IT944578B - Membrane polimeriche per osmosi inversa ad alto flusso d acqua ed elevata reiezione salina e metodo di preparazione di tali membrane - Google Patents

Membrane polimeriche per osmosi inversa ad alto flusso d acqua ed elevata reiezione salina e metodo di preparazione di tali membrane

Info

Publication number
IT944578B
IT944578B IT33137/71A IT3313771A IT944578B IT 944578 B IT944578 B IT 944578B IT 33137/71 A IT33137/71 A IT 33137/71A IT 3313771 A IT3313771 A IT 3313771A IT 944578 B IT944578 B IT 944578B
Authority
IT
Italy
Prior art keywords
membranes
preparation
water
reverse osmosis
high flow
Prior art date
Application number
IT33137/71A
Other languages
English (en)
Inventor
D Credali
G Baruzzi
H Russo
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
Priority to BE793504D priority Critical patent/BE793504A/xx
Application filed by Montedison Spa filed Critical Montedison Spa
Priority to IT33137/71A priority patent/IT944578B/it
Priority to NLAANVRAGE7217668,A priority patent/NL175884C/xx
Priority to EG545/72A priority patent/EG10806A/xx
Priority to ZA729171A priority patent/ZA729171B/xx
Priority to DE2263774A priority patent/DE2263774C2/de
Priority to FR7246566A priority patent/FR2166115B1/fr
Priority to BR9266/72A priority patent/BR7209266D0/pt
Priority to IL41210A priority patent/IL41210A/en
Priority to ES410178A priority patent/ES410178A1/es
Priority to JP438573A priority patent/JPS5611484B2/ja
Priority to GB5966272A priority patent/GB1391559A/en
Priority to CA160,396A priority patent/CA1018315A/en
Application granted granted Critical
Publication of IT944578B publication Critical patent/IT944578B/it

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)
IT33137/71A 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 IT944578B (it)

Priority Applications (13)

Application Number Priority Date Filing Date Title
BE793504D BE793504A (fr) 1971-12-30 Membranes anisotropes de retro-osmose et leur procede de preparation
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
EG545/72A EG10806A (en) 1971-12-30 1972-12-27 Reverse osmosis polymeric membranes with a great flow of water and strong saline rejection and method for preparing such membranes
NLAANVRAGE7217668,A NL175884C (nl) 1971-12-30 1972-12-27 Anisotrope membranen voor omgekeerde osmose.
DE2263774A DE2263774C2 (de) 1971-12-30 1972-12-28 Für die umgekehrte Osmose bestimmte anisotrope polymere Membranen aus Polypiperazinamidpolymeren
FR7246566A FR2166115B1 (it) 1971-12-30 1972-12-28
ZA729171A ZA729171B (en) 1971-12-30 1972-12-28 Reverse osmosis skinned anisotropic polymeric membranes with a great flow of water and strong saline rejection and method for preparing such membranes
BR9266/72A BR7209266D0 (pt) 1971-12-30 1972-12-29 Membranas polimericas de osmose de pele anisotropica reversa de grande escoamento de agua e forte rejeicao salina e processo de preparar tais membranas
IL41210A IL41210A (en) 1971-12-30 1972-12-29 Polymeric membranes for reverse osmosis and their preparation
ES410178A ES410178A1 (es) 1971-12-30 1972-12-29 Procedimiento para la preparacion de membranas polimericas anisotropicas de osmosis inversa.
JP438573A JPS5611484B2 (it) 1971-12-30 1972-12-29
GB5966272A GB1391559A (en) 1971-12-30 1973-01-01 Reverse osmosis membranes
CA160,396A CA1018315A (en) 1971-12-30 1973-01-02 Method for preparing reverse osmosis polymeric membranes

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 (1)

Publication Number Publication Date
IT944578B true IT944578B (it) 1973-04-20

Family

ID=11236670

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (13)

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

Families Citing this family (10)

* 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
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
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
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
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
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
NL171019C (nl) * 1969-07-08 1983-02-01 Consiglio Nazionale Ricerche Membranen voor omgekeerde osmose.
US3687842A (en) * 1969-07-08 1972-08-29 Consiglio Nazionale Ricerche Osmosis process

Also Published As

Publication number Publication date
IL41210A (en) 1976-08-31
JPS4880481A (it) 1973-10-27
GB1391559A (en) 1975-04-23
BE793504A (fr) 1973-06-29
NL175884C (nl) 1985-01-16
IL41210A0 (en) 1973-02-28
CA1018315A (en) 1977-10-04
FR2166115B1 (it) 1976-04-23
EG10806A (en) 1976-09-30
NL7217668A (it) 1973-07-03
JPS5611484B2 (it) 1981-03-14
BR7209266D0 (pt) 1973-09-25
DE2263774C2 (de) 1982-04-01
ZA729171B (en) 1973-09-26
FR2166115A1 (it) 1973-08-10
ES410178A1 (es) 1975-12-01
DE2263774A1 (de) 1973-07-12
NL175884B (nl) 1984-08-16

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