DE2263774C2 - Für die umgekehrte Osmose bestimmte anisotrope polymere Membranen aus Polypiperazinamidpolymeren - Google Patents

Für die umgekehrte Osmose bestimmte anisotrope polymere Membranen aus Polypiperazinamidpolymeren

Info

Publication number
DE2263774C2
DE2263774C2 DE2263774A DE2263774A DE2263774C2 DE 2263774 C2 DE2263774 C2 DE 2263774C2 DE 2263774 A DE2263774 A DE 2263774A DE 2263774 A DE2263774 A DE 2263774A DE 2263774 C2 DE2263774 C2 DE 2263774C2
Authority
DE
Germany
Prior art keywords
membrane
water
solution
membranes
reverse osmosis
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
DE2263774A
Other languages
German (de)
English (en)
Other versions
DE2263774A1 (de
Inventor
Giovanni Baruzzi
Lino Casalecchio Bologna Credali
Mario Milano Russo
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
Montecatini Edison 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 Montecatini Edison SpA filed Critical Montecatini Edison SpA
Publication of DE2263774A1 publication Critical patent/DE2263774A1/de
Application granted granted Critical
Publication of DE2263774C2 publication Critical patent/DE2263774C2/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • 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)
  • Compositions Of Macromolecular Compounds (AREA)
DE2263774A 1971-12-30 1972-12-28 Für die umgekehrte Osmose bestimmte anisotrope polymere Membranen aus Polypiperazinamidpolymeren Expired DE2263774C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT33137/71A IT944578B (it) 1971-12-30 1971-12-30 Membrane polimeriche per osmosi inversa ad alto flusso d acqua ed elevata reiezione salina e metodo di preparazione di tali membrane

Publications (2)

Publication Number Publication Date
DE2263774A1 DE2263774A1 (de) 1973-07-12
DE2263774C2 true DE2263774C2 (de) 1982-04-01

Family

ID=11236670

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2263774A Expired DE2263774C2 (de) 1971-12-30 1972-12-28 Für die umgekehrte Osmose bestimmte anisotrope polymere Membranen aus Polypiperazinamidpolymeren

Country Status (13)

Country Link
JP (1) JPS5611484B2 (fr)
BE (1) BE793504A (fr)
BR (1) BR7209266D0 (fr)
CA (1) CA1018315A (fr)
DE (1) DE2263774C2 (fr)
EG (1) EG10806A (fr)
ES (1) ES410178A1 (fr)
FR (1) FR2166115B1 (fr)
GB (1) GB1391559A (fr)
IL (1) IL41210A (fr)
IT (1) IT944578B (fr)
NL (1) NL175884C (fr)
ZA (1) ZA729171B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220376A1 (de) * 1982-05-29 1983-12-01 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach Membranfilter fuer mikrofiltration und verfahren zu seiner herstellung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA74296B (en) * 1973-01-16 1974-11-27 Montedison Spa Reverse osmosis anisotropic membranes with great water flow and strong saline rejection,based on polypiperazine amides,and process for preparing such membranes
IT1153101B (it) * 1982-07-01 1987-01-14 Montedison Spa Procedimento per la preparazione di corpi formati anisotropi a base di poli-piperazinammidi
IT1222627B (it) * 1987-09-09 1990-09-05 Separem Spa Procedimento per la preparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento
US4879044A (en) * 1987-10-14 1989-11-07 Exxon Research And Engineering Company Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non aromatics
US4837054A (en) * 1987-10-14 1989-06-06 Exxon Research And Engineering Company Thin film composite membrane prepared by deposition from a solution
US4861628A (en) * 1987-10-14 1989-08-29 Exxon Research And Engineering Company Thin film composite membrane prepared by suspension deposition
US4921611A (en) * 1987-10-14 1990-05-01 Schucker Robert C Thin film composite membrane prepared by deposition from a solution
US4828773A (en) * 1987-10-14 1989-05-09 Exxon Research And Engineering Company Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non-aromatics
US5045354A (en) * 1989-12-19 1991-09-03 Exxon Research & Engineering Company Production of supported thin film membranes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687842A (en) * 1969-07-08 1972-08-29 Consiglio Nazionale Ricerche Osmosis process
NL171019C (nl) * 1969-07-08 1983-02-01 Consiglio Nazionale Ricerche Membranen voor omgekeerde osmose.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220376A1 (de) * 1982-05-29 1983-12-01 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach Membranfilter fuer mikrofiltration und verfahren zu seiner herstellung

Also Published As

Publication number Publication date
IL41210A (en) 1976-08-31
NL7217668A (fr) 1973-07-03
CA1018315A (en) 1977-10-04
ES410178A1 (es) 1975-12-01
JPS4880481A (fr) 1973-10-27
JPS5611484B2 (fr) 1981-03-14
BE793504A (fr) 1973-06-29
ZA729171B (en) 1973-09-26
IT944578B (it) 1973-04-20
DE2263774A1 (de) 1973-07-12
GB1391559A (en) 1975-04-23
FR2166115B1 (fr) 1976-04-23
EG10806A (en) 1976-09-30
IL41210A0 (en) 1973-02-28
NL175884C (nl) 1985-01-16
NL175884B (nl) 1984-08-16
FR2166115A1 (fr) 1973-08-10
BR7209266D0 (pt) 1973-09-25

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Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination