IL42861A - Flexible semi-permeable tubular assembly and process for the preparation thereof - Google Patents
Flexible semi-permeable tubular assembly and process for the preparation thereofInfo
- Publication number
- IL42861A IL42861A IL42861A IL4286173A IL42861A IL 42861 A IL42861 A IL 42861A IL 42861 A IL42861 A IL 42861A IL 4286173 A IL4286173 A IL 4286173A IL 42861 A IL42861 A IL 42861A
- Authority
- IL
- Israel
- Prior art keywords
- cord
- assembly according
- assembly
- sheath
- membrane
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 11
- 238000002360 preparation method Methods 0.000 title claims 2
- 239000012528 membrane Substances 0.000 claims 8
- 229920005989 resin Polymers 0.000 claims 5
- 239000011347 resin Substances 0.000 claims 5
- 239000004753 textile Substances 0.000 claims 5
- 239000012530 fluid Substances 0.000 claims 3
- 238000001223 reverse osmosis Methods 0.000 claims 2
- 238000000108 ultra-filtration Methods 0.000 claims 2
- 239000004743 Polypropylene Substances 0.000 claims 1
- 229920002301 cellulose acetate Polymers 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000003822 epoxy resin Substances 0.000 claims 1
- 238000001704 evaporation Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 238000009499 grossing Methods 0.000 claims 1
- 239000004745 nonwoven fabric Substances 0.000 claims 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 229920001568 phenolic resin Polymers 0.000 claims 1
- 239000005011 phenolic resin Substances 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 229920001225 polyester resin Polymers 0.000 claims 1
- 239000004645 polyester resin Substances 0.000 claims 1
- -1 polypropylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- 239000002759 woven fabric Substances 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
- B01D63/062—Tubular membrane modules with membranes on a surface of a support tube
- B01D63/065—Tubular membrane modules with membranes on a surface of a support tube on the outer surface thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
-
- 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
- B01D69/04—Tubular membranes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Claims (3)
1. WE CLAIM 1, A flexible semi-permeable tubular assembly . which consists essentially of a cord comprising a textile sheath which carries a semi-permeable membrane, said sheath being composed of yarns, the external surface of the sheath being compressed and flattened, the internal surface of the sheath defining an axial channel v/hich communicates with the exterior.
2. , An assembly according to claim 1, in which the cross-sections of the textile sheath are substantially circular, 3, An assembly according to claim 1 or 2, in which the yarns, fibres or filaments at the exterior surface of the sheath are bent over on the latter, h . An assembly according to any one of the preceding claims which has an external diameter, excluding the membrane, of between 1 and 10 mm. 5, An assembly according to any one of the preceding claims in which the ratio of the external diameter to the internal diameter of the hollow cord is between 2 and 5. 6, An assembly according to any one of the preceding claims, in which the hollow cord consists of several compressed concentric textile layers, 7, An assembly according to any one of the preceding claims in which the hollow cord consists of one or more textile layers of knitted, braided, woven or non-woven fabrics, the layers being the same or different. - - 8. An assembly according to any one of the preceding claims in which the membrane covers a heat-shrunk hollow cord, 9. An assembly according to any one of the preceding claims in which the membrane covers a hollow cord impregnated with a resin. 10. An assembly according to any one of the preceding claims in which the hollow cord comprises yarns previously impregnated with a resin. 11. An assembly according to claim 9 or 10 in which the resin is a phenolic, polyester or epoxy resin. 12. An assembly according to any one of the preceding claims in which the sheath is made from polypropylene yarn. 1
