BE788441A - Polyvinylacetal membrane - for ultra-filtration dialysis osmosis etc - Google Patents

Polyvinylacetal membrane - for ultra-filtration dialysis osmosis etc

Info

Publication number
BE788441A
BE788441A BE788441DA BE788441A BE 788441 A BE788441 A BE 788441A BE 788441D A BE788441D A BE 788441DA BE 788441 A BE788441 A BE 788441A
Authority
BE
Belgium
Prior art keywords
polyvinylacetal
ultra
membrane
filtration dialysis
osmosis etc
Prior art date
Application number
Other languages
French (fr)
Inventor
D Gong-Jong Wang
Original Assignee
Aqua Chem Inc
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.)
Publication date
Publication of BE788441A publication Critical patent/BE788441A/en

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
    • B01D71/06—Organic material
    • B01D71/38—Polyalkenylalcohols; Polyalkenylesters; Polyalkenylethers; Polyalkenylaldehydes; Polyalkenylketones; Polyalkenylacetals; Polyalkenylketals
    • B01D71/381—Polyvinylalcohol
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/08—Thickening liquid suspensions by filtration
    • B01D17/085—Thickening liquid suspensions by filtration with 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
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/24—Dialysis ; Membrane extraction
    • B01D61/28—Apparatus therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Membrance for use in various separation processes consists of polyvinylacetal. The membranes are easy to produce (by casting a suitable soln. of the polymer), tough, resistant to acids and bases, and have readily controllable pore size. A suitable casting compsn. comprises 10-20 wt.% polyvinylformal and 90-80 wt.% DMSO.
BE788441D 1971-09-07 Polyvinylacetal membrane - for ultra-filtration dialysis osmosis etc BE788441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17840771A 1971-09-07 1971-09-07

Publications (1)

Publication Number Publication Date
BE788441A true BE788441A (en) 1973-03-06

Family

ID=22652440

Family Applications (1)

Application Number Title Priority Date Filing Date
BE788441D BE788441A (en) 1971-09-07 Polyvinylacetal membrane - for ultra-filtration dialysis osmosis etc

Country Status (4)

Country Link
JP (1) JPS4836080A (en)
BE (1) BE788441A (en)
IT (1) IT967197B (en)
SE (1) SE393752B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103085A (en) * 1975-03-07 1976-09-11 Unitika Ltd HORIBINIRUASETA ARUGYAKUSHINTOMAKUNO SEIZOHOHO

Also Published As

Publication number Publication date
SE393752B (en) 1977-05-23
JPS4836080A (en) 1973-05-28
IT967197B (en) 1974-02-28

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