FR2256773A1 - Flat semi-permeable membrane with impervious edges - by impregnation of the porous support element in the area of the sealing ring - Google Patents

Flat semi-permeable membrane with impervious edges - by impregnation of the porous support element in the area of the sealing ring

Info

Publication number
FR2256773A1
FR2256773A1 FR7400144A FR7400144A FR2256773A1 FR 2256773 A1 FR2256773 A1 FR 2256773A1 FR 7400144 A FR7400144 A FR 7400144A FR 7400144 A FR7400144 A FR 7400144A FR 2256773 A1 FR2256773 A1 FR 2256773A1
Authority
FR
France
Prior art keywords
membrane
impregnation
area
porous
support element
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
FR7400144A
Other languages
French (fr)
Other versions
FR2256773B1 (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.)
Rhone Poulenc Industries SA
Original Assignee
Rhone Poulenc Industries SA
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 Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Priority to FR7400144A priority Critical patent/FR2256773A1/en
Publication of FR2256773A1 publication Critical patent/FR2256773A1/en
Application granted granted Critical
Publication of FR2256773B1 publication Critical patent/FR2256773B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/08—Flat membrane modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/08—Flat membrane modules
    • B01D63/082—Flat membrane modules comprising a stack of flat membranes
    • B01D63/084—Flat membrane modules comprising a stack of flat membranes at least one flow duct intersecting the membranes
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A semi-permeable membrane in reverse osmosis applicns. is supported on a porous element and sealed at its edges by a toric joint or other type of gasket. The porous element is prevented from distorting too much when the membrane is clamped in its housing, by impregnation of the pores of the porous element in the area where the membrane is in contact with the element and gasket, to make it more rigid. The impregnation of the element can be over the whole or part of the thickness, or can be by hot pressing of the material onto the surface of the element. The membrane may have a support comprising a central impervious metal on which are porous elements of filter paper treated with formo-phenolic resin, having an area in contact with the membrane impregnated with polystyrene 5-75% of their thickness. Used for semi-permeable membranes for treatment of solns. by reverse osmosis or ultrafiltration, e.g. de-salting of sea water or for the treatment of gas mixts. by gaseous permeation. The added rigidity to the support element enables the joint to form a better seal reducing losses between untreated and treated fluids, so that the appts. can work at higher pressure. Wear of membrane is reduced since lack of deformation of support element prevents stretching and tendency to tear.
FR7400144A 1974-01-03 1974-01-03 Flat semi-permeable membrane with impervious edges - by impregnation of the porous support element in the area of the sealing ring Granted FR2256773A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7400144A FR2256773A1 (en) 1974-01-03 1974-01-03 Flat semi-permeable membrane with impervious edges - by impregnation of the porous support element in the area of the sealing ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7400144A FR2256773A1 (en) 1974-01-03 1974-01-03 Flat semi-permeable membrane with impervious edges - by impregnation of the porous support element in the area of the sealing ring

Publications (2)

Publication Number Publication Date
FR2256773A1 true FR2256773A1 (en) 1975-08-01
FR2256773B1 FR2256773B1 (en) 1976-11-26

Family

ID=9133058

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400144A Granted FR2256773A1 (en) 1974-01-03 1974-01-03 Flat semi-permeable membrane with impervious edges - by impregnation of the porous support element in the area of the sealing ring

Country Status (1)

Country Link
FR (1) FR2256773A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635460A1 (en) * 1975-09-29 1977-04-07 Dresser Ind METHOD AND DEVICE FOR DETERMINING LIQUIDS
FR2386330A2 (en) * 1977-04-04 1978-11-03 Dresser Ind Liquid purificn. using rotating membrane packs - having internal spacer elements of more rigid material than the membranes
DE3131642A1 (en) * 1981-08-11 1983-03-10 Emil 4802 Halle Schneck Heat exchanger for viscous and pasty media, in particular mashes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635460A1 (en) * 1975-09-29 1977-04-07 Dresser Ind METHOD AND DEVICE FOR DETERMINING LIQUIDS
FR2386330A2 (en) * 1977-04-04 1978-11-03 Dresser Ind Liquid purificn. using rotating membrane packs - having internal spacer elements of more rigid material than the membranes
DE3131642A1 (en) * 1981-08-11 1983-03-10 Emil 4802 Halle Schneck Heat exchanger for viscous and pasty media, in particular mashes

Also Published As

Publication number Publication date
FR2256773B1 (en) 1976-11-26

Similar Documents

Publication Publication Date Title
FR2452948A1 (en) COMPOSITE SEMIPERMEABLE MEMBRANE AND PROCESS FOR MAKING SAME
AU8240182A (en) Desalination of sea water by reverse osmosis
GB2011804A (en) Gas Separation Membranes and Process for the Preparation Thereof
ATE479492T1 (en) USE OF A CHARGED POROUS MEMBRANE TO PRODUCE SOFT WATER
GB1528711A (en) Process for preparing a semi-permeable membrane
ES8706036A1 (en) Composite membrane.
ES477091A1 (en) Apparatus for desalination and purification of water by reverse osmosis and ultrafiltration
IE43442L (en) Treatment of fluids employing semi permeable membranes
CA2050169A1 (en) Reverse osmosis membranes of polyamideurethane
ES8100897A1 (en) Linear polyurethane ultrafilter and processes for use thereof
SE7409090L (en) SUPPORT PLATE FOR MEMBRANE.
FR2256773A1 (en) Flat semi-permeable membrane with impervious edges - by impregnation of the porous support element in the area of the sealing ring
FR2153334A1 (en) Rotary filter unit - with hollow shaft carrying parallel filter discs
GB1410480A (en) Fluid separation and apparatus and membrane support frames therefor
US3887194A (en) Membrane tensioning means and the use thereof
GB1477779A (en) Membrane separation apparatus
ES403706A1 (en) Treatment of sewage
FR2281781A1 (en) Membrane filter - for ultrafiltration, hyperfiltration and reverse osmosis at pressures of 2-100 bar
FR2050700A5 (en) Reverse osmosis membrane support
FR2216000A1 (en) Compact gas permeation filter - with alternate porous layers faced with membranes on both sides giving high area to volume ratio
Rozelle et al. Development of new reverse osmosis membranes for desalination
IT1030867B (en) Semipermeable composite membranes esp for fractionation of liquids - with outer polymeric skin active in reverse osmosis or gas permeation and an ultrafiltration membrane
FR2425876A1 (en) Sepn. of liq. mixt. e.g. aq. industrial effluent - using semipermeable silicone-based membrane, giving high sepn. coeffts.
JPH01288303A (en) Fluid separation element
NL7415083A (en) Membrane filter - with a stack of parallel flat units each having membranes on each face of a support

Legal Events

Date Code Title Description
ST Notification of lapse