch Week 8713, Derwent World Patents Index; Class A88, AN 87-092165 *

Also Published As

Publication number Publication date
WO1994004253A2 (en) 1994-03-03

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