GB993037A - Improvements in or relating to filtration materials - Google Patents
Improvements in or relating to filtration materialsInfo
- Publication number
- GB993037A GB993037A GB39737/62A GB3973762A GB993037A GB 993037 A GB993037 A GB 993037A GB 39737/62 A GB39737/62 A GB 39737/62A GB 3973762 A GB3973762 A GB 3973762A GB 993037 A GB993037 A GB 993037A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fabric
- shape
- coagulation
- high molecular
- filter plate
- 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
- 239000000463 material Substances 0.000 title abstract 6
- 238000001914 filtration Methods 0.000 title abstract 2
- 239000004744 fabric Substances 0.000 abstract 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 230000001112 coagulating effect Effects 0.000 abstract 2
- 230000015271 coagulation Effects 0.000 abstract 2
- 238000005345 coagulation Methods 0.000 abstract 2
- 239000011148 porous material Substances 0.000 abstract 2
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 1
- 229920002994 synthetic fiber Polymers 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/08—Thickening liquid suspensions by filtration
- B01D17/085—Thickening liquid suspensions by filtration with membranes
-
- 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
- B01D69/107—Organic support material
- B01D69/1071—Woven, non-woven or net mesh
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filtering Materials (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A material for fine filtration, e.g. of aircraft fuel and gaseous products, comprises a fabric of natural or artificial fibres having deposited thereon a coagulated high molecular material in the shape of a three dimensional sieve with pores of a diameter of 0,3-3 microns, the number of pores per square centimetre being more than 106. The material may be manufactured by stretching a fabric which has been de-aerated, upon a horizontal smooth surface, applying a layer of a coagulating solution of a high molecular material, e.g. nitrocellulose or polyvinyl alcohol, by means of a casting device, and after coagulation of the material, the layer thus produced is dried in the stretched state to a constant weight and to the shape of a filter plate. The process may be performed continuously on an endless moving belt upon which the supporting fabric is carried after being unwound from a spool and which in turn passes through the individual operating stages, i.e. the removal of the air-bubbles from the fabric by means of a suitable liquid agent, e.g. acetone, applying the coagulating solution, accelerating the coagulation of the solution by the action of steam, water or similar medium, and finally drying the product to a constant weight and to the shape of a filter plate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS642461 | 1961-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB993037A true GB993037A (en) | 1965-05-26 |
Family
ID=5411222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39737/62A Expired GB993037A (en) | 1961-10-31 | 1962-10-19 | Improvements in or relating to filtration materials |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH408862A (en) |
| GB (1) | GB993037A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0247597A1 (en) * | 1986-05-30 | 1987-12-02 | Mitsubishi Rayon Co., Ltd. | Process for producing porous membranes |
| GB2316015A (en) * | 1996-08-10 | 1998-02-18 | Scapa Group Plc | Filtering kaolin particles using a polymer pore filter |
-
1962
- 1962-10-19 GB GB39737/62A patent/GB993037A/en not_active Expired
- 1962-10-24 CH CH1248562A patent/CH408862A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0247597A1 (en) * | 1986-05-30 | 1987-12-02 | Mitsubishi Rayon Co., Ltd. | Process for producing porous membranes |
| US4869857A (en) * | 1986-05-30 | 1989-09-26 | Itsubishi Rayon Co., Ltd. | Process for producing porous membranes |
| 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 |
|---|---|
| CH408862A (en) | 1966-03-15 |
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