DE2401428C2 - Anisotrope Membrane für die umgekehrte Osmose und Verfahren zu ihrer Herstellung - Google Patents

Anisotrope Membrane für die umgekehrte Osmose und Verfahren zu ihrer Herstellung

Info

Publication number
DE2401428C2
DE2401428C2 DE2401428A DE2401428A DE2401428C2 DE 2401428 C2 DE2401428 C2 DE 2401428C2 DE 2401428 A DE2401428 A DE 2401428A DE 2401428 A DE2401428 A DE 2401428A DE 2401428 C2 DE2401428 C2 DE 2401428C2
Authority
DE
Germany
Prior art keywords
membrane
water
solution
membranes
stage
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
DE2401428A
Other languages
German (de)
English (en)
Other versions
DE2401428A1 (de
Inventor
Giovanni Ferrara Baruzzi
Lino Casalecchio Bologna Credali
Vincenzo Mailand/Milano Guidotti
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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of DE2401428A1 publication Critical patent/DE2401428A1/de
Application granted granted Critical
Publication of DE2401428C2 publication Critical patent/DE2401428C2/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/40—Polyamides containing oxygen in the form of ether groups
    • 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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polyamides (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE2401428A 1973-01-16 1974-01-12 Anisotrope Membrane für die umgekehrte Osmose und Verfahren zu ihrer Herstellung Expired DE2401428C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19247/73A IT978187B (it) 1973-01-16 1973-01-16 Membrane anisotrope per osmosi inversa ad alto flusso ed ele vata reiezione salina a base di polipiperazinammidi e procedi mento di preparazione relativo

Publications (2)

Publication Number Publication Date
DE2401428A1 DE2401428A1 (de) 1974-07-18
DE2401428C2 true DE2401428C2 (de) 1985-11-14

Family

ID=11156091

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2401428A Expired DE2401428C2 (de) 1973-01-16 1974-01-12 Anisotrope Membrane für die umgekehrte Osmose und Verfahren zu ihrer Herstellung

Country Status (12)

Country Link
JP (1) JPS574361B2 (fr)
AU (1) AU6450974A (fr)
BE (1) BE809757A (fr)
CA (1) CA1024711A (fr)
DE (1) DE2401428C2 (fr)
ES (1) ES422290A1 (fr)
FR (1) FR2324335A1 (fr)
GB (1) GB1402247A (fr)
IL (1) IL44156A (fr)
IT (1) IT978187B (fr)
NL (1) NL176231C (fr)
ZA (1) ZA74296B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704600C3 (de) * 1977-02-04 1988-05-26 Hoechst Ag, 6230 Frankfurt Permselektive, asymmetrische Hämofiltrationsmembran mit heteroporöser Struktur auf Basis von Polyamid
JPS57174107A (en) * 1981-04-20 1982-10-26 Teijin Ltd Production of permselective membrane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696031A (en) * 1969-07-08 1972-10-03 Consiglio Nazionale Ricerche Osmosis process
US3687842A (en) * 1969-07-08 1972-08-29 Consiglio Nazionale Ricerche Osmosis process
US3664986A (en) * 1969-10-14 1972-05-23 Du Pont 1,2,5-thiadiazole polymers
BE793504A (fr) * 1971-12-30 1973-06-29 Montedison Spa Membranes anisotropes de retro-osmose et leur procede de preparation

Also Published As

Publication number Publication date
AU6450974A (en) 1975-07-17
IL44156A (en) 1976-08-31
JPS49109271A (fr) 1974-10-17
CA1024711A (fr) 1978-01-24
FR2324335A1 (fr) 1977-04-15
FR2324335B1 (fr) 1978-02-10
BE809757A (fr) 1974-07-15
IL44156A0 (en) 1974-05-16
JPS574361B2 (fr) 1982-01-26
NL7400402A (fr) 1974-07-18
GB1402247A (en) 1975-08-06
ZA74296B (en) 1974-11-27
ES422290A1 (es) 1976-04-01
NL176231B (nl) 1984-10-16
IT978187B (it) 1974-09-20
DE2401428A1 (de) 1974-07-18
NL176231C (nl) 1985-03-18

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: SCHOENWALD, K., DR.-ING. FUES, J., DIPL.-CHEM. DR.

D2 Grant after examination
8364 No opposition during term of opposition