DE2967659D1 - Process for preparing polyamide membrane filter media and product as well as process for rating the effectiveness of a membrane sheet as a filter - Google Patents

Process for preparing polyamide membrane filter media and product as well as process for rating the effectiveness of a membrane sheet as a filter

Info

Publication number
DE2967659D1
DE2967659D1 DE7979101487T DE2967659T DE2967659D1 DE 2967659 D1 DE2967659 D1 DE 2967659D1 DE 7979101487 T DE7979101487 T DE 7979101487T DE 2967659 T DE2967659 T DE 2967659T DE 2967659 D1 DE2967659 D1 DE 2967659D1
Authority
DE
Germany
Prior art keywords
filter
rating
effectiveness
product
well
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
DE7979101487T
Other languages
English (en)
Inventor
David B Pall
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 Deutschland GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25421297&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE2967659(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pall Corp filed Critical Pall Corp
Application granted granted Critical
Publication of DE2967659D1 publication Critical patent/DE2967659D1/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B01D69/08—Hollow fibre 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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/44—Cartridge types
    • 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
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/38—Hydrophobic membranes
DE7979101487T 1978-05-15 1979-05-15 Process for preparing polyamide membrane filter media and product as well as process for rating the effectiveness of a membrane sheet as a filter Expired DE2967659D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90569878A 1978-05-15 1978-05-15

Publications (1)

Publication Number Publication Date
DE2967659D1 true DE2967659D1 (en) 1987-06-19

Family

ID=25421297

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979101487T Expired DE2967659D1 (en) 1978-05-15 1979-05-15 Process for preparing polyamide membrane filter media and product as well as process for rating the effectiveness of a membrane sheet as a filter

Country Status (16)

Country Link
US (1) US4340479B1 (de)
EP (1) EP0005536B2 (de)
JP (1) JPS5925602B2 (de)
AT (1) AT376580B (de)
AU (1) AU529368B2 (de)
BR (1) BR7903007A (de)
DE (1) DE2967659D1 (de)
DK (1) DK170416B1 (de)
ES (1) ES480577A1 (de)
FI (1) FI70421C (de)
IL (1) IL57354A (de)
MX (1) MX152562A (de)
NO (1) NO153836C (de)
NZ (1) NZ190436A (de)
PT (1) PT69611A (de)
ZA (1) ZA792326B (de)

Families Citing this family (327)

* Cited by examiner, † Cited by third party
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US4340479A (en) 1982-07-20
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