IL52271A - Method of preparing reverse osmosis membranes of high urea rejection properties - Google Patents

Method of preparing reverse osmosis membranes of high urea rejection properties

Info

Publication number
IL52271A
IL52271A IL52271A IL5227177A IL52271A IL 52271 A IL52271 A IL 52271A IL 52271 A IL52271 A IL 52271A IL 5227177 A IL5227177 A IL 5227177A IL 52271 A IL52271 A IL 52271A
Authority
IL
Israel
Prior art keywords
reverse osmosis
osmosis membranes
rejection properties
high urea
preparing reverse
Prior art date
Application number
IL52271A
Other languages
English (en)
Other versions
IL52271A0 (en
Original Assignee
Nasa
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 Nasa filed Critical Nasa
Publication of IL52271A0 publication Critical patent/IL52271A0/xx
Publication of IL52271A publication Critical patent/IL52271A/xx

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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B01D69/127—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction using electrical discharge or plasma-polymerisation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
IL52271A 1976-06-09 1977-06-07 Method of preparing reverse osmosis membranes of high urea rejection properties IL52271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/694,407 US4199448A (en) 1976-06-09 1976-06-09 Reverse osmosis membrane of high urea rejection properties

Publications (2)

Publication Number Publication Date
IL52271A0 IL52271A0 (en) 1977-08-31
IL52271A true IL52271A (en) 1979-10-31

Family

ID=24788686

Family Applications (1)

Application Number Title Priority Date Filing Date
IL52271A IL52271A (en) 1976-06-09 1977-06-07 Method of preparing reverse osmosis membranes of high urea rejection properties

Country Status (9)

Country Link
US (1) US4199448A (it)
JP (1) JPS52154871A (it)
DE (1) DE2726055A1 (it)
FR (1) FR2354343A1 (it)
GB (1) GB1550559A (it)
IL (1) IL52271A (it)
IT (1) IT1083016B (it)
MX (1) MX146803A (it)
NL (1) NL7706362A (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021422B1 (en) * 1979-06-25 1984-01-11 Kabushiki Kaisha Toyota Chuo Kenkyusho Gas separating member
US4347139A (en) * 1980-03-24 1982-08-31 Juichiro Ozawa Membrane for reverse osmosis and method of making the same
DE3217047A1 (de) * 1982-05-06 1983-11-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Membranen auf der basis von kieselsaeureheteropolykondensaten, verfahren zu ihrer herstellung und ihre verwendung
US4533369A (en) * 1982-05-28 1985-08-06 Sumitomo Electric Industries, Ltd. Gas-permselective composite membranes and process for the production thereof
JPS59154106A (ja) * 1983-02-23 1984-09-03 Toshinobu Higashimura 気体分離膜
GB2144344B (en) * 1983-08-02 1986-11-26 Shell Int Research Composite dense membrane
JPS6182806A (ja) * 1984-09-28 1986-04-26 Sumitomo Electric Ind Ltd 液体膜
US4784769A (en) * 1986-11-21 1988-11-15 The Standard Oil Company Plasma polymerized acetonitrile protective coatings and method of preparation therefor for ultrafiltration/microfiltration membranes
US5112457A (en) * 1990-07-23 1992-05-12 Case Western Reserve University Process for producing hydroxylated plasma-polymerized films and the use of the films for enhancing the compatiblity of biomedical implants
WO1993004763A1 (en) * 1991-09-11 1993-03-18 Pall Corporation Gas plasma treated porous medium and method of separation using same
DE4343114C2 (de) * 1993-12-17 1998-01-29 Geesthacht Gkss Forschung Verfahren zur Herstellung von Stofftrennmembranen
GB0721527D0 (en) * 2007-11-02 2007-12-12 P2I Ltd Filtration Membranes
US7775374B1 (en) 2007-11-15 2010-08-17 Barker Jack E Self powered water purification system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916534A (en) * 1955-01-15 1959-12-08 Knapsack Ag Process for carrying out endothermic reactions at high temperatures
BE549388A (it) * 1955-07-08 1900-01-01
GB1146550A (en) * 1966-07-26 1969-03-26 Standard Telephones Cables Ltd Polymeric product preparation method
US3600218A (en) * 1968-05-15 1971-08-17 Ibm Method for depositing insulating films of silicon nitride and aluminum nitride
US3662046A (en) * 1970-06-03 1972-05-09 Us Interior Method of making reverse osmosis membranes for desalination of water
FR2129996B1 (it) * 1971-03-25 1975-01-17 Centre Nat Etd Spatiales
US3847652A (en) * 1972-12-08 1974-11-12 Nasa Method of preparing water purification membranes
CA1070263A (en) * 1975-06-23 1980-01-22 National Aeronautics And Space Administration Preparation of dielectric coatings of variable dielectric constant by plasma polymerization
JPS5254688A (en) * 1975-10-30 1977-05-04 Sumitomo Chem Co Ltd Method of producing semipermeable memebrane

Also Published As

Publication number Publication date
FR2354343B1 (it) 1981-02-06
NL7706362A (nl) 1977-12-13
IT1083016B (it) 1985-05-21
DE2726055A1 (de) 1977-12-29
DE2726055C2 (it) 1988-05-19
JPS52154871A (en) 1977-12-22
IL52271A0 (en) 1977-08-31
US4199448A (en) 1980-04-22
GB1550559A (en) 1979-08-15
MX146803A (es) 1982-08-18
FR2354343A1 (fr) 1978-01-06

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