ATE505260T1 - Halar-membrane - Google Patents

Halar-membrane

Info

Publication number
ATE505260T1
ATE505260T1 AT03739399T AT03739399T ATE505260T1 AT E505260 T1 ATE505260 T1 AT E505260T1 AT 03739399 T AT03739399 T AT 03739399T AT 03739399 T AT03739399 T AT 03739399T AT E505260 T1 ATE505260 T1 AT E505260T1
Authority
AT
Austria
Prior art keywords
agents
membranes
membrane
halar
solvents
Prior art date
Application number
AT03739399T
Other languages
English (en)
Inventor
Daniel Mullette
Heinz-Joachim Muller
Original Assignee
Siemens Water Tech 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 Siemens Water Tech Corp filed Critical Siemens Water Tech Corp
Application granted granted Critical
Publication of ATE505260T1 publication Critical patent/ATE505260T1/de

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
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • 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
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • 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
    • 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
    • B01D67/0018—Thermally induced processes [TIPS]
    • 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
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
    • 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
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/202—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising elimination of a solid or a liquid ingredient
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • B01D2323/15—Use of additives
    • B01D2323/18—Pore-control agents or pore formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/219—Specific solvent system
    • B01D2323/22—Specific non-solvents or non-solvent system
    • 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
    • B01D2325/0232—Dense layer on both outer sides of the membrane
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
AT03739399T 2002-02-12 2003-02-12 Halar-membrane ATE505260T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPS0466A AUPS046602A0 (en) 2002-02-12 2002-02-12 Halar membranes
PCT/AU2003/000179 WO2003068374A1 (en) 2002-02-12 2003-02-12 Halar membranes

Publications (1)

Publication Number Publication Date
ATE505260T1 true ATE505260T1 (de) 2011-04-15

Family

ID=3834067

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03739399T ATE505260T1 (de) 2002-02-12 2003-02-12 Halar-membrane

Country Status (12)

Country Link
EP (1) EP1474222B1 (de)
JP (1) JP4656839B2 (de)
KR (1) KR100991596B1 (de)
CN (1) CN100500272C (de)
AT (1) ATE505260T1 (de)
AU (1) AUPS046602A0 (de)
CA (2) CA2474625C (de)
DE (1) DE60336707D1 (de)
ES (1) ES2364041T3 (de)
MY (1) MY135608A (de)
NZ (1) NZ535133A (de)
WO (1) WO2003068374A1 (de)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4804599B2 (ja) 1996-12-20 2011-11-02 シーメンス・ウォーター・テクノロジーズ・コーポレイション 洗浄方法
AUPR421501A0 (en) 2001-04-04 2001-05-03 U.S. Filter Wastewater Group, Inc. Potting method
AUPR692401A0 (en) 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
AUPS300602A0 (en) 2002-06-18 2002-07-11 U.S. Filter Wastewater Group, Inc. Methods of minimising the effect of integrity loss in hollow fibre membrane modules
ATE542593T1 (de) 2002-10-10 2012-02-15 Siemens Industry Inc Membranfilter und rückspülverfahren dafür
AU2003903507A0 (en) 2003-07-08 2003-07-24 U. S. Filter Wastewater Group, Inc. Membrane post-treatment
NZ545206A (en) 2003-08-29 2009-03-31 Siemens Water Tech Corp Backwash
WO2005037917A1 (en) * 2003-10-20 2005-04-28 Zenon Environmental Inc. System and method for synthesizing a polymer membrane
US8808540B2 (en) 2003-11-14 2014-08-19 Evoqua Water Technologies Llc Module cleaning method
WO2005092799A1 (en) 2004-03-26 2005-10-06 U.S. Filter Wastewater Group, Inc. Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis
JP2008504122A (ja) * 2004-07-02 2008-02-14 シーメンス・ウォーター・テクノロジーズ・コーポレーション 気体輸送膜
AU2005259830C1 (en) * 2004-07-02 2011-07-21 Evoqua Water Technologies Llc Gas transfer membrane
JP2008505197A (ja) * 2004-07-05 2008-02-21 シーメンス・ウォーター・テクノロジーズ・コーポレーション 親水性膜
CN101043933B (zh) 2004-09-07 2012-09-05 西门子工业公司 反洗废液的减少
CA2579857A1 (en) 2004-09-14 2006-03-23 Siemens Water Technologies Corp. Membrane filtration module and cleaning process
CA2579894A1 (en) 2004-09-15 2006-03-23 Siemens Water Technologies Corp. Continuously variable aeration
JP2006088114A (ja) * 2004-09-27 2006-04-06 Asahi Kasei Chemicals Corp 親水性多孔膜
WO2006066350A1 (en) 2004-12-24 2006-06-29 Siemens Water Technologies Corp. Simple gas scouring method and apparatus
CA2591408C (en) 2004-12-24 2015-07-21 Siemens Water Technologies Corp. Cleaning in membrane filtration systems
ITMI20050474A1 (it) 2005-03-22 2006-09-23 Solvay Solexis Spa Polveri o manufatti aventi una idrofilicita'superficiale
JP2008539054A (ja) 2005-04-29 2008-11-13 シーメンス・ウォーター・テクノロジーズ・コーポレイション 膜フィルターのための化学洗浄
SG164499A1 (en) 2005-08-22 2010-09-29 Siemens Water Tech Corp An assembly for water filtration using a tube manifold to minimise backwash
US20090127212A1 (en) * 2005-09-27 2009-05-21 Heinz-Joachim Muller Chemical Cleaning Agent And Process For Cleaning Filtration Membranes
US8293098B2 (en) 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
US8318028B2 (en) 2007-04-02 2012-11-27 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
KR20170092708A (ko) 2007-05-29 2017-08-11 에보쿠아 워터 테크놀로지스 엘엘씨 수처리 시스템
CN102112213B (zh) 2008-07-24 2016-08-03 伊沃夸水处理技术有限责任公司 用于膜过滤模块的框架系统
WO2010108285A1 (en) 2009-03-26 2010-09-30 Asteia Technology Inc. Non-braided reinforced hollow fibre membrane
AU2010101488B4 (en) 2009-06-11 2013-05-02 Evoqua Water Technologies Llc Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
CN104607053B (zh) 2009-06-26 2017-04-12 Bl 科技公司 非编织、织物增强的中空纤维膜
JP5622850B2 (ja) * 2009-08-03 2014-11-12 ソルヴェイ・スペシャルティ・ポリマーズ・イタリー・エッセ・ピ・ア エチレン／クロロトリフルオロエチレンポリマー膜の製造方法
JP5531667B2 (ja) * 2010-02-22 2014-06-25 Ｎｏｋ株式会社 ポリフッ化ビニリデン多孔質膜の製造法
US9914097B2 (en) 2010-04-30 2018-03-13 Evoqua Water Technologies Llc Fluid flow distribution device
JP5636762B2 (ja) * 2010-06-22 2014-12-10 Nok株式会社 繊維強化多孔質膜の製造法
JP5636761B2 (ja) * 2010-06-22 2014-12-10 Nok株式会社 繊維強化ポリフッ化ビニリデン多孔質膜の製造法
US9221020B2 (en) 2010-09-15 2015-12-29 Bl Technologies, Inc. Method to make yarn-reinforced hollow fiber membranes around a soluble core
CN103118766B (zh) 2010-09-24 2016-04-13 伊沃夸水处理技术有限责任公司 膜过滤系统的流体控制歧管
US8529814B2 (en) 2010-12-15 2013-09-10 General Electric Company Supported hollow fiber membrane
CN109836735A (zh) 2011-06-23 2019-06-04 索尔维特殊聚合物意大利有限公司 用于制造多孔膜的方法
CA2850522C (en) 2011-09-30 2021-03-16 Evoqua Water Technologies Llc Shut-off valve for isolation of hollow fiber membrane filtration module
SG11201401089PA (en) 2011-09-30 2014-04-28 Evoqua Water Technologies Llc Improved manifold arrangement
KR101284405B1 (ko) * 2011-10-28 2013-07-09 웅진케미칼 주식회사 다공성 금속 중공사 여과재의 제조방법
US9321014B2 (en) 2011-12-16 2016-04-26 Bl Technologies, Inc. Hollow fiber membrane with compatible reinforcements
US9643129B2 (en) 2011-12-22 2017-05-09 Bl Technologies, Inc. Non-braided, textile-reinforced hollow fiber membrane
US9022229B2 (en) 2012-03-09 2015-05-05 General Electric Company Composite membrane with compatible support filaments
US8999454B2 (en) 2012-03-22 2015-04-07 General Electric Company Device and process for producing a reinforced hollow fibre membrane
KR101414193B1 (ko) * 2012-04-30 2014-07-02 도레이케미칼 주식회사 폴리에틸렌클로로트리플루오로에틸렌 (ｅｃｔｆｅ) 중공사막의 제조방법
KR102108593B1 (ko) 2012-06-28 2020-05-29 에보쿠아 워터 테크놀로지스 엘엘씨 포팅 방법
US9227362B2 (en) 2012-08-23 2016-01-05 General Electric Company Braid welding
EP2895257A1 (de) 2012-09-14 2015-07-22 Evoqua Water Technologies LLC Polymermischung für membranen
DE112013004713T5 (de) 2012-09-26 2015-07-23 Evoqua Water Technologies Llc Membransicherungsvorrichtung
US9962865B2 (en) 2012-09-26 2018-05-08 Evoqua Water Technologies Llc Membrane potting methods
EP2900356A1 (de) 2012-09-27 2015-08-05 Evoqua Water Technologies LLC Gaswäscher für tauchmembranen
US10427102B2 (en) 2013-10-02 2019-10-01 Evoqua Water Technologies Llc Method and device for repairing a membrane filtration module
JP6510505B2 (ja) * 2013-10-11 2019-05-08 ソルベイ スペシャルティ ポリマーズ イタリー エス．ピー．エー． フルオロポリマー膜の製造方法
EP3322511B1 (de) 2015-07-14 2022-09-07 Rohm & Haas Electronic Materials Singapore Pte. Ltd Belüftungsvorrichtung für filtrationssystem
CN108778473A (zh) * 2016-03-09 2018-11-09 旭化成株式会社 多孔性中空纤维膜及其制造方法、以及过滤方法
US11110402B2 (en) 2017-09-01 2021-09-07 Asahi Kasei Kabushik Kasha Porous hollow fiber membrane, method for producing porous hollow fiber membrane and filtration method
JP7185448B2 (ja) * 2017-09-01 2022-12-07 旭化成株式会社 多孔性中空糸膜及びその製造方法、並びにろ過方法
JP7219032B2 (ja) * 2017-09-01 2023-02-07 旭化成株式会社 分離層を含む多孔性中空糸膜の製造方法、多孔性中空糸膜、およびろ過方法
US11534723B2 (en) * 2017-09-07 2022-12-27 Asahi Kasei Kabushiki Kaisha Method of filtration using porous membranes
CN110141981A (zh) * 2019-05-28 2019-08-20 迈博瑞生物膜技术（南通）有限公司 一种亲水性乙烯-三氟氯乙烯共聚物中空膜的制备方法
CN110141979A (zh) * 2019-05-28 2019-08-20 迈博瑞生物膜技术（南通）有限公司 一种乙烯-三氟氯乙烯共聚物中空纤维多孔膜的制备方法
CN117531377B (zh) * 2024-01-09 2024-04-26 赛普(杭州)过滤科技有限公司 一种非对称高通量除病毒纤维素滤膜及其制备方法和应用

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732357A (en) * 1949-11-25 1956-01-24 Suspensions of polymeric chlorotri-
US4247498A (en) 1976-08-30 1981-01-27 Akzona Incorporated Methods for making microporous products
GB2168981B (en) * 1984-12-27 1988-07-06 Asahi Chemical Ind Porous fluorine resin membrane and process for preparation thereof
JPS61233026A (ja) * 1985-04-09 1986-10-17 Asahi Chem Ind Co Ltd 多孔膜の製造方法
US4670341A (en) * 1985-05-17 1987-06-02 W. R. Grace & Co. Hollow fiber
DE3829766A1 (de) * 1988-09-01 1990-03-22 Akzo Gmbh Verfahren zur herstellung von membranen
JPH04187224A (ja) * 1990-11-20 1992-07-03 Mitsubishi Rayon Co Ltd フッ素系多孔質中空糸膜の製法
JPH06142468A (ja) * 1992-11-11 1994-05-24 Dainippon Ink & Chem Inc 細孔を有する表面親水性膜の製造方法
PL173020B1 (pl) * 1992-11-16 1998-01-30 Althin Medical Inc Membrana półprzepuszczalna i sposób wytwarzania membrany półprzepuszczalnej
US6096213A (en) * 1998-08-14 2000-08-01 3M Innovative Properties Company Puncture-resistant polyolefin membranes
JP2001087636A (ja) * 1999-09-21 2001-04-03 Asahi Kasei Corp ポリエチレン製中空糸状多孔膜の製法
ITMI20010421A1 (it) * 2001-03-01 2002-09-02 Ausimont Spa Membrane porose semipermeabili di fluoropolimeri semicristallini

Also Published As

Publication number Publication date
NZ535133A (en) 2006-06-30
CA2474625A1 (en) 2003-08-21
CN1638851A (zh) 2005-07-13
CA2733826A1 (en) 2003-08-21
CA2733826C (en) 2014-07-22
WO2003068374A1 (en) 2003-08-21
ES2364041T3 (es) 2011-08-23
EP1474222B1 (de) 2011-04-13
AUPS046602A0 (en) 2002-03-07
JP2005516764A (ja) 2005-06-09
CN100500272C (zh) 2009-06-17
JP4656839B2 (ja) 2011-03-23
CA2474625C (en) 2014-03-18
KR100991596B1 (ko) 2010-11-04
MY135608A (en) 2008-05-30
EP1474222A1 (de) 2004-11-10
EP1474222A4 (de) 2005-02-16
DE60336707D1 (de) 2011-05-26
KR20040094683A (ko) 2004-11-10

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