GB2001899A - Cellulose ester hollow fibre membranes - Google Patents
Cellulose ester hollow fibre membranesInfo
- Publication number
- GB2001899A GB2001899A GB7827035A GB7827035A GB2001899A GB 2001899 A GB2001899 A GB 2001899A GB 7827035 A GB7827035 A GB 7827035A GB 7827035 A GB7827035 A GB 7827035A GB 2001899 A GB2001899 A GB 2001899A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellulose ester
- weight
- solution
- spinning
- amount
- 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.)
- Granted
Links
- 229920002678 cellulose Polymers 0.000 title abstract 5
- 239000012528 membrane Substances 0.000 title abstract 2
- 239000000835 fiber Substances 0.000 title 1
- 238000009987 spinning Methods 0.000 abstract 7
- 239000000243 solution Substances 0.000 abstract 5
- 230000001112 coagulating effect Effects 0.000 abstract 4
- 239000002904 solvent Substances 0.000 abstract 3
- 102000009027 Albumins Human genes 0.000 abstract 2
- 108010088751 Albumins Proteins 0.000 abstract 2
- 230000015271 coagulation Effects 0.000 abstract 2
- 238000005345 coagulation Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 238000000108 ultra-filtration Methods 0.000 abstract 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000012460 protein solution Substances 0.000 abstract 1
- 102000004169 proteins and genes Human genes 0.000 abstract 1
- 108090000623 proteins and genes Proteins 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 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
- B01D71/12—Cellulose derivatives
- B01D71/14—Esters of organic acids
- B01D71/16—Cellulose acetate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- 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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
A method of producing membranes for ultrafiltration having a large ultrafiltration rate for a protein solution, such as 30 to 150 m//m<2>.hr.mmHg for an albumin solution, and a large protein rejection rate, such as 90 to 100% for albumin, comprises extruding, from a ring-form spinning nozzle, a spinning solution containing (1) a cellulose ester in an amount of more than 35% to 55% by weight based on the weight of the solvent for the cellulose ester, (2) at least one chloride, nitrate, bromide or iodide of a monovalent or divalent metal in an amount of 20 to 200% by weight based on the weight of the cellulose ester, and optionally (3) as auxiliary solvent, a saturated cyclic monohydric alcohols having 5 to 10 carbon atoms in an amount of 0 to 80% by weight based on the weight of the solvent for the cellulose ester, while simultaneously extruding an internal coagulating liquid capable of coagulating the spinning solution, from the center of the ring-form spinning nozzle, and after allowing the spinning solution and the internal coagulating liquid to fall from the spinning nozzle into a spaced coagulation bath, coagulating the spinning solution in the coagulation bath and extracting the metal salt.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7212377A JPS546916A (en) | 1977-06-20 | 1977-06-20 | Hollow cellulose fibers and their production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2001899A true GB2001899A (en) | 1979-02-14 |
| GB2001899B GB2001899B (en) | 1982-01-27 |
Family
ID=13480237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7827035A Expired GB2001899B (en) | 1977-06-20 | 1978-06-15 | Hollow fibre membranes for ultrafiltration and method for producing same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS546916A (en) |
| DE (1) | DE2827012C3 (en) |
| FR (1) | FR2395060A1 (en) |
| GB (1) | GB2001899B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2534475A1 (en) * | 1982-10-14 | 1984-04-20 | Fujisawa Pharmaceutical Co | PROCESS FOR THE CONCENTRATION OF AN AQUEOUS ANTIBIOTIC B-LACTAM SOLUTION |
| US4722795A (en) * | 1982-07-02 | 1988-02-02 | Gambro Dialysatoren Kg | Polyamide hollow fiber filtration membrane having barrier layer |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5562214A (en) * | 1978-11-02 | 1980-05-10 | Toyobo Co Ltd | Production of hollow fiber membrane |
| DE3006880C2 (en) * | 1980-02-23 | 1986-10-09 | Akzo Gmbh, 5600 Wuppertal | Plasmaphoresis membrane |
| JPS5742918A (en) * | 1980-08-29 | 1982-03-10 | Mitsubishi Rayon Co Ltd | Hollow cellulosic derivative fiber |
| EP0066408B1 (en) * | 1981-05-19 | 1987-07-29 | Teijin Limited | Porous membrane |
| JPS5829880A (en) * | 1981-08-13 | 1983-02-22 | Matsushita Electric Ind Co Ltd | Electric field luminescent element |
| JPH0653164B2 (en) * | 1986-06-10 | 1994-07-20 | 東洋紡績株式会社 | Cellulose ester type hollow fiber plasma separation membrane |
| KR20200119818A (en) * | 2018-02-19 | 2020-10-20 | 바이엘 헬쓰케어 엘엘씨 | Modified filter membrane and method |
| JP7550009B2 (en) * | 2019-10-10 | 2024-09-12 | 旭化成メディカル株式会社 | Ascites filtration and concentration device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3724672A (en) * | 1970-07-27 | 1973-04-03 | R Leonard | Asymmetric hollow fiber membranes and method of fabrication |
| FR2194551A1 (en) * | 1972-08-01 | 1974-03-01 | Monsanto Co | Hollow cellulose ester filaments prodn - for water purification by low pressu-re reverse osmosis |
| FR2199014B1 (en) * | 1972-09-12 | 1975-03-14 | Rhone Poulenc Ind | |
| DE2257697C3 (en) * | 1972-11-21 | 1978-09-28 | Asahi Kasei Kogyo K.K., Osaka (Japan) | Cellulose acetate symmetry porous membrane filter and process for its manufacture |
| JPS5193786A (en) * | 1975-02-15 | 1976-08-17 | Makurokagatano chukuseni | |
| JPS6029282B2 (en) * | 1976-09-03 | 1985-07-10 | 旭化成株式会社 | Semipermeable membrane and its manufacturing method |
| DE2657697C2 (en) * | 1976-12-20 | 1985-07-25 | Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar | Slide projector with a slide changing device |
-
1977
- 1977-06-20 JP JP7212377A patent/JPS546916A/en active Pending
-
1978
- 1978-06-15 FR FR7817902A patent/FR2395060A1/en active Granted
- 1978-06-15 GB GB7827035A patent/GB2001899B/en not_active Expired
- 1978-06-20 DE DE19782827012 patent/DE2827012C3/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722795A (en) * | 1982-07-02 | 1988-02-02 | Gambro Dialysatoren Kg | Polyamide hollow fiber filtration membrane having barrier layer |
| FR2534475A1 (en) * | 1982-10-14 | 1984-04-20 | Fujisawa Pharmaceutical Co | PROCESS FOR THE CONCENTRATION OF AN AQUEOUS ANTIBIOTIC B-LACTAM SOLUTION |
| GB2128611A (en) * | 1982-10-14 | 1984-05-02 | Fujisawa Pharmaceutical Co | Method of concentrating an aqueous beta-lactam antibiotic solution |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2395060A1 (en) | 1979-01-19 |
| DE2827012A1 (en) | 1978-12-21 |
| DE2827012B2 (en) | 1981-04-02 |
| DE2827012C3 (en) | 1987-12-03 |
| GB2001899B (en) | 1982-01-27 |
| FR2395060B1 (en) | 1982-09-10 |
| JPS546916A (en) | 1979-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |