BE809757A - Membranes anisotropes pour osmose inverse et procede de preparation de telles membranes - Google Patents

Membranes anisotropes pour osmose inverse et procede de preparation de telles membranes

Info

Publication number: BE809757A
Authority: BE; Belgium
Prior art keywords: membranes; preparing; reverse osmosis; anisotropic; anisotropic membranes
Prior art date: 1973-01-16

Application number

BE139818A

Other languages

English (en)

French (fr)

Inventor

L Credali

G Baruzzi

V Guidotti

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.)

1973-01-16

Filing date

1974-01-15

Publication date

1974-07-15

1974-01-15 Application filed filed Critical

1974-07-15 Publication of BE809757A publication Critical patent/BE809757A/xx

Links

239000012528 membrane Substances 0.000 title 2
238000004519 manufacturing process Methods 0.000 title 1
238000001223 reverse osmosis Methods 0.000 title 1

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)

BE139818A 1973-01-16 1974-01-15 Membranes anisotropes pour osmose inverse et procede de preparation de telles membranes BE809757A (fr)

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 (1)

Publication Number	Publication Date
BE809757A true BE809757A (fr)	1974-07-15

Family

ID=11156091

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE139818A BE809757A (fr)	1973-01-16	1974-01-15	Membranes anisotropes pour osmose inverse et procede de preparation de telles membranes

Country Status (12)

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

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
US3687842A (en) *	1969-07-08	1972-08-29	Consiglio Nazionale Ricerche	Osmosis process
US3696031A (en) *	1969-07-08	1972-10-03	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

1973
- 1973-01-15 ZA ZA740296A patent/ZA74296B/xx unknown
- 1973-01-16 IT IT19247/73A patent/IT978187B/it active
1974
- 1974-01-11 NL NLAANVRAGE7400402,A patent/NL176231C/xx not_active IP Right Cessation
- 1974-01-12 DE DE2401428A patent/DE2401428C2/de not_active Expired
- 1974-01-14 GB GB176174A patent/GB1402247A/en not_active Expired
- 1974-01-14 FR FR7401108A patent/FR2324335A1/fr active Granted
- 1974-01-15 AU AU64509/74A patent/AU6450974A/en not_active Expired
- 1974-01-15 BE BE139818A patent/BE809757A/xx unknown
- 1974-01-15 ES ES422290A patent/ES422290A1/es not_active Expired
- 1974-01-16 CA CA190,326A patent/CA1024711A/en not_active Expired
- 1974-01-16 JP JP717974A patent/JPS574361B2/ja not_active Expired
- 1974-02-06 IL IL44156A patent/IL44156A/en unknown

Also Published As

Publication number	Publication date
IL44156A0 (en)	1974-05-16
FR2324335B1 (it)	1978-02-10
JPS49109271A (it)	1974-10-17
CA1024711A (en)	1978-01-24
DE2401428A1 (de)	1974-07-18
DE2401428C2 (de)	1985-11-14
IT978187B (it)	1974-09-20
NL176231B (nl)	1984-10-16
ES422290A1 (es)	1976-04-01
NL176231C (nl)	1985-03-18
IL44156A (en)	1976-08-31
GB1402247A (en)	1975-08-06
ZA74296B (en)	1974-11-27
AU6450974A (en)	1975-07-17
JPS574361B2 (it)	1982-01-26
NL7400402A (it)	1974-07-18
FR2324335A1 (fr)	1977-04-15

Similar Documents

Publication	Publication Date	Title
FR2283921A1 (fr)	1976-04-02	Procede de preparation de membranes pour la separation de substances
BE805095A (fr)	1974-03-20	Membranes pour ultrafiltration
IL43783A0 (en)	1974-03-14	Dynamic membranes for reverse osmosis
BE755779A (fr)	1971-02-15	Appareil pour l'osmose inverse et procede pour le fabriquer
IL38833A (en)	1975-05-22	Separation apparatus employing semi-permeable membranes especially useful for ultrafiltration
CA955178A (en)	1974-09-24	Membrane assemblies for reverse osmosis apparatus
CA998003A (en)	1976-10-05	Castings for reverse osmosis membrane supports
IL36692A (en)	1975-03-13	Apparatus for treatment of a liquid utilizing a semi-permeable membrane,particularly for reverse osmosis
BE746629A (fr)	1970-07-31	Procede pour la formation de membranes semi-permeables pour dessalementd'eaux saumatres et marines, par hyperfiltration, et membranes produites par le susdit procede
BE765463A (fr)	1971-08-30	Membrane pour osmose inverse et son procede de fabrication
CA1005353A (en)	1977-02-15	Reverse osmosis membranes from pyrrone polymer precursors
CA1018315A (en)	1977-10-04	Method for preparing reverse osmosis polymeric membranes
ES188841Y (es)	1974-09-16	Dispositivo de filtracion para la preparacion de bebidas decafe filtradas.
IL41164A (en)	1975-08-31	Reverse osmosis membranes
FR2324335A1 (fr)	1977-04-15	Membranes anisotropes pour osmose inverse et procede de preparation de telles membranes
IL43856A0 (en)	1974-03-14	Reverse osmosis apparatus
CA987466A (en)	1976-04-20	Method and apparatus for making tubular polymeric membranes for reverse osmosis
IL41983A0 (en)	1973-06-29	Improvements in or relating to membranes for reverse osmosis
CA1029496A (en)	1978-04-11	Polymeric piperazinamides and membranes for reverse osmosis made therefrom
CA891644A (en)	1972-01-25	Support system for membranes used in the reverse osmosis process
GB1434540A (en)	1976-05-05	Reverse osmosis apparatus
CA930126A (en)	1973-07-17	Preparing reverse osmosis membranes
FR2326978A1 (fr)	1977-05-06	Procede pour le dessalement de sable
CA800829A (en)	1968-12-10	Desalting water by reverse osmosis through novel semipermeable membranes
AU458875B2 (en)	1972-07-20	Improvements in or relating to membrane assemblies for reverse osmosis apparatus