IL44156A - Reverse osmosis anisotropic membranes and their preparation - Google Patents
Reverse osmosis anisotropic membranes and their preparationInfo
- Publication number
- IL44156A IL44156A IL44156A IL4415674A IL44156A IL 44156 A IL44156 A IL 44156A IL 44156 A IL44156 A IL 44156A IL 4415674 A IL4415674 A IL 4415674A IL 44156 A IL44156 A IL 44156A
- Authority
- IL
- Israel
- Prior art keywords
- groups
- polypiperazine
- process according
- formula
- membrane
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title claims abstract 15
- 238000002360 preparation method Methods 0.000 title claims 2
- 238000001223 reverse osmosis Methods 0.000 title claims 2
- 150000001408 amides Chemical class 0.000 claims abstract 7
- 229920000642 polymer Polymers 0.000 claims abstract 3
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims 9
- 239000003960 organic solvent Substances 0.000 claims 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 3
- 125000004193 piperazinyl group Chemical group 0.000 claims 3
- 239000002904 solvent Substances 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 230000015271 coagulation Effects 0.000 claims 2
- 238000005345 coagulation Methods 0.000 claims 2
- 238000001704 evaporation Methods 0.000 claims 2
- 230000008020 evaporation Effects 0.000 claims 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- 238000003892 spreading Methods 0.000 claims 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims 1
- -1 Li O. Chemical compound 0.000 claims 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims 1
- SUAKHGWARZSWIH-UHFFFAOYSA-N N,N‐diethylformamide Chemical compound CCN(CC)C=O SUAKHGWARZSWIH-UHFFFAOYSA-N 0.000 claims 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 238000009835 boiling Methods 0.000 claims 1
- 229960001760 dimethyl sulfoxide Drugs 0.000 claims 1
- 238000004090 dissolution Methods 0.000 claims 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 1
- 239000005357 flat glass Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000007654 immersion Methods 0.000 claims 1
- 229910017053 inorganic salt Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- AJFDBNQQDYLMJN-UHFFFAOYSA-N n,n-diethylacetamide Chemical compound CCN(CC)C(C)=O AJFDBNQQDYLMJN-UHFFFAOYSA-N 0.000 claims 1
- BLQOGBWNXVIEBD-UHFFFAOYSA-N 1,2,5-thiadiazole-3,4-dicarbonyl chloride Chemical compound ClC(=O)C1=NSN=C1C(Cl)=O BLQOGBWNXVIEBD-UHFFFAOYSA-N 0.000 abstract 2
- NSMWYRLQHIXVAP-OLQVQODUSA-N (2r,5s)-2,5-dimethylpiperazine Chemical compound C[C@H]1CN[C@H](C)CN1 NSMWYRLQHIXVAP-OLQVQODUSA-N 0.000 abstract 1
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 abstract 1
- 125000001424 substituent group Chemical group 0.000 abstract 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)
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 |
|---|---|
| IL44156A0 IL44156A0 (en) | 1974-05-16 |
| IL44156A true IL44156A (en) | 1976-08-31 |
Family
ID=11156091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL44156A IL44156A (en) | 1973-01-16 | 1974-02-06 | Reverse osmosis anisotropic membranes and their preparation |
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)
| 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)
| 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/fr unknown
- 1974-01-15 ES ES422290A patent/ES422290A1/es not_active Expired
- 1974-01-16 CA CA190,326A patent/CA1024711A/fr 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 (fr) | 1978-02-10 |
| JPS49109271A (fr) | 1974-10-17 |
| CA1024711A (fr) | 1978-01-24 |
| DE2401428A1 (de) | 1974-07-18 |
| DE2401428C2 (de) | 1985-11-14 |
| IT978187B (it) | 1974-09-20 |
| NL176231B (nl) | 1984-10-16 |
| BE809757A (fr) | 1974-07-15 |
| ES422290A1 (es) | 1976-04-01 |
| NL176231C (nl) | 1985-03-18 |
| GB1402247A (en) | 1975-08-06 |
| ZA74296B (en) | 1974-11-27 |
| AU6450974A (en) | 1975-07-17 |
| JPS574361B2 (fr) | 1982-01-26 |
| NL7400402A (fr) | 1974-07-18 |
| FR2324335A1 (fr) | 1977-04-15 |
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