NL175884C - Anisotrope membranen voor omgekeerde osmose. - Google Patents

Anisotrope membranen voor omgekeerde osmose.

Info

Publication number
NL175884C
NL175884C NLAANVRAGE7217668,A NL7217668A NL175884C NL 175884 C NL175884 C NL 175884C NL 7217668 A NL7217668 A NL 7217668A NL 175884 C NL175884 C NL 175884C
Authority
NL
Netherlands
Prior art keywords
anisotrope
membranes
reverse osmosis
osmosis
reverse
Prior art date
Application number
NLAANVRAGE7217668,A
Other languages
English (en)
Other versions
NL7217668A (nl
NL175884B (nl
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 NL7217668A publication Critical patent/NL7217668A/xx
Publication of NL175884B publication Critical patent/NL175884B/nl
Application granted granted Critical
Publication of NL175884C publication Critical patent/NL175884C/nl

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)
NLAANVRAGE7217668,A 1971-12-30 1972-12-27 Anisotrope membranen voor omgekeerde osmose. NL175884C (nl)

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 (3)

Publication Number Publication Date
NL7217668A NL7217668A (nl) 1973-07-03
NL175884B NL175884B (nl) 1984-08-16
NL175884C true NL175884C (nl) 1985-01-16

Family

ID=11236670

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7217668,A NL175884C (nl) 1971-12-30 1972-12-27 Anisotrope membranen voor omgekeerde osmose.

Country Status (13)

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

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
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
US4921611A (en) * 1987-10-14 1990-05-01 Schucker Robert C 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
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
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
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

Also Published As

Publication number Publication date
JPS5611484B2 (nl) 1981-03-14
NL7217668A (nl) 1973-07-03
BE793504A (fr) 1973-06-29
IT944578B (it) 1973-04-20
FR2166115A1 (nl) 1973-08-10
ES410178A1 (es) 1975-12-01
NL175884B (nl) 1984-08-16
IL41210A0 (en) 1973-02-28
JPS4880481A (nl) 1973-10-27
ZA729171B (en) 1973-09-26
DE2263774A1 (de) 1973-07-12
IL41210A (en) 1976-08-31
GB1391559A (en) 1975-04-23
DE2263774C2 (de) 1982-04-01
BR7209266D0 (pt) 1973-09-25
EG10806A (en) 1976-09-30
FR2166115B1 (nl) 1976-04-23
CA1018315A (en) 1977-10-04

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V4 Discontinued because of reaching the maximum lifetime of a patent