DE2419930A1 - Ultrafiltrationsmembran und verfahren zu deren herstellung - Google Patents
Ultrafiltrationsmembran und verfahren zu deren herstellungInfo
- Publication number
- DE2419930A1 DE2419930A1 DE19742419930 DE2419930A DE2419930A1 DE 2419930 A1 DE2419930 A1 DE 2419930A1 DE 19742419930 DE19742419930 DE 19742419930 DE 2419930 A DE2419930 A DE 2419930A DE 2419930 A1 DE2419930 A1 DE 2419930A1
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- cellulose acetate
- deacetylated
- membrane
- reaction
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000012528 membrane Substances 0.000 title claims description 31
- 238000000108 ultra-filtration Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229920002301 cellulose acetate Polymers 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 14
- 229920002284 Cellulose triacetate Polymers 0.000 claims description 9
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 230000000850 deacetylating effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 229920001747 Cellulose diacetate Polymers 0.000 claims description 2
- VIJMMQUAJQEELS-UHFFFAOYSA-N n,n-bis(ethenyl)ethenamine Chemical compound C=CN(C=C)C=C VIJMMQUAJQEELS-UHFFFAOYSA-N 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims 1
- 239000000080 wetting agent Substances 0.000 claims 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- 230000006196 deacetylation Effects 0.000 description 6
- 238000003381 deacetylation reaction Methods 0.000 description 6
- 125000002091 cationic group Chemical group 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- 239000003518 caustics Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920005597 polymer membrane Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- CBHXDVOSUKFRBE-UHFFFAOYSA-N 2,2-diethylbutan-1-ol Chemical compound CCC(CC)(CC)CO CBHXDVOSUKFRBE-UHFFFAOYSA-N 0.000 description 1
- 229920002466 Dynel Polymers 0.000 description 1
- 239000005862 Whey Substances 0.000 description 1
- 102000007544 Whey Proteins Human genes 0.000 description 1
- 108010046377 Whey Proteins Proteins 0.000 description 1
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- B01D71/08—Polysaccharides
- B01D71/10—Cellulose; Modified cellulose
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35572673A | 1973-04-30 | 1973-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2419930A1 true DE2419930A1 (de) | 1974-11-07 |
Family
ID=23398592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742419930 Pending DE2419930A1 (de) | 1973-04-30 | 1974-04-25 | Ultrafiltrationsmembran und verfahren zu deren herstellung |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5014577A (enrdf_load_stackoverflow) |
| DE (1) | DE2419930A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2227030B3 (enrdf_load_stackoverflow) |
| GB (1) | GB1406213A (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2505254A1 (de) * | 1975-01-23 | 1976-07-29 | Aligena Ag | Poroese membran und verfahren zu ihrer herstellung |
| EP0005193A1 (de) * | 1978-04-13 | 1979-11-14 | Sartorius GmbH. | Asymmetrische Ultrafiltrationsmembrane auf der Basis von Zellulosehydrat und Verfahren zu ihrer Herstellung |
| DE3043073A1 (de) * | 1980-11-14 | 1982-06-09 | Dr. Eduard Fresenius, Chemisch-pharmazeutische Industrie KG, 6380 Bad Homburg | Filtrationsmembran und verfahren zur hydrophilierung |
| DE3042110A1 (de) * | 1980-11-07 | 1982-06-16 | Akzo Gmbh, 5600 Wuppertal | Mikroporoese cellulosemembran |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5921728Y2 (ja) * | 1980-01-04 | 1984-06-27 | 株式会社田口製作所 | 連続式布団縫製プラント |
| RU2280944C1 (ru) * | 2005-03-03 | 2006-07-27 | Открытое акционерное общество "Электропривод" | Устройство торможения асинхронного двигателя |
-
1974
- 1974-04-25 DE DE19742419930 patent/DE2419930A1/de active Pending
- 1974-04-29 FR FR7414905A patent/FR2227030B3/fr not_active Expired
- 1974-04-30 GB GB1889574A patent/GB1406213A/en not_active Expired
- 1974-04-30 JP JP4861774A patent/JPS5014577A/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2505254A1 (de) * | 1975-01-23 | 1976-07-29 | Aligena Ag | Poroese membran und verfahren zu ihrer herstellung |
| EP0005193A1 (de) * | 1978-04-13 | 1979-11-14 | Sartorius GmbH. | Asymmetrische Ultrafiltrationsmembrane auf der Basis von Zellulosehydrat und Verfahren zu ihrer Herstellung |
| DE3042110A1 (de) * | 1980-11-07 | 1982-06-16 | Akzo Gmbh, 5600 Wuppertal | Mikroporoese cellulosemembran |
| DE3043073A1 (de) * | 1980-11-14 | 1982-06-09 | Dr. Eduard Fresenius, Chemisch-pharmazeutische Industrie KG, 6380 Bad Homburg | Filtrationsmembran und verfahren zur hydrophilierung |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5014577A (enrdf_load_stackoverflow) | 1975-02-15 |
| GB1406213A (en) | 1975-09-17 |
| FR2227030A1 (enrdf_load_stackoverflow) | 1974-11-22 |
| AU6821274A (en) | 1975-10-23 |
| FR2227030B3 (enrdf_load_stackoverflow) | 1977-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |