GB1280068A - Process for the manufacture of a reinforced semipermeable membrane tube - Google Patents
Process for the manufacture of a reinforced semipermeable membrane tubeInfo
- Publication number
- GB1280068A GB1280068A GB27537/70A GB2753770A GB1280068A GB 1280068 A GB1280068 A GB 1280068A GB 27537/70 A GB27537/70 A GB 27537/70A GB 2753770 A GB2753770 A GB 2753770A GB 1280068 A GB1280068 A GB 1280068A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- film
- solvent
- layer
- precipitating
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000463 material Substances 0.000 abstract 3
- 230000001376 precipitating effect Effects 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000001427 coherent effect Effects 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
1280068 Semi-permeable membrane tube KALLE AG 8 June 1970 [9 June 1969] 27537/70 Headings B1X and B2E [Also in Division F2] A reinforced semi permeable membrane tube is made by a process comprising conveying a coherent web 1 of permeable material downwardly and simultaneously continuously forming it into a tube with a longitudinal seam, for example by means of folding devices 3 which fold the material around the outside of die tube 5b, applying a layer of a solution of a film-forming substance to the inside of the formed tube, for example through annular die 5, evaporating part of the solvent from the layer and precipitating the film forming substance from the remaining solution in the layer. Evaporation of solvent from the film may be controlled by introducing air or solvent-containing air into the tube through pipe 8. The precipitating agent 12 for the filmformer may be both inside and outside the tube. In the embodiment shown, web 1 is of paper, the coating solution comprise cellulose acetate and the precipitating liquid is water. The finished tube is collapsed as it passes over pulley 15 and is reeled at 16. Other web materials mentioned are fibre fleece, natural or synthetic fibre fabric or perforated plastics film. There is a reference to using the finished tube in perforated sheet metal vessels.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1929158A DE1929158C3 (en) | 1969-06-09 | 1969-06-09 | Method of making a reinforced semi-permeable tubular membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1280068A true GB1280068A (en) | 1972-07-05 |
Family
ID=5736452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27537/70A Expired GB1280068A (en) | 1969-06-09 | 1970-06-08 | Process for the manufacture of a reinforced semipermeable membrane tube |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5329676B1 (en) |
| BE (1) | BE751642A (en) |
| CA (1) | CA928590A (en) |
| CH (1) | CH500744A (en) |
| DE (1) | DE1929158C3 (en) |
| FR (1) | FR2050158A5 (en) |
| GB (1) | GB1280068A (en) |
| IL (1) | IL34681A (en) |
| LU (1) | LU61083A1 (en) |
| NL (1) | NL167855C (en) |
| SE (1) | SE360267B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0819467A3 (en) * | 1996-07-17 | 1998-03-18 | Stork Friesland B.V. | Semipermeable capillary and also a method and device for manufacturing it |
| WO2020009584A1 (en) * | 2018-07-06 | 2020-01-09 | Berghof Membrane Technology GmbH | Method and tubular membrane for performing a forward osmosis processing |
| NL2021992B1 (en) * | 2018-07-06 | 2020-01-16 | Berghof Membrane Tech Gmbh | Method and tubular membrane for performing a forward osmosis processing |
| CN112517331A (en) * | 2019-09-17 | 2021-03-19 | 日立金属株式会社 | Pipe manufacturing device and pipe manufacturing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9410429D0 (en) * | 1994-05-25 | 1994-07-13 | Pci Membrane Systems Ltd | Filtration |
-
1969
- 1969-06-09 DE DE1929158A patent/DE1929158C3/en not_active Expired
-
1970
- 1970-05-28 NL NL7007713A patent/NL167855C/en not_active IP Right Cessation
- 1970-06-04 JP JP4840170A patent/JPS5329676B1/ja active Pending
- 1970-06-05 CA CA084751A patent/CA928590A/en not_active Expired
- 1970-06-08 LU LU61083D patent/LU61083A1/xx unknown
- 1970-06-08 BE BE751642D patent/BE751642A/en not_active IP Right Cessation
- 1970-06-08 GB GB27537/70A patent/GB1280068A/en not_active Expired
- 1970-06-08 IL IL34681A patent/IL34681A/en unknown
- 1970-06-08 CH CH859170A patent/CH500744A/en not_active IP Right Cessation
- 1970-06-08 SE SE07921/70A patent/SE360267B/xx unknown
- 1970-06-09 FR FR7021142A patent/FR2050158A5/fr not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0819467A3 (en) * | 1996-07-17 | 1998-03-18 | Stork Friesland B.V. | Semipermeable capillary and also a method and device for manufacturing it |
| WO2020009584A1 (en) * | 2018-07-06 | 2020-01-09 | Berghof Membrane Technology GmbH | Method and tubular membrane for performing a forward osmosis processing |
| NL2021992B1 (en) * | 2018-07-06 | 2020-01-16 | Berghof Membrane Tech Gmbh | Method and tubular membrane for performing a forward osmosis processing |
| CN112449613A (en) * | 2018-07-06 | 2021-03-05 | 贝高福膜技术有限责任公司 | Method and tubular membrane for carrying out forward osmosis treatment |
| CN112449613B (en) * | 2018-07-06 | 2023-03-21 | 贝高福膜技术有限责任公司 | Method and tubular membrane for carrying out forward osmosis treatment |
| CN112517331A (en) * | 2019-09-17 | 2021-03-19 | 日立金属株式会社 | Pipe manufacturing device and pipe manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1929158C3 (en) | 1979-02-22 |
| SE360267B (en) | 1973-09-24 |
| NL167855B (en) | 1981-09-16 |
| IL34681A0 (en) | 1970-08-19 |
| FR2050158A5 (en) | 1971-03-26 |
| CA928590A (en) | 1973-06-19 |
| JPS5329676B1 (en) | 1978-08-22 |
| BE751642A (en) | 1970-12-08 |
| IL34681A (en) | 1973-07-30 |
| DE1929158A1 (en) | 1970-12-23 |
| NL167855C (en) | 1982-02-16 |
| NL7007713A (en) | 1970-12-11 |
| DE1929158B2 (en) | 1978-06-29 |
| CH500744A (en) | 1970-12-31 |
| LU61083A1 (en) | 1972-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PE20 | Patent expired after termination of 20 years |