CA2004996A1 - Collagen foil used as pervaporation membrane - Google Patents
Collagen foil used as pervaporation membraneInfo
- Publication number
- CA2004996A1 CA2004996A1 CA002004996A CA2004996A CA2004996A1 CA 2004996 A1 CA2004996 A1 CA 2004996A1 CA 002004996 A CA002004996 A CA 002004996A CA 2004996 A CA2004996 A CA 2004996A CA 2004996 A1 CA2004996 A1 CA 2004996A1
- Authority
- CA
- Canada
- Prior art keywords
- membrane
- collagen
- use according
- water
- separation
- 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.)
- Abandoned
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 62
- 102000008186 Collagen Human genes 0.000 title claims abstract description 35
- 108010035532 Collagen Proteins 0.000 title claims abstract description 35
- 239000011888 foil Substances 0.000 title claims abstract description 34
- 229920001436 collagen Polymers 0.000 title claims abstract description 33
- 238000005373 pervaporation Methods 0.000 title claims abstract description 20
- 238000000926 separation method Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000006482 condensation reaction Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 235000008504 concentrate Nutrition 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 6
- 210000004379 membrane Anatomy 0.000 description 56
- 229960005188 collagen Drugs 0.000 description 31
- 239000012466 permeate Substances 0.000 description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 14
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- -1 e.g. Substances 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000004793 Polystyrene Substances 0.000 description 6
- 229920001661 Chitosan Polymers 0.000 description 5
- 229940045110 chitosan Drugs 0.000 description 5
- 229920002284 Cellulose triacetate Polymers 0.000 description 4
- 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 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000796 flavoring agent Substances 0.000 description 4
- 235000019634 flavors Nutrition 0.000 description 4
- 241001505295 Eros Species 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 235000010980 cellulose Nutrition 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229920000578 graft copolymer Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012465 retentate Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229920002307 Dextran Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 235000015197 apple juice Nutrition 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000004113 cell culture Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004627 regenerated cellulose Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- MSWZFWKMSRAUBD-IVMDWMLBSA-N 2-amino-2-deoxy-D-glucopyranose Chemical compound N[C@H]1C(O)O[C@H](CO)[C@@H](O)[C@@H]1O MSWZFWKMSRAUBD-IVMDWMLBSA-N 0.000 description 1
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 108010068370 Glutens Proteins 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 108010073771 Soybean Proteins Proteins 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229920002494 Zein Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- MSWZFWKMSRAUBD-UHFFFAOYSA-N beta-D-galactosamine Natural products NC1C(O)OC(CO)C(O)C1O MSWZFWKMSRAUBD-UHFFFAOYSA-N 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- FLASNYPZGWUPSU-SICDJOISSA-N chitosan Chemical class O([C@@H]1[C@@H](CO)O[C@H]([C@@H]([C@H]1O)N)O[C@@H]1[C@@H](CO)O[C@H]([C@@H]([C@H]1O)N)O[C@@H]1[C@@H](CO)O[C@H]([C@@H]([C@H]1O)N)O[C@@H]1[C@@H](CO)O[C@H]([C@@H]([C@H]1O)N)O[C@@H]1[C@@H](CO)O[C@H]([C@@H]([C@H]1O)N)O[C@H]1[C@H](O)[C@H]([C@@H](O[C@@H]1CO)O[C@@H]1[C@H](O[C@@H](O[C@@H]2[C@H](O[C@@H](O)[C@H](N)[C@H]2O)CO)[C@H](N)[C@H]1O)CO)NC(=O)OC)[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1N FLASNYPZGWUPSU-SICDJOISSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-M dihydrogenphosphate Chemical compound OP(O)([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-M 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 125000005677 ethinylene group Polymers [*:2]C#C[*:1] 0.000 description 1
- 125000002534 ethynyl group Polymers [H]C#C* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 229960002442 glucosamine Drugs 0.000 description 1
- 235000021312 gluten Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 230000000051 modifying effect Effects 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229940001941 soy protein Drugs 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 150000003567 thiocyanates Chemical class 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000005019 zein Substances 0.000 description 1
- 229940093612 zein Drugs 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/362—Pervaporation
-
- 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
- B01D71/74—Natural macromolecular material or derivatives thereof
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3841716.2 | 1988-12-10 | ||
| DE3841716A DE3841716A1 (de) | 1988-12-10 | 1988-12-10 | Kollagenfolie als pervaporationsmembran |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2004996A1 true CA2004996A1 (en) | 1990-06-10 |
Family
ID=6368930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002004996A Abandoned CA2004996A1 (en) | 1988-12-10 | 1989-12-08 | Collagen foil used as pervaporation membrane |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0447467B1 (OSRAM) |
| AU (1) | AU632527B2 (OSRAM) |
| CA (1) | CA2004996A1 (OSRAM) |
| DE (2) | DE3841716A1 (OSRAM) |
| ES (1) | ES2058884T3 (OSRAM) |
| WO (1) | WO1990006166A1 (OSRAM) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA885901A (en) * | 1971-11-16 | L. Shank Joseph | Collagen film manufacture | |
| US1779942A (en) * | 1918-06-17 | 1930-10-28 | Kober Philip Adolph | Process of making dialyzing and pervaporating membranes and product produced thereby |
| US2386826A (en) * | 1942-01-10 | 1945-10-16 | Sylvania Ind Corp | Process and apparatus for treating fluid compositions |
| US2953502A (en) * | 1955-05-24 | 1960-09-20 | American Oil Co | Separation of azeotropic mixtures |
| US2956070A (en) * | 1958-04-29 | 1960-10-11 | American Oil Co | Organic chemical reactions involving liberation of water |
| DE2004987C3 (de) * | 1970-02-04 | 1974-11-14 | Fa. Carl Freudenberg, 6940 Weinheim | Dialysemembran |
| US3644202A (en) * | 1970-03-31 | 1972-02-22 | Willard S Higley | Collagen membranes for reverse osmosis desalination |
| US4097234A (en) * | 1976-12-10 | 1978-06-27 | Nippi, Incorporated | Method for preparing dispersion of collagen fiber |
| DE3410155C1 (de) * | 1984-03-20 | 1985-08-01 | Gkss - Forschungszentrum Geesthacht Gmbh, 2054 Geesthacht | Verfahren zur Trennung der Komponenten eines Flüssigkeitsgemisches |
| DE3418414A1 (de) * | 1984-05-17 | 1985-11-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Kontinuierliche produktentfernung aus bioreaktoren |
| DE3536007A1 (de) * | 1985-10-09 | 1987-05-07 | Akzo Gmbh | Pervaporationsverfahren |
-
1988
- 1988-12-10 DE DE3841716A patent/DE3841716A1/de active Granted
-
1989
- 1989-12-06 AU AU48317/90A patent/AU632527B2/en not_active Ceased
- 1989-12-06 ES ES90900799T patent/ES2058884T3/es not_active Expired - Lifetime
- 1989-12-06 EP EP90900799A patent/EP0447467B1/de not_active Expired - Lifetime
- 1989-12-06 DE DE9090900799T patent/DE58905190D1/de not_active Expired - Fee Related
- 1989-12-06 WO PCT/EP1989/001494 patent/WO1990006166A1/de not_active Ceased
- 1989-12-08 CA CA002004996A patent/CA2004996A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE3841716C2 (OSRAM) | 1992-07-16 |
| ES2058884T3 (es) | 1994-11-01 |
| EP0447467B1 (de) | 1993-08-04 |
| WO1990006166A1 (de) | 1990-06-14 |
| AU4831790A (en) | 1990-06-26 |
| DE58905190D1 (de) | 1993-09-09 |
| DE3841716A1 (de) | 1990-06-13 |
| EP0447467A1 (de) | 1991-09-25 |
| AU632527B2 (en) | 1993-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4243701A (en) | Preparation of gas separation membranes | |
| US4075093A (en) | Process of separating citric acid and/or isocitric acid or their salts from aqueous solutions | |
| US4272378A (en) | Semipermeable membrane | |
| US5130025A (en) | Membrane separation and purification of compounds | |
| US4163725A (en) | Process for preparing of semipermeable membranes | |
| US3549016A (en) | Permeable membrane and method of making and using the same | |
| US4983304A (en) | Membrane for separation of water-alcohol mixed liquid and process for preparation thereof | |
| HU213925B (en) | Composite a symmetric membrane and process for selectively removing viral particles from solutions and process for forming a composite membrane | |
| US5151182A (en) | Polyphenylene oxide-derived membranes for separation in organic solvents | |
| US5059327A (en) | Cross-linked separation membrane and process for pervaporation | |
| Uragami et al. | Concentration of aqueous dimethyl sulfoxide solutions through a chitosan membrane by permeation with a temperature difference | |
| US2049828A (en) | Treatment of latex | |
| EP0062494A2 (en) | Method and device for separating mixed liquid components | |
| WO1989005182A1 (fr) | Membrane hydrolysee et procede de production | |
| CN110449045A (zh) | 一种基于新的缓冲体系的高通量纳滤膜的制备方法 | |
| CA2004996A1 (en) | Collagen foil used as pervaporation membrane | |
| US3857782A (en) | Semipermeable membrane process and device employing an aminoethylated polymeric material as the semipermeable membrane | |
| US4895685A (en) | Crosslinked composite membrane and process for producing the same | |
| US4919808A (en) | Semipermeable membrane compositions | |
| JPS61281138A (ja) | エタノ−ル／水混合液から水を選択的に透過する複合膜およびその製造方法 | |
| US5164088A (en) | Multilayer membrane and process of manufacturing same | |
| EP0323224B1 (en) | Polyvinyl formal ultrafiltration membrane and process for producing the same | |
| RU2093255C1 (ru) | Способ получения ультрафильтрационных ацетатцеллюлозных мембран | |
| US5221482A (en) | Polyparabanic acid membrane for selective separation | |
| US4824573A (en) | Crosslinked composite membrane and process for producing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |