DE3737931A1 - Method for manufacturing a pressure-stable tubular membrane - Google Patents

Method for manufacturing a pressure-stable tubular membrane

Info

Publication number
DE3737931A1
DE3737931A1 DE19873737931 DE3737931A DE3737931A1 DE 3737931 A1 DE3737931 A1 DE 3737931A1 DE 19873737931 DE19873737931 DE 19873737931 DE 3737931 A DE3737931 A DE 3737931A DE 3737931 A1 DE3737931 A1 DE 3737931A1
Authority
DE
Germany
Prior art keywords
pressure
stable
tubular membrane
membrane
manufacturing
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.)
Granted
Application number
DE19873737931
Other languages
German (de)
Other versions
DE3737931C2 (en
Inventor
Bernd Dipl Chem Dr Penth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mbt Membrantechnik 6603 Sulzbach De GmbH
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to DE3737931A priority Critical patent/DE3737931C2/en
Publication of DE3737931A1 publication Critical patent/DE3737931A1/en
Application granted granted Critical
Publication of DE3737931C2 publication Critical patent/DE3737931C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B01D69/107—Organic support material
    • B01D69/1071—Woven, non-woven or net mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B01D63/063—Tubular membrane modules with membranes on a surface of a support tube on the inner surface thereof
    • 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
    • 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
    • B01D69/108—Inorganic support material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/564—Winding and joining, e.g. winding spirally for making non-tubular articles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

In order to manufacture a pressure-stable tubular membrane for reverse osmosis and ultrafiltration, a tubular membrane which is not pressure-stable is wrapped and strengthened with a weave of glass fibre or plastic in such a way, that a pressure-stable tubular membrane is formed.

Description

Die Erfindung betrifft die Herstellung einer druckstabilen Rohrmembran durch Umwickeln einer nicht druckstabilen Rohrmembran mit einem Fasernetz aus Glas oder Kunststoff und Verkleben mit einem geeigneten Kleber, bzw. durch thermischen Verschmelzen der Fasern untereinander.The invention relates to the production of a pressure-stable tubular membrane by wrapping a non-pressure-stable tubular membrane with a Fiber network made of glass or plastic and gluing with a suitable one Glue, or by thermally fusing the fibers together.

Nach dem bisherigen Stand der Technik benötigt eine für die Druckfiltration Umkehrosmose eingesetzte rohrförmige Filtermembran ein perforiertes Stütz- und Drainagerohr aus druckstabilem Material. Es kommen dafür entsprechende Rohre aus Kunststoff, Metall oder Keramik zum Einsatz.According to the current state of the art one is required for the Pressure filtration reverse osmosis inserted tubular filter membrane perforated support and drainage pipe made of pressure-stable material. It corresponding pipes made of plastic, metal or ceramic are used for use.

Zur Verringerung des Herstellaufwandes, der Kosten und des Gewichtes werden nach dem erfindungsgemäßen Verfahren Schlauchmembranen, die käuflich erworben (HOECHST Werk Kalle, Wiesbaden) oder nach einem bekannten, in der Literatur beschriebenen Verfahren (s. Ullmann's technische Enzyklopädie, Membranen) oder einem anderen Verfahren aus einer Kunststoffbeschichtung und eventuell Vlies hergestellt wurden, mit einem in geeignetem Klebstoff getränkten Gewebenetz aus Kunststoff oder Glasfasern derart gewickelt, daß nach Aushärten des Klebers ein die ursprüngliche Rohrmembran ummantelndes poröses, druckstabiles Rohr entsteht. Alternativ kann ein ungetränktes Gewebenetz eingesetzt werden, welches erst nach dem Umwickeln um die ursprüngliche Rohrmembran mittels eines Klebers (z. B. Reaktionsharz, Epoxid, Polyester oder Urethan oder Schmelzkleber) oder durch thermische Behandlung durch teilweises Schmelzen (z. B. mit einem Heißluftfön oder einem Heizstab) verfestigt wird.To reduce the manufacturing effort, costs and weight are tubular membranes according to the inventive method purchased (HOECHST Kalle plant, Wiesbaden) or after a known processes described in the literature (see Ullmann's technical encyclopedia, membranes) or another method a plastic coating and possibly fleece were made, with a plastic mesh soaked in a suitable adhesive or glass fibers wound in such a way that after curing the adhesive the original tube membrane encasing porous, pressure-stable tube arises. Alternatively, an impregnated mesh can be used which is only after wrapping around the original Pipe membrane using an adhesive (e.g. reaction resin, epoxy, Polyester or urethane or hot melt adhesive) or by thermal Treatment by partial melting (e.g. with a hot air dryer or a heating element) is solidified.

Das Umwickeln der ursprünglichen Rohrmembran kann sowohl entweder spiralförmig in schmalen Bahnen, einzeln oder in mehreren Lagen in gleicher oder entgegengesetzter Richtung als auch als breite, über die gesamte Länge der Rohrmembran reichende Bahn gewickelt werden. Wrapping the original tubular membrane can either be spiral in narrow paths, individually or in several layers in same or opposite direction as well as broad, across the entire length of the tube membrane-reaching web can be wrapped.  

Das entstehende poröse Hüllrohr erweist sich als druckstabil in Abhängigkeit von der Art des Gewebenetzes, der geometrischen Anordnung der Lagen und der Anzahl der Lagen als druckstabil für den Einsatz in der Umkehrosmose. Wegen der dort auftretenden niedrigeren Drücke wird der gesamte Bereich der Mikro-, und Ultrafiltration dabei eingeschlossen.The resulting porous cladding tube proves to be pressure stable in Depends on the type of mesh, the geometric arrangement of the layers and the number of layers as pressure stable for use in reverse osmosis. Because of the lower pressures that occur there the entire area of micro and ultrafiltration locked in.

Gute Druckstabilität wurde erreicht bei Verwendung eines handelsüblichen Glasfasernetzes (z. B. Glasgewebe SK der Firma Kast, Postfach 106, 8972 Sonthofen) in Bahnen von vorzugsweise 5 cm Breite, einem Wickelwinkel von 60 Grad, 5 übereinandergelegte Bahnen und einer Verfestigung mit einem Epoxid-Reaktionsharz.Good pressure stability was achieved when in use a commercially available glass fiber network (e.g. glass fabric SK from the company Kast, Postfach 106, 8972 Sonthofen) in strips of preferably 5 cm Width, a winding angle of 60 degrees, 5 superimposed webs and solidification with an epoxy reaction resin.

Claims (1)

Verfahren zur Herstellung von Rohrmembranen für die Druckfiltration vorwiegend für den Einsatz in der Umkehrosmose und Ultrafiltration, dadurch gekennzeichnet, daß eine nicht druckstabile Rohrmembran mit einem Glasfaser-, oder Kunststoffnetz umwickelt und durch das Auftragen eines Klebers oder durch Schmelzkleben derart verfestigt wird, daß das entstandene umhüllende Rohr im Verbund mit dem umhüllten Rohr ein druckstabiles für die Umkehrosmose geeignetes Membranrohr ergibt.A process for the production of tubular membranes for pressure filtration mainly for use in reverse osmosis and ultrafiltration, characterized in that a non-pressure-stable tubular membrane is wrapped with a glass fiber or plastic network and is solidified by applying an adhesive or by hot melt bonding such that the resultant enveloping tube in combination with the enveloped tube results in a pressure-stable membrane tube suitable for reverse osmosis.
DE3737931A 1987-11-07 1987-11-07 Process for the production of a pressure-stable tubular membrane Expired - Fee Related DE3737931C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3737931A DE3737931C2 (en) 1987-11-07 1987-11-07 Process for the production of a pressure-stable tubular membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3737931A DE3737931C2 (en) 1987-11-07 1987-11-07 Process for the production of a pressure-stable tubular membrane

Publications (2)

Publication Number Publication Date
DE3737931A1 true DE3737931A1 (en) 1989-05-18
DE3737931C2 DE3737931C2 (en) 1996-03-07

Family

ID=6340071

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3737931A Expired - Fee Related DE3737931C2 (en) 1987-11-07 1987-11-07 Process for the production of a pressure-stable tubular membrane

Country Status (1)

Country Link
DE (1) DE3737931C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4039967A1 (en) * 1990-12-14 1992-06-17 Preussag Anlagenbau PLANT FOR SEPARATING LIQUID OR GASEOUS MIXTURES
EP0601301A1 (en) * 1992-10-09 1994-06-15 Holger Knappe Membrane elements for reverse osmosis

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS ERMITTELT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4039967A1 (en) * 1990-12-14 1992-06-17 Preussag Anlagenbau PLANT FOR SEPARATING LIQUID OR GASEOUS MIXTURES
EP0601301A1 (en) * 1992-10-09 1994-06-15 Holger Knappe Membrane elements for reverse osmosis

Also Published As

Publication number Publication date
DE3737931C2 (en) 1996-03-07

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: MBT MEMBRANTECHNIK GMBH, 6603 SULZBACH, DE

8181 Inventor (new situation)

Free format text: PENTH, BERND, DIPL.-CHEM. DR., 6688 ILLINGEN, DE

8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: B01D 67/00

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee