FR2099286A5 - Semi-permeable membranes - used for desalination of water - Google Patents

Semi-permeable membranes - used for desalination of water

Info

Publication number
FR2099286A5
FR2099286A5 FR7122514A FR7122514A FR2099286A5 FR 2099286 A5 FR2099286 A5 FR 2099286A5 FR 7122514 A FR7122514 A FR 7122514A FR 7122514 A FR7122514 A FR 7122514A FR 2099286 A5 FR2099286 A5 FR 2099286A5
Authority
FR
France
Prior art keywords
water
desalination
semi
filler
permeable 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.)
Expired
Application number
FR7122514A
Other languages
French (fr)
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of FR2099286A5 publication Critical patent/FR2099286A5/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/148—Organic/inorganic mixed matrix membranes
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Abstract

Semi-permeable membranes for passage of water and retention of dissolved impurities, comprising an osmotic skin of a polymeric film-forming material having very small passages, and a porous substrate, also of a film-forming polymeric material, contain particulate filler having particle diameter =0.15 m mu in weight ratio of filler:polymer = 1:50 to 1:1. Cellulose esters or ethers are suitable polymer, and SiO2 is suitable filler material. Membranes are used in desalination of water by reverse osmosis, they are stable in use and have high throughput over extended periods of time.
FR7122514A 1970-06-22 1971-06-21 Semi-permeable membranes - used for desalination of water Expired FR2099286A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4805770A 1970-06-22 1970-06-22

Publications (1)

Publication Number Publication Date
FR2099286A5 true FR2099286A5 (en) 1972-03-10

Family

ID=21952511

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7122514A Expired FR2099286A5 (en) 1970-06-22 1971-06-21 Semi-permeable membranes - used for desalination of water

Country Status (9)

Country Link
AU (1) AU2874571A (en)
CA (1) CA940677A (en)
DE (1) DE2129014A1 (en)
FR (1) FR2099286A5 (en)
IL (1) IL36815A0 (en)
IT (1) IT988536B (en)
MT (1) MTP695B (en)
NL (1) NL7108569A (en)
ZA (1) ZA712977B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195469A1 (en) * 1972-08-09 1974-03-08 Unilever Nv
EP0004943A1 (en) * 1978-04-13 1979-10-31 Sartorius GmbH. Asymmetric cellulose triacetate-based ultrafiltration membranes and method of fabrication thereof
EP0005193A1 (en) * 1978-04-13 1979-11-14 Sartorius GmbH. Asymmetric cellulose hydrate-based ultrafiltration membranes and method for the fabrication thereof
EP0241995A1 (en) * 1986-04-07 1987-10-21 "Studiecentrum voor Kernenergie", "S.C.K." Method for preparing a composite semi-permeable membrane
WO2001003815A2 (en) * 1999-07-09 2001-01-18 Neubert, Susanne Membrane used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862030A (en) * 1972-12-13 1975-01-21 Amerace Esna Corp Microporous sub-micron filter media
DE3141672A1 (en) * 1981-10-21 1983-05-05 Bayer Ag, 5090 Leverkusen SEMIPERMEABLE MEMBRANES

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195469A1 (en) * 1972-08-09 1974-03-08 Unilever Nv
EP0004943A1 (en) * 1978-04-13 1979-10-31 Sartorius GmbH. Asymmetric cellulose triacetate-based ultrafiltration membranes and method of fabrication thereof
EP0005193A1 (en) * 1978-04-13 1979-11-14 Sartorius GmbH. Asymmetric cellulose hydrate-based ultrafiltration membranes and method for the fabrication thereof
EP0241995A1 (en) * 1986-04-07 1987-10-21 "Studiecentrum voor Kernenergie", "S.C.K." Method for preparing a composite semi-permeable membrane
WO2001003815A2 (en) * 1999-07-09 2001-01-18 Neubert, Susanne Membrane used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid
WO2001003815A3 (en) * 1999-07-09 2001-05-25 Neubert Susanne Membrane used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid

Also Published As

Publication number Publication date
CA940677A (en) 1974-01-29
AU2874571A (en) 1972-11-16
ZA712977B (en) 1972-01-26
IT988536B (en) 1975-04-30
NL7108569A (en) 1971-12-24
DE2129014A1 (en) 1971-12-23
IL36815A0 (en) 1971-07-28
MTP695B (en) 1971-10-04

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Legal Events

Date Code Title Description
ST Notification of lapse