CA2077490A1 - Integrity-Testable Wet-Dry-Reversible Ultra-Filtration Membranes and Method for Testing Same - Google Patents

Integrity-Testable Wet-Dry-Reversible Ultra-Filtration Membranes and Method for Testing Same

Info

Publication number
CA2077490A1
CA2077490A1 CA2077490A CA2077490A CA2077490A1 CA 2077490 A1 CA2077490 A1 CA 2077490A1 CA 2077490 A CA2077490 A CA 2077490A CA 2077490 A CA2077490 A CA 2077490A CA 2077490 A1 CA2077490 A1 CA 2077490A1
Authority
CA
Canada
Prior art keywords
wet
ultrafiltration
dry
testable
reversible
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
CA2077490A
Other languages
French (fr)
Other versions
CA2077490C (en
Inventor
Peter J. Degen
John Mischenko Iii
Robert E. Kesting
Moira H. Bilich
Trevor A. Staff
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.)
Pall Corp
Original Assignee
Pall 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 Pall Corp filed Critical Pall Corp
Publication of CA2077490A1 publication Critical patent/CA2077490A1/en
Application granted granted Critical
Publication of CA2077490C publication Critical patent/CA2077490C/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
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
    • B01D65/102—Detection of leaks in membranes
    • 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
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082—Investigating permeability by forcing a fluid through a sample
    • G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B01D2323/081—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B01D2323/082—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/20—Specific permeability or cut-off range
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N2015/086—Investigating permeability, pore-volume, or surface area of porous materials of films, membranes or pellicules

Abstract

The present invention provides an ultrafiltration/diafiltration polymeric membrane that is capable of excluding O. 1 µm diameter, monodisperse, latex particles with a rejection coefficient greater than 0. 998 and is capable of being fully dried without loss of such ultrafiltration properties and which after being wet/dry cycled at least once will have a KUF f low rate at 10 psi, using 1-butanol saturated with water as the wetting liquid and water saturated with 1-butanol as the displacing liquid at ambient temperature, below 50 cc/min per square foot of membrane area. The present invention also provides a method of filtering a fluid through the present inventive ultrafiltration membrane, as well as a process of preparing the present inventive ultrafiltration membrane .
CA002077490A 1992-05-13 1992-09-03 Integrity-testable wet-dry-reversible ultra-filtration membranes and method for testing same Expired - Fee Related CA2077490C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/882,473 1992-05-13
US07/882,473 US5480554A (en) 1992-05-13 1992-05-13 Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same

Publications (2)

Publication Number Publication Date
CA2077490A1 true CA2077490A1 (en) 1993-11-14
CA2077490C CA2077490C (en) 1997-12-16

Family

ID=25380649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002077490A Expired - Fee Related CA2077490C (en) 1992-05-13 1992-09-03 Integrity-testable wet-dry-reversible ultra-filtration membranes and method for testing same

Country Status (10)

Country Link
US (2) US5480554A (en)
JP (1) JP2747194B2 (en)
CN (1) CN1050768C (en)
CA (1) CA2077490C (en)
DE (1) DE4315718B4 (en)
FR (1) FR2691077B1 (en)
GB (1) GB2266851B (en)
IT (1) IT1260658B (en)
SE (1) SE511394C2 (en)
TW (1) TW272139B (en)

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Also Published As

Publication number Publication date
CA2077490C (en) 1997-12-16
FR2691077B1 (en) 1994-12-30
DE4315718A1 (en) 1993-11-18
JP2747194B2 (en) 1998-05-06
ITTO930280A1 (en) 1994-10-23
DE4315718B4 (en) 2008-09-11
SE9301492L (en) 1993-11-14
SE511394C2 (en) 1999-09-20
SE9301492D0 (en) 1993-04-30
CN1078661A (en) 1993-11-24
TW272139B (en) 1996-03-11
GB2266851A (en) 1993-11-17
CN1050768C (en) 2000-03-29
IT1260658B (en) 1996-04-22
GB2266851B (en) 1996-09-25
US5685991A (en) 1997-11-11
GB9308385D0 (en) 1993-06-09
ITTO930280A0 (en) 1993-04-23
FR2691077A1 (en) 1993-11-19
US5480554A (en) 1996-01-02
JPH0679149A (en) 1994-03-22

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