BR0007389A - Processos para separação de um ou mais gases de uma mistura de gases e para produção de uma membrana de poliimida porosa e membrana de poliimida para separação de gases - Google Patents

Processos para separação de um ou mais gases de uma mistura de gases e para produção de uma membrana de poliimida porosa e membrana de poliimida para separação de gases

Info

Publication number
BR0007389A
BR0007389A BR0007389-0A BR0007389A BR0007389A BR 0007389 A BR0007389 A BR 0007389A BR 0007389 A BR0007389 A BR 0007389A BR 0007389 A BR0007389 A BR 0007389A
Authority
BR
Brazil
Prior art keywords
polyimide membrane
processes
gases
gas separation
gas
Prior art date
Application number
BR0007389-0A
Other languages
English (en)
Inventor
Yong Ding
Benjamin Bikson
Joyce Katz Nelson
Original Assignee
Praxair Technology 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.)
Filing date
Publication date
Application filed by Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of BR0007389A publication Critical patent/BR0007389A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
    • 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
    • B01D69/1214—Chemically bonded layers, e.g. cross-linking
    • 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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
    • B01D71/64—Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors
    • B01D71/641—Polyamide-imides
    • 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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
    • B01D71/64—Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors
    • B01D71/643—Polyether-imides
    • 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
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

"PROCESSOS PARA SEPARAçãO DE UM OU MAIS GASES DE UMA MISTURA DE GASES E PARA PRODUçãO DE UMA MEMBRANA DE POLIIMIDA POROSA E MEMBRANA DE POLIIMIDA PARA SEPARAçãO DE GASES". E descrito um processo para preparar membranas de poliimida para separação de gases. O processo envolve preparar precursores de membrana de sal de ácido poliamídico que são convertidos em membranas de poliimida por tratamentos térmicos ou quimicos suaves. São ainda descritos processos de separação de gás que utilizam estas membranas de poliimida.
BR0007389-0A 1999-09-24 2000-09-22 Processos para separação de um ou mais gases de uma mistura de gases e para produção de uma membrana de poliimida porosa e membrana de poliimida para separação de gases BR0007389A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/404,724 US6497747B1 (en) 1999-09-24 1999-09-24 Production and use of improved polyimide separation membranes

Publications (1)

Publication Number Publication Date
BR0007389A true BR0007389A (pt) 2002-01-08

Family

ID=23600775

Family Applications (3)

Application Number Title Priority Date Filing Date
BR0007388-1A BR0007388A (pt) 1999-09-24 2000-09-22 Membrana de poliimida para separação de fluidos, polìmero de sal de ácido âmico de poliimida e processo para separar um ou mais gases de uma mistura de gases
BR0007389-0A BR0007389A (pt) 1999-09-24 2000-09-22 Processos para separação de um ou mais gases de uma mistura de gases e para produção de uma membrana de poliimida porosa e membrana de poliimida para separação de gases
BR0007390-3A BR0007390A (pt) 1999-09-24 2000-09-22 Artigo de poliimida e membrana de poliimida para separação de fluidos

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BR0007388-1A BR0007388A (pt) 1999-09-24 2000-09-22 Membrana de poliimida para separação de fluidos, polìmero de sal de ácido âmico de poliimida e processo para separar um ou mais gases de uma mistura de gases

Family Applications After (1)

Application Number Title Priority Date Filing Date
BR0007390-3A BR0007390A (pt) 1999-09-24 2000-09-22 Artigo de poliimida e membrana de poliimida para separação de fluidos

Country Status (5)

Country Link
US (2) US6497747B1 (pt)
EP (1) EP1086737B1 (pt)
CN (1) CN1293080A (pt)
BR (3) BR0007388A (pt)
DE (1) DE60031752T2 (pt)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1216092C (zh) * 1999-09-24 2005-08-24 液态空气-乔治克罗德方法研究监督及咨询股份有限公司 新的聚酰亚胺酰胺酸盐以及由此形成的聚酰亚胺膜
CN1278763C (zh) * 1999-09-24 2006-10-11 液态空气-乔治克罗德方法研究监督及咨询股份有限公司 聚酰亚胺气体分离膜
JP4490593B2 (ja) * 2001-02-27 2010-06-30 株式会社カネカ ポリイミドフィルムの製造方法
SG108269A1 (en) * 2001-08-15 2005-01-28 Inst Materials Research & Eng Chemical modification of polyimides
JP2003062422A (ja) * 2001-08-27 2003-03-04 Inst Of Physical & Chemical Res 気体分離膜及びその製造方法
US6740728B2 (en) * 2002-05-24 2004-05-25 Praxair Technology, Inc. Methods for the preparation of polyesters, poly(ester amide)s and poly(ester imide)s and uses of the materials obtained therefrom
US7025804B2 (en) * 2002-12-02 2006-04-11 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for separating hydrocarbon-containing gas mixtures using hydrocarbon-resistant membranes
US7018445B2 (en) * 2002-12-02 2006-03-28 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Polyimide blends for gas separation membranes
CA2435538A1 (en) * 2003-07-18 2005-01-18 Universite Laval Solvent resistant asymmetric integrally skinned membranes
EP1729882A1 (en) * 2004-02-05 2006-12-13 Millipore Corporation Porous adsorptive or chromatographic media
US7527673B2 (en) * 2004-03-26 2009-05-05 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Polyimide based mixed matrix composite membranes
US20050268782A1 (en) * 2004-03-26 2005-12-08 Kulkarni Sudhir S Novel polyimide based mixed matrix membranes
US20060049102A1 (en) * 2004-09-03 2006-03-09 Miller Jeffrey T Ionic polymer membranes
US7476636B2 (en) * 2004-12-03 2009-01-13 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploration Des Procedes Georges Claude Method of making mixed matrix membranes using electrostatically stabilized suspensions
US7754281B2 (en) * 2005-07-18 2010-07-13 Lawrence Livermore National Security, Llc Preparation of membranes using solvent-less vapor deposