GB203714A - Improvements in and relating to the manufacture of ultra-filter membranes - Google Patents
Improvements in and relating to the manufacture of ultra-filter membranesInfo
- Publication number
- GB203714A GB203714A GB22640/23A GB2264023A GB203714A GB 203714 A GB203714 A GB 203714A GB 22640/23 A GB22640/23 A GB 22640/23A GB 2264023 A GB2264023 A GB 2264023A GB 203714 A GB203714 A GB 203714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cloth
- coagulating liquid
- collodion
- vat
- trough
- 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.)
- Expired
Links
- 239000012528 membrane Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000004744 fabric Substances 0.000 abstract 6
- 239000007788 liquid Substances 0.000 abstract 5
- 230000001112 coagulating effect Effects 0.000 abstract 4
- 229920002678 cellulose Polymers 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000004040 coloring Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- 229940079938 nitrocellulose Drugs 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
Classifications
-
- 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
- B01D69/10—Supported membranes; Membrane supports
- B01D69/106—Membranes in the pores of a support, e.g. polymerized in the pores or voids
-
- 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
- B01D71/22—Cellulose ethers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/24—Viscous coated filter
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
203,714. Duclaux, J. Sept. 11, 1922, [Convention date]. Single coatings. -Filtering-membranes are formed on a strip of cloth which is guided by rollers so as to dip first into a solution of cellulose ester and then into a coagulating liquid. The cloth passing from a roll a to a roll g is caused by rollers c, d, e to pass through a trough b containing a solution of nitro-cellulose or other cellulose ester and a vat f containing water or other coagulating liquid. The speed of travel is such that the film of collodion is solidified before reaching the roller d. To prevent adhesion the roller d may be covered with porous material, such as cloth or blotting paper, impregnated with the coagulating liquid. More than one vat f may be used. To cover the solvent of the cellulose ester, vapours given off during the passage of the cloth between the trough b and roller d may be collected in a casing which may surround this part of the apparatus. Some solvent may also be recovered from the coagulating liquid. Variations in the texture or thickness of the membrane formed may be rendered visible by adding colouring matter to the liquid in the vat f. Before receiving the collodion the cloth may be moistened with water or a solution which will modify the filtering properties of the film afterwards formed. Instead of using the trough b a jet or film of collodion may be projected from a nozzle on to the cloth on one or both sides thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR567970T | 1922-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB203714A true GB203714A (en) | 1924-06-19 |
Family
ID=8948169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22640/23A Expired GB203714A (en) | 1922-09-11 | 1923-09-08 | Improvements in and relating to the manufacture of ultra-filter membranes |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1720670A (en) |
| FR (1) | FR567970A (en) |
| GB (1) | GB203714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2316015A (en) * | 1996-08-10 | 1998-02-18 | Scapa Group Plc | Filtering kaolin particles using a polymer pore filter |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2584387A (en) * | 1944-11-06 | 1952-02-05 | Bowser Inc | Expendible cartridge filter and method of making same |
| US3762566A (en) * | 1971-08-03 | 1973-10-02 | Abcor Inc | Supported semipermeable membranes and process for preparing same |
| FR2182730B1 (en) * | 1972-05-05 | 1974-09-27 | Rhone Poulenc Sa | |
| US3912834A (en) * | 1972-06-05 | 1975-10-14 | Kanegafuchi Chemical Ind | Process for producing a selectively permeable composite |
| US4681605A (en) * | 1985-06-27 | 1987-07-21 | A/G Technology Corporation | Anisotropic membranes for gas separation |
| GB8522847D0 (en) * | 1985-09-16 | 1985-10-23 | Shell Int Research | Supported membrane |
-
1922
- 1922-09-11 FR FR567970D patent/FR567970A/en not_active Expired
-
1923
- 1923-08-30 US US660179A patent/US1720670A/en not_active Expired - Lifetime
- 1923-09-08 GB GB22640/23A patent/GB203714A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2316015A (en) * | 1996-08-10 | 1998-02-18 | Scapa Group Plc | Filtering kaolin particles using a polymer pore filter |
| GB2316015B (en) * | 1996-08-10 | 2000-08-30 | Scapa Group Plc | Polymer pore structure |
Also Published As
| Publication number | Publication date |
|---|---|
| US1720670A (en) | 1929-07-16 |
| FR567970A (en) | 1924-03-12 |
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