NL6613314A - - Google Patents
Info
- Publication number
- NL6613314A NL6613314A NL6613314A NL6613314A NL6613314A NL 6613314 A NL6613314 A NL 6613314A NL 6613314 A NL6613314 A NL 6613314A NL 6613314 A NL6613314 A NL 6613314A NL 6613314 A NL6613314 A NL 6613314A
- Authority
- NL
- Netherlands
- Prior art keywords
- cellulose
- cellulosic sheet
- sheet
- permselectivity
- etherification
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 abstract 3
- 239000012528 membrane Substances 0.000 abstract 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 2
- 239000001913 cellulose Substances 0.000 abstract 2
- 238000006266 etherification reaction Methods 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- TXJUTRJFNRYTHH-UHFFFAOYSA-N 1h-3,1-benzoxazine-2,4-dione Chemical compound C1=CC=C2C(=O)OC(=O)NC2=C1 TXJUTRJFNRYTHH-UHFFFAOYSA-N 0.000 abstract 1
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 abstract 1
- -1 anthranoyl ester Chemical class 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 1
- 150000002391 heterocyclic compounds Chemical class 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- MHYFEEDKONKGEB-UHFFFAOYSA-N oxathiane 2,2-dioxide Chemical compound O=S1(=O)CCCCO1 MHYFEEDKONKGEB-UHFFFAOYSA-N 0.000 abstract 1
- 239000001294 propane Substances 0.000 abstract 1
- 239000004627 regenerated cellulose Substances 0.000 abstract 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0093—Chemical modification
- B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
- C08J5/2212—Natural macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/20—Specific permeability or cut-off range
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
1,161,513. Permselective membranes. ISRAEL, STATE OF. and A. SUSZER. 23 Sept., 1966 [24 Sept., 1965], No. 42490/66. Heading B5B. [Also in Divisions C3 and D2] Permselective membranes are made by bonding organic fibre-active molecules containing acidic or basic groups to a cellulosic sheet. The bonding comprises ether or ester links. The membranes exhibit permselectivity in a broad pH range. The permselectivity exceeds 14 mV in a cell containing N/10 to N/20 KCI, and the resistance < 20 ohm/cm<SP>2</SP>. Links are formed by (a) partially esterifying the sheet with isatoic anhydride or a derivative thereof, diazotizing the resultant anthranoyl ester of cellulose, and coupling an agent containing acidic or basic groups; (b) by the interaction of the cellulosic sheet with a halogenated N- containing heterocyclic compound which may contain at least one sulphonic acid group, or at least one basic group, which may be alkylated; (c) etherification of the cellulose with the dibasic salt of tris-#-sulphatoethylsulphonium inner salt; or (d) etherification with propane or butane sultone. The cellulosic sheet may be of regenerated cellulose or partially hydrolysed cellulose esters, e.g. cellulose acetate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL24367A IL24367A (en) | 1965-09-24 | 1965-09-24 | Permselectve membranes and process of making same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6613314A true NL6613314A (en) | 1967-03-28 |
Family
ID=11043724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6613314A NL6613314A (en) | 1965-09-24 | 1966-09-21 |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE1593556A1 (en) |
| FR (1) | FR1514129A (en) |
| GB (1) | GB1161513A (en) |
| IL (1) | IL24367A (en) |
| NL (1) | NL6613314A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117717916A (en) * | 2024-01-04 | 2024-03-19 | 阿克菲姆膜材(嘉兴)有限公司 | Preparation method and application of hollow fiber nanofiltration membrane with hydrophobic microporous membrane as support membrane |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3066996D1 (en) * | 1979-09-19 | 1984-04-19 | Aligena Ag | Porous semipermeable cellulose acetate membranes modified by ionic groups, process for their production and their use |
-
1965
- 1965-09-24 IL IL24367A patent/IL24367A/en unknown
-
1966
- 1966-09-21 DE DE19661593556 patent/DE1593556A1/en active Pending
- 1966-09-21 NL NL6613314A patent/NL6613314A/ unknown
- 1966-09-23 FR FR77395A patent/FR1514129A/en not_active Expired
- 1966-09-23 GB GB42490/66A patent/GB1161513A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117717916A (en) * | 2024-01-04 | 2024-03-19 | 阿克菲姆膜材(嘉兴)有限公司 | Preparation method and application of hollow fiber nanofiltration membrane with hydrophobic microporous membrane as support membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1593556A1 (en) | 1970-12-03 |
| IL24367A (en) | 1969-07-30 |
| FR1514129A (en) | 1968-02-23 |
| GB1161513A (en) | 1969-08-13 |
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