FR2148624A1 - Semipermeable membrane - consisting of two layers of polymer material with different retention rates for dissolved solids - Google Patents

Semipermeable membrane - consisting of two layers of polymer material with different retention rates for dissolved solids

Info

Publication number
FR2148624A1
FR2148624A1 FR7229092A FR7229092A FR2148624A1 FR 2148624 A1 FR2148624 A1 FR 2148624A1 FR 7229092 A FR7229092 A FR 7229092A FR 7229092 A FR7229092 A FR 7229092A FR 2148624 A1 FR2148624 A1 FR 2148624A1
Authority
FR
France
Prior art keywords
membrane
layers
flow rate
semipermeable membrane
polymer material
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.)
Withdrawn
Application number
FR7229092A
Other languages
English (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.)
Consiglio Nazionale delle Richerche CNR
Original Assignee
Consiglio Nazionale delle Richerche CNR
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 Consiglio Nazionale delle Richerche CNR filed Critical Consiglio Nazionale delle Richerche CNR
Publication of FR2148624A1 publication Critical patent/FR2148624A1/fr
Withdrawn legal-status Critical Current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
    • B01D69/1411—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes containing dispersed material in a continuous matrix
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
FR7229092A 1971-08-11 1972-08-11 Semipermeable membrane - consisting of two layers of polymer material with different retention rates for dissolved solids Withdrawn FR2148624A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT27424/71A IT1012016B (it) 1971-08-11 1971-08-11 Metodo per la preparazione di mem brane iperfiltranti in particolare per la dissalazione delle acque salmastre e marine e membrane pro dotte secondo tale metodo

Publications (1)

Publication Number Publication Date
FR2148624A1 true FR2148624A1 (en) 1973-03-23

Family

ID=11221612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229092A Withdrawn FR2148624A1 (en) 1971-08-11 1972-08-11 Semipermeable membrane - consisting of two layers of polymer material with different retention rates for dissolved solids

Country Status (7)

Country Link
JP (1) JPS4831183A (fr)
BE (1) BE787345A (fr)
DE (1) DE2239604A1 (fr)
ES (1) ES405734A1 (fr)
FR (1) FR2148624A1 (fr)
IT (1) IT1012016B (fr)
NL (1) NL7210933A (fr)

Also Published As

Publication number Publication date
ES405734A1 (es) 1975-09-16
JPS4831183A (fr) 1973-04-24
DE2239604A1 (de) 1973-02-22
BE787345A (fr) 1973-02-09
IT1012016B (it) 1977-03-10
NL7210933A (fr) 1973-02-13

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Legal Events

Date Code Title Description
ST Notification of lapse