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BR8907163A - Processo para tratar uma membrana de policarbonato - Google Patents

Processo para tratar uma membrana de policarbonato

Info

Publication number
BR8907163A
BR8907163A BR898907163A BR8907163A BR8907163A BR 8907163 A BR8907163 A BR 8907163A BR 898907163 A BR898907163 A BR 898907163A BR 8907163 A BR8907163 A BR 8907163A BR 8907163 A BR8907163 A BR 8907163A
Authority
BR
Brazil
Prior art keywords
treating
polycarbonate membrane
polycarbonate
membrane
Prior art date
Application number
BR898907163A
Other languages
English (en)
Inventor
Wudneh Admassu
John A Jensvold
Daniel O Clark
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of BR8907163A publication Critical patent/BR8907163A/pt

Links

Classifications

    • 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
    • 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
    • B01D67/0083—Thermal after-treatment
    • 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
    • B01D67/0095—Drying
    • 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
    • B01D67/0097—Storing or preservation
    • 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
    • B01D71/50—Polycarbonates
    • F26B21/40—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polyesters Or Polycarbonates (AREA)
BR898907163A 1988-11-09 1989-11-09 Processo para tratar uma membrana de policarbonato BR8907163A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/269,922 US4900334A (en) 1988-11-09 1988-11-09 Process for treating a liquid-wet polycarbonate membrane to improve its gas separation properties
PCT/US1989/005151 WO1990005016A1 (en) 1988-11-09 1989-11-09 Process for treating a liquid-wet polycarbonate membrane to improve its gas separation properties

Publications (1)

Publication Number Publication Date
BR8907163A true BR8907163A (pt) 1991-02-26

Family

ID=23029177

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898907163A BR8907163A (pt) 1988-11-09 1989-11-09 Processo para tratar uma membrana de policarbonato

Country Status (10)

Country Link
US (1) US4900334A (pt)
EP (1) EP0368272A1 (pt)
JP (1) JPH03502181A (pt)
KR (1) KR900701380A (pt)
CN (1) CN1042847A (pt)
AU (1) AU628893B2 (pt)
BR (1) BR8907163A (pt)
CA (1) CA2002459A1 (pt)
IL (1) IL92235A0 (pt)
WO (1) WO1990005016A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163977A (en) * 1991-08-22 1992-11-17 The Dow Chemical Company Semi-permeable gas separation membranes containing non-ionic surfactants possessing improved resistance to thermal compaction and processes for making and using the same
US5141530A (en) * 1991-08-22 1992-08-25 The Dow Chemical Company Polycarbonate, polyester, and polyestercarbonate semi-permeable gas separation membranes possessing improved gas selectivity and recovery, and processes for making and using the same
US5152811A (en) * 1991-12-20 1992-10-06 The Dow Chemical Company Meta, para-bisphenol based polymer gas separation membranes
US5409524A (en) * 1992-12-01 1995-04-25 The Dow Chemical Company Membranes having improved selectivity and recovery, and process for making same
US5352273A (en) * 1993-04-14 1994-10-04 E. I. Du Pont De Nemours And Company Alkyl substituted aromatic polyester gas separation membranes
US5598874A (en) * 1995-08-11 1997-02-04 Mg Generon, Inc. Loom processing of hollow fiber membranes
US7445939B2 (en) * 2004-02-27 2008-11-04 Varian, Inc. Stable liquid membranes for liquid phase microextraction
US8317899B2 (en) * 2009-11-10 2012-11-27 Generon Igs, Inc. Shipboard hybrid system for making dry, oil-free, utility air and inert gas
US10898865B2 (en) * 2013-01-31 2021-01-26 American University In Cairo (AUC) Polymer-carbon nanotube nanocomposite porous membranes
CN110412223B (zh) * 2019-08-28 2022-03-11 西安石油大学 一种基于阶跃脉冲的水气分离设备性能测定装置及方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941675A (en) * 1971-09-28 1976-03-02 Friedrich Uhde Gmbh Bipolar multiple electrolytic cell comprising a diaphragm and electrode for same
US3822202A (en) * 1972-07-20 1974-07-02 Du Pont Heat treatment of membranes of selected polyimides,polyesters and polyamides
US3842515A (en) * 1972-11-20 1974-10-22 Helium A Ltd Method for drying water-wet membranes
FR2265454A2 (en) * 1974-03-26 1975-10-24 Uhde Gmbh Friedrich Polyether-polycarbonate block copolymer films - esp for haemodialysis made by casting from soln
GB1507921A (en) * 1974-04-01 1978-04-19 Gen Electric Membranes
US4080744A (en) * 1976-06-22 1978-03-28 E. I. Du Pont De Nemours And Company Gas separation membrane drying with water replacement liquid
US4080743A (en) * 1976-06-22 1978-03-28 E. I. Du Pont De Nemours And Company Membrane drying process
US4230463A (en) * 1977-09-13 1980-10-28 Monsanto Company Multicomponent membranes for gas separations
US4157960A (en) * 1977-11-30 1979-06-12 Monsanto Company Method for enhancing membrane separation
IL59581A0 (en) * 1979-03-28 1980-06-30 Monsanto Co Methods for preparing anisotropic membranes and membranes prepared therefrom
US4430807A (en) * 1982-05-17 1984-02-14 The Dow Chemical Company Process for drying water-wet membranes
US4527999A (en) * 1984-03-23 1985-07-09 Abcor, Inc. Separation membrane and method of preparing and using same
JPS61133118A (ja) * 1984-11-30 1986-06-20 Ube Ind Ltd ガス分離ポリイミド膜
AU594755B2 (en) * 1986-04-14 1990-03-15 Dow Chemical Company, The Semi-permeable membranes comprising predominantly of polycarbonates derived from tetrahalbisphenols
US4764320A (en) * 1987-06-12 1988-08-16 The Dow Chemical Company Method for preparing semipermeable membrane compositions
US4772392A (en) * 1987-11-06 1988-09-20 The Dow Chemical Company Process for preparing POWADIR membranes from tetrahalobisphenol A polycarbonates

Also Published As

Publication number Publication date
EP0368272A1 (en) 1990-05-16
AU4626289A (en) 1990-05-28
KR900701380A (ko) 1990-12-01
JPH03502181A (ja) 1991-05-23
CN1042847A (zh) 1990-06-13
AU628893B2 (en) 1992-09-24
CA2002459A1 (en) 1990-05-09
WO1990005016A1 (en) 1990-05-17
IL92235A0 (en) 1990-07-26
US4900334A (en) 1990-02-13

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Legal Events

Date Code Title Description
FD3 Appl. lapsed due to non-payment of renewal fee