3. An assembly according to any one of the preceding claims in which the membrane is of cellulose acetate. 1¾. An assembly according to claim 1 substantially as hereinbefore described, 15. An assembly according to claim 1 substantially as described in any one of the Examples. 16, Process for the preparation of an assembly as claimed in any one of the preceding claims which comprises smoothing the external surface of a hollow textile cord by passing it through at least one convergent ernal a semi-permeable membrane. 17. Process according to claim 16, in which the convergent tube or tubes are heated to a temperature which causes the yarn and/or the fibres of the cord to soften. 18. Process according to claim 16 or 17, in which the compressed cord is covered with a film-forming solution which, after evaporation of the solvent, forms a semi-permeable membrane. 19. Process according to any one of claims 16 to 18 in which the hollow cord is heat-shrunk by passing it through a zone which is at a temperature which is sufficient to cause the heat-shrinkable yarns and/or fibres present in the cord to soften. 20. Process according to any one of claims 16 to 19 in which the cord is impregnated with a resin and dried, and then the resin is cured, 21. Process according to claim 20 in which the cord is smoothed before and after the deposition, drying and curing & Lhiu-miimin-. ΰ ΐ sdt. . 22. Process according to claim 16 substantially as hereinbefore described. 23. Process according to claim 16 substantially as described in any one of the Examples. 2h. An assembly as defined in claim 1 whenever prepared by a process as claimed in any one of claims 16 to 23* - - 25, A method of purifying or concentrating a fluid by reverse osmosis, ultra-filtration or gas permeation in which the fluid is contacted with an assembly as claimed in any one of claims 1 to 15 and 2k. 26. Apparatus for purifying or concentrating a fluid by reverse osmosis, ultra-filtration or gas permeation in which the membrane is an assembly as claimed in any one of claims 1 to 15 and 2k,
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7227743A FR2194461B1 (en) | 1972-06-23 | 1972-08-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL42861A0 IL42861A0 (en) | 1973-10-25 |
| IL42861A true IL42861A (en) | 1976-08-31 |
Family
ID=9102702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL42861A IL42861A (en) | 1972-08-01 | 1973-07-31 | Flexible semi-permeable tubular assembly and process for the preparation thereof |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5135554B2 (en) |
| DK (1) | DK141683B (en) |
| ES (1) | ES417450A1 (en) |
| IL (1) | IL42861A (en) |
| IT (1) | IT992798B (en) |
| NO (1) | NO134646C (en) |
| SE (1) | SE383966B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5207220B2 (en) * | 2006-11-07 | 2013-06-12 | 三菱レイヨン株式会社 | HOLLOW POROUS MEMBRANE SUPPORT, HOLLOW POROUS MEMBRANE AND METHOD FOR PRODUCING THEM |
| JP2008114180A (en) * | 2006-11-07 | 2008-05-22 | Mitsubishi Rayon Co Ltd | HOLLOW POROUS MEMBRANE SUPPORT, HOLLOW POROUS MEMBRANE AND METHOD FOR PRODUCING THEM |
| JP2008126199A (en) * | 2006-11-24 | 2008-06-05 | Mitsubishi Rayon Co Ltd | Hollow porous membrane and method for producing the same |
| JP5197865B2 (en) * | 2012-04-26 | 2013-05-15 | 三菱レイヨン株式会社 | HOLLOW POROUS MEMBRANE SUPPORT, HOLLOW POROUS MEMBRANE AND METHOD FOR PRODUCING THEM |
| JP5666502B2 (en) * | 2012-05-25 | 2015-02-12 | 三菱レイヨン株式会社 | Hollow porous membrane and method for producing the same |
| JP5637176B2 (en) * | 2012-05-25 | 2014-12-10 | 三菱レイヨン株式会社 | Method for producing support for hollow porous membrane, hollow porous membrane and method for producing the same |
| JP5458141B2 (en) * | 2012-05-25 | 2014-04-02 | 三菱レイヨン株式会社 | Method for producing hollow porous membrane |
-
1973
- 1973-07-27 JP JP48084223A patent/JPS5135554B2/ja not_active Expired
- 1973-07-31 IL IL42861A patent/IL42861A/en unknown
- 1973-07-31 NO NO3070/73A patent/NO134646C/no unknown
- 1973-07-31 SE SE7310536A patent/SE383966B/en unknown
- 1973-07-31 DK DK421673AA patent/DK141683B/en unknown
- 1973-08-01 IT IT27418/73A patent/IT992798B/en active
- 1973-08-01 ES ES417450A patent/ES417450A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT992798B (en) | 1975-09-30 |
| SE383966B (en) | 1976-04-12 |
| NO134646C (en) | 1976-11-24 |
| IL42861A0 (en) | 1973-10-25 |
| JPS5135554B2 (en) | 1976-10-02 |
| DK141683B (en) | 1980-05-27 |
| JPS4964574A (en) | 1974-06-22 |
| NO134646B (en) | 1976-08-16 |
| DK141683C (en) | 1980-10-20 |
| ES417450A1 (en) | 1976-03-16 |
| SE7310536L (en) | 1974-02-04 |
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