AU5973900A - Membrane used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid - Google Patents

Membrane used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid

Info

Publication number
AU5973900A
AU5973900A AU59739/00A AU5973900A AU5973900A AU 5973900 A AU5973900 A AU 5973900A AU 59739/00 A AU59739/00 A AU 59739/00A AU 5973900 A AU5973900 A AU 5973900A AU 5973900 A AU5973900 A AU 5973900A
Authority
AU
Australia
Prior art keywords
membrane
dissolved
constructional
separation
layer
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.)
Abandoned
Application number
AU59739/00A
Inventor
Joachim Neubert
Karl F. Staab
Peter Tallafuss
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.)
PARKAP BETEILIGUNGS und VERWAL
Original Assignee
PARKAP BETEILIGUNGS und VERWAL
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 PARKAP BETEILIGUNGS und VERWAL filed Critical PARKAP BETEILIGUNGS und VERWAL
Publication of AU5973900A publication Critical patent/AU5973900A/en
Abandoned legal-status Critical Current

Links

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
    • B01D71/02—Inorganic material
    • B01D71/024—Oxides
    • 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
    • B01D69/12—Composite membranes; Ultra-thin 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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/1216—Three or more layers
    • 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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/1218—Layers having the same chemical composition, but different properties, e.g. pore size, molecular weight or porosity
    • 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
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • 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
    • B01D71/02—Inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/12—Adsorbents being present on the surface of the membranes or in the pores

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to a membrane that is used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid. Said membrane consists of a flat substrate with relatively wide through-flow openings on which a separating layer is applied that consists of a composite of a granular filler and a binder. The inventive separating layer consists of at least two superimposed interlinked constructional layers of different structure. The superimposed constructional layers applied on the substrate contain respective graded sequences of filler ratios and correspondingly higher binder ratios as compared to a preceding constructional layer. When the membrane is operational and fitted in a separation installation, the separating layer is oriented in such a manner that the constructional layer with the lowest filler ratio is impinged by the liquid that contains the substances to be separated. The inventive membrane structure allows a substantial reduction of the inner resistance to flow of the membrane. At the same time, a high flux can be achieved at a relatively low transmembrane pressure and a relatively low overflow rate.
AU59739/00A 1999-07-09 2000-06-16 Membrane used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid Abandoned AU5973900A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19931846 1999-07-09
DE19931846A DE19931846C2 (en) 1999-07-09 1999-07-09 Membrane as a composite membrane for separating dissolved and suspended substances as well as dissolved salts from their carrier liquid
PCT/EP2000/005552 WO2001003815A2 (en) 1999-07-09 2000-06-16 Membrane used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid

Publications (1)

Publication Number Publication Date
AU5973900A true AU5973900A (en) 2001-01-30

Family

ID=7914092

Family Applications (1)

Application Number Title Priority Date Filing Date
AU59739/00A Abandoned AU5973900A (en) 1999-07-09 2000-06-16 Membrane used as a composite membrane for the separation of dissolved and suspended substances and dissolved salts from their carrier liquid

Country Status (5)

Country Link
EP (1) EP1202794B1 (en)
AT (1) ATE233124T1 (en)
AU (1) AU5973900A (en)
DE (2) DE19931846C2 (en)
WO (1) WO2001003815A2 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA940677A (en) * 1970-06-22 1974-01-29 Regis R. Stana Stabilization of desalination membranes
BE904553A (en) * 1986-04-07 1986-07-31 Studiecentrum Kernenergi Membranes for micro-, ultra- and hyper-filtration - made by shaping dispersion of metal oxide particles in soln. of polymer binder, and removing solvent
FR2600266B1 (en) * 1986-06-19 1990-08-24 Lorraine Carbone PROCESS FOR MANUFACTURING A POROUS MINERAL MEMBRANE ON A MINERAL SUPPORT
NL9101609A (en) * 1991-09-24 1993-04-16 Shell Int Research Method for producing a pinhole-free support layer
DE4210413C2 (en) * 1992-03-30 1994-10-13 Willi Keutmann Device for the purification of oil-containing waste water and method for the production of this device
JPH11100283A (en) * 1997-09-30 1999-04-13 Ngk Insulators Ltd Porous film made of ceramic using plastic as binder

Also Published As

Publication number Publication date
ATE233124T1 (en) 2003-03-15
WO2001003815A2 (en) 2001-01-18
EP1202794B1 (en) 2003-02-26
DE50001344D1 (en) 2003-04-03
DE19931846C2 (en) 2002-03-14
WO2001003815A3 (en) 2001-05-25
DE19931846A1 (en) 2001-01-18
EP1202794A2 (en) 2002-05-08

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase