JPS5615804A - Semipermeable composite membrane having stable selective separation capacity - Google Patents

Semipermeable composite membrane having stable selective separation capacity

Info

Publication number
JPS5615804A
JPS5615804A JP9149879A JP9149879A JPS5615804A JP S5615804 A JPS5615804 A JP S5615804A JP 9149879 A JP9149879 A JP 9149879A JP 9149879 A JP9149879 A JP 9149879A JP S5615804 A JPS5615804 A JP S5615804A
Authority
JP
Japan
Prior art keywords
film layer
composite membrane
barrier film
solvent resistance
separation capacity
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
JP9149879A
Other languages
Japanese (ja)
Other versions
JPS6211881B2 (en
Inventor
Tetsuo Watanabe
Norio Harumiya
Masaru Kurihara
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP9149879A priority Critical patent/JPS5615804A/en
Priority to PCT/JP1980/000165 priority patent/WO1981000217A1/en
Priority to EP80901335A priority patent/EP0044872B1/en
Priority to AT80901335T priority patent/ATE15607T1/en
Priority to DE8080901335T priority patent/DE3071096D1/en
Publication of JPS5615804A publication Critical patent/JPS5615804A/en
Publication of JPS6211881B2 publication Critical patent/JPS6211881B2/ja
Granted 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
    • B01D71/58—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/1216—Three or more layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE:To obtain a reverse osmotic membrane excellent in durability, strength, and solvent resistance by superposing a barrier film layer of a crosslinked polymer polymerized by an acid catalyst and a protective film layer of a composite membrane consisting of a partially saponified product on a porous substrate. CONSTITUTION:On the surface of the anisotropic porous substrate of polysulfone, polyvinyl chloride, etc., a thickness of approx. 0.01-0.1mu of the barrier film layer of a bridged polymer composed primarily of a compound with an acid-polymerizable isocyanurate main chain and/or furfuryl alcohol is formed, and then on the barrier film layer, a protective layer with an optical interference stripe, having high water insolubility and high solvent resistance, composed of the partially saponified products of polyvinyl alcohol and/or polyvinyl acetate is formed. The semipermeable composite membrane thus obtained has high resistance to mechanical damage, highly stable separation capacity for a long period of time, and high solvent resistance.
JP9149879A 1979-07-20 1979-07-20 Semipermeable composite membrane having stable selective separation capacity Granted JPS5615804A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP9149879A JPS5615804A (en) 1979-07-20 1979-07-20 Semipermeable composite membrane having stable selective separation capacity
PCT/JP1980/000165 WO1981000217A1 (en) 1979-07-20 1980-07-21 Process for selectively separating water-soluble valuable materials from an aqueous solution containing same
EP80901335A EP0044872B1 (en) 1979-07-20 1980-07-21 Process for selectively separating water-soluble valuable materials from an aqueous solution containing same
AT80901335T ATE15607T1 (en) 1979-07-20 1980-07-21 PROCESS FOR SELECTIVE SEPARATION OF WATER-SOLUBLE, VALUABLE MATERIALS FROM AQUEOUS SOLUTIONS.
DE8080901335T DE3071096D1 (en) 1979-07-20 1980-07-21 Process for selectively separating water-soluble valuable materials from an aqueous solution containing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9149879A JPS5615804A (en) 1979-07-20 1979-07-20 Semipermeable composite membrane having stable selective separation capacity

Publications (2)

Publication Number Publication Date
JPS5615804A true JPS5615804A (en) 1981-02-16
JPS6211881B2 JPS6211881B2 (en) 1987-03-16

Family

ID=14028069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9149879A Granted JPS5615804A (en) 1979-07-20 1979-07-20 Semipermeable composite membrane having stable selective separation capacity

Country Status (1)

Country Link
JP (1) JPS5615804A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814908A (en) * 1981-07-15 1983-01-28 Nitto Electric Ind Co Ltd Preparation of composite semi-permeable membrane
WO1983000443A1 (en) * 1981-08-03 1983-02-17 Kawaguchi, Takeyuki Composite semipermeable membrane, process for its production, and methode of its use
JPS5892402A (en) * 1981-11-27 1983-06-01 Teijin Ltd Preparation of composite membrane having selective permeability of organic substance
JPS602946A (en) * 1983-06-20 1985-01-09 Fujitsu Ltd Positive type resist material
JPS61186329A (en) * 1985-02-15 1986-08-20 Agency Of Ind Science & Technol Separation of aqueous solution of organic acid
JP2010201303A (en) * 2009-03-02 2010-09-16 Toray Ind Inc Composite semipermeable membrane

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814908A (en) * 1981-07-15 1983-01-28 Nitto Electric Ind Co Ltd Preparation of composite semi-permeable membrane
JPH0221292B2 (en) * 1981-07-15 1990-05-14 Nitto Denko Corp
WO1983000443A1 (en) * 1981-08-03 1983-02-17 Kawaguchi, Takeyuki Composite semipermeable membrane, process for its production, and methode of its use
JPS5892402A (en) * 1981-11-27 1983-06-01 Teijin Ltd Preparation of composite membrane having selective permeability of organic substance
JPH0114801B2 (en) * 1981-11-27 1989-03-14 Teijin Ltd
JPS602946A (en) * 1983-06-20 1985-01-09 Fujitsu Ltd Positive type resist material
JPH0377986B2 (en) * 1983-06-20 1991-12-12 Fujitsu Ltd
JPS61186329A (en) * 1985-02-15 1986-08-20 Agency Of Ind Science & Technol Separation of aqueous solution of organic acid
JPH0528691B2 (en) * 1985-02-15 1993-04-27 Kogyo Gijutsuin
JP2010201303A (en) * 2009-03-02 2010-09-16 Toray Ind Inc Composite semipermeable membrane

Also Published As

Publication number Publication date
JPS6211881B2 (en) 1987-03-16

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