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FR2368289A1 - SOLUTION AND METHOD FOR THE PREPARATION OF SELECTIVE PERMEABILITY MEMBRANES - Google Patents

SOLUTION AND METHOD FOR THE PREPARATION OF SELECTIVE PERMEABILITY MEMBRANES

Info

Publication number
FR2368289A1
FR2368289A1 FR7731590A FR7731590A FR2368289A1 FR 2368289 A1 FR2368289 A1 FR 2368289A1 FR 7731590 A FR7731590 A FR 7731590A FR 7731590 A FR7731590 A FR 7731590A FR 2368289 A1 FR2368289 A1 FR 2368289A1
Authority
FR
France
Prior art keywords
solution
preparation
selective permeability
membranes
permeability membranes
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
FR7731590A
Other languages
French (fr)
Other versions
FR2368289B1 (en
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
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of FR2368289A1 publication Critical patent/FR2368289A1/en
Application granted granted Critical
Publication of FR2368289B1 publication Critical patent/FR2368289B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
    • C08L79/02—Polyamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011—Casting solutions therefor
    • B01D67/00111—Polymer pretreatment in the casting solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0083—Thermal after-treatment
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/38—Hydrophobic membranes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention se rapporte à la perméation sélective. Elle concerne notamment une solution pour la production de membranes à perméabilité sélective, qui comprend: a. un solvant aprotique, polaire, miscible avec l'eau,b. un polymère de condensation, c. un sel soluble dans le solvant, et d. un agent tensio-actif. Les membranes obtenues ont des propriétés améliorées et sont utiles pour le dessalage d'eau de mer, notammentThe invention relates to selective permeation. It relates in particular to a solution for the production of membranes with selective permeability, which comprises: a. an aprotic, polar solvent miscible with water, b. a condensation polymer, c. a salt soluble in the solvent, and d. a surfactant. The membranes obtained have improved properties and are useful for desalting seawater, in particular

FR7731590A 1976-10-21 1977-10-20 SOLUTION AND METHOD FOR THE PREPARATION OF SELECTIVE PERMEABILITY MEMBRANES Granted FR2368289A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73463176A 1976-10-21 1976-10-21

Publications (2)

Publication Number Publication Date
FR2368289A1 true FR2368289A1 (en) 1978-05-19
FR2368289B1 FR2368289B1 (en) 1984-06-08

Family

ID=24952479

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731590A Granted FR2368289A1 (en) 1976-10-21 1977-10-20 SOLUTION AND METHOD FOR THE PREPARATION OF SELECTIVE PERMEABILITY MEMBRANES

Country Status (7)

Country Link
JP (1) JPS5351184A (en)
CA (1) CA1107424A (en)
DE (1) DE2747408A1 (en)
FR (1) FR2368289A1 (en)
GB (1) GB1561200A (en)
IT (1) IT1143711B (en)
NL (1) NL7711594A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045435A1 (en) * 1980-07-25 1982-02-10 Akzo GmbH Polyamide membrane suitable for ultrafiltration and process for producing some
EP0176992A3 (en) * 1984-09-27 1987-12-09 E.I. Du Pont De Nemours And Company Reverse osmosis membranes and process for their preparation
EP0445853A1 (en) * 1990-02-12 1991-09-11 Stork Friesland B.V. Hydrophilic membrane, process for producing a hydrophilic membrane

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8320797D0 (en) * 1983-08-02 1983-09-01 Shell Int Research Very thin dense membrane

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2017387A1 (en) * 1968-09-04 1970-05-22 Du Pont
US3660281A (en) * 1970-05-06 1972-05-02 Du Pont Permeation separation membranes
US3775361A (en) * 1971-10-21 1973-11-27 Du Pont Preparation of stable concentrated solutions of aromatic nitrogen-linked condensation polymers
US3816303A (en) * 1972-12-20 1974-06-11 Us Interior Poly(n-amido)imides as semipermeable membranes
FR2208696A1 (en) * 1972-07-20 1974-06-28 Du Pont
FR2283921A1 (en) * 1974-09-05 1976-04-02 Sumitomo Chemical Co PROCESS FOR PREPARING MEMBRANES FOR THE SEPARATION OF SUBSTANCES
US3954607A (en) * 1972-05-01 1976-05-04 E. I. Du Pont De Nemours And Company Permselective membranes of diacyl hydrazide-containing aromatic polymers having selected metals complexed therewith
FR2392697A1 (en) * 1976-09-29 1978-12-29 Pharmaco Inc ULTRAFILTRATION MEMBRANES BASED ON HETERO-AROMATIC POLYMERS

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2017387A1 (en) * 1968-09-04 1970-05-22 Du Pont
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
US3660281A (en) * 1970-05-06 1972-05-02 Du Pont Permeation separation membranes
US3775361A (en) * 1971-10-21 1973-11-27 Du Pont Preparation of stable concentrated solutions of aromatic nitrogen-linked condensation polymers
US3954607A (en) * 1972-05-01 1976-05-04 E. I. Du Pont De Nemours And Company Permselective membranes of diacyl hydrazide-containing aromatic polymers having selected metals complexed therewith
FR2208696A1 (en) * 1972-07-20 1974-06-28 Du Pont
US3816303A (en) * 1972-12-20 1974-06-11 Us Interior Poly(n-amido)imides as semipermeable membranes
FR2283921A1 (en) * 1974-09-05 1976-04-02 Sumitomo Chemical Co PROCESS FOR PREPARING MEMBRANES FOR THE SEPARATION OF SUBSTANCES
FR2392697A1 (en) * 1976-09-29 1978-12-29 Pharmaco Inc ULTRAFILTRATION MEMBRANES BASED ON HETERO-AROMATIC POLYMERS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045435A1 (en) * 1980-07-25 1982-02-10 Akzo GmbH Polyamide membrane suitable for ultrafiltration and process for producing some
EP0176992A3 (en) * 1984-09-27 1987-12-09 E.I. Du Pont De Nemours And Company Reverse osmosis membranes and process for their preparation
EP0445853A1 (en) * 1990-02-12 1991-09-11 Stork Friesland B.V. Hydrophilic membrane, process for producing a hydrophilic membrane
US5122273A (en) * 1990-02-12 1992-06-16 Stork Friesland B. V. Hydrophilic membrane, process for producing a hydrophilic membrane

Also Published As

Publication number Publication date
CA1107424A (en) 1981-08-18
JPS6127085B2 (en) 1986-06-24
IT1143711B (en) 1986-10-22
DE2747408A1 (en) 1978-04-27
JPS5351184A (en) 1978-05-10
GB1561200A (en) 1980-02-13
FR2368289B1 (en) 1984-06-08
DE2747408C2 (en) 1987-06-25
NL7711594A (en) 1978-04-25

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Legal Events

Date Code Title Description
ST Notification of lapse