FR2099183A5 - Water-insoluble membranes - having high through put rate ,for use in ultrafiltration - Google Patents

Water-insoluble membranes - having high through put rate ,for use in ultrafiltration

Info

Publication number
FR2099183A5
FR2099183A5 FR7122108A FR7122108A FR2099183A5 FR 2099183 A5 FR2099183 A5 FR 2099183A5 FR 7122108 A FR7122108 A FR 7122108A FR 7122108 A FR7122108 A FR 7122108A FR 2099183 A5 FR2099183 A5 FR 2099183A5
Authority
FR
France
Prior art keywords
membranes
water
polymer
ultrafiltration
particles
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
Application number
FR7122108A
Other languages
French (fr)
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.)
EMD Millipore Corp
Original Assignee
Millipore Corp
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 Millipore Corp filed Critical Millipore Corp
Application granted granted Critical
Publication of FR2099183A5 publication Critical patent/FR2099183A5/en
Expired 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
    • B01D69/14—Dynamic membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration
    • 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
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/28—Polymers of vinyl aromatic compounds
    • B01D71/281—Polystyrene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Water-insoluble membranes consists of mutually connected, essentially spherical submicron polymer particles, the interstices between particles being below 0.1 mu. The polymer may be (crosslinked) polystyrene or PMMA. The membranes may be prepared by forcing a polymer emulsion onto a porous support so that the polymer particles are retained on one side thereof whilst the liquid emulsion medium is allowed to pass through the support. The membranes have good mech. strength and selectivity and throughput. Used in separation of materials contained in solns. according to mol. wt. and in chromatography, making use of migration rate differentials between various materials.
FR7122108A 1970-06-18 1971-06-17 Water-insoluble membranes - having high through put rate ,for use in ultrafiltration Expired FR2099183A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4756070A 1970-06-18 1970-06-18

Publications (1)

Publication Number Publication Date
FR2099183A5 true FR2099183A5 (en) 1972-03-10

Family

ID=21949687

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7122108A Expired FR2099183A5 (en) 1970-06-18 1971-06-17 Water-insoluble membranes - having high through put rate ,for use in ultrafiltration

Country Status (2)

Country Link
DE (1) DE2116263A1 (en)
FR (1) FR2099183A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995003878A1 (en) * 1993-07-29 1995-02-09 The Dow Chemical Company Composite membranes and their preparation from polymer particles on a porous substrate
EP3263209A1 (en) 2016-06-30 2018-01-03 Basf Se Membranes comprising polymeric particle layers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2486974A1 (en) * 2011-02-10 2012-08-15 LANXESS Deutschland GmbH Filtration membrane
EP2883589A1 (en) * 2013-12-10 2015-06-17 Andreas Massold Filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995003878A1 (en) * 1993-07-29 1995-02-09 The Dow Chemical Company Composite membranes and their preparation from polymer particles on a porous substrate
EP3263209A1 (en) 2016-06-30 2018-01-03 Basf Se Membranes comprising polymeric particle layers

Also Published As

Publication number Publication date
DE2116263A1 (en) 1972-01-05

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Legal Events

Date Code Title Description
ST Notification of lapse