IL42861A - Flexible semi-permeable tubular assembly and process for the preparation thereof - Google Patents

Flexible semi-permeable tubular assembly and process for the preparation thereof

Info

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
Application number
IL42861A
Other versions
IL42861A0 (en
Original Assignee
Rhone Poulenc Sa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR7227743A external-priority patent/FR2194461B1/fr
Application filed by Rhone Poulenc Sa filed Critical Rhone Poulenc Sa
Publication of IL42861A0 publication Critical patent/IL42861A0/en
Publication of IL42861A publication Critical patent/IL42861A/en

Links

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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (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,
IL42861A 1972-08-01 1973-07-31 Flexible semi-permeable tubular assembly and process for the preparation thereof IL42861A (en)

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)

* Cited by examiner, † Cited by third party
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 Support for hollow porous membrane, hollow porous membrane and manufacturing method of them
JP2008126199A (en) * 2006-11-24 2008-06-05 Mitsubishi Rayon Co Ltd Hollow porous film and its manufacturing method
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
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
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
JP5458141B2 (en) * 2012-05-25 2014-04-02 三菱レイヨン株式会社 Method for producing hollow porous membrane

Also Published As

Publication number Publication date
IL42861A0 (en) 1973-10-25
IT992798B (en) 1975-09-30
DK141683C (en) 1980-10-20
ES417450A1 (en) 1976-03-16
DK141683B (en) 1980-05-27
NO134646C (en) 1976-11-24
JPS4964574A (en) 1974-06-22
SE7310536L (en) 1974-02-04
JPS5135554B2 (en) 1976-10-02
NO134646B (en) 1976-08-16
SE383966B (en) 1976-04-12

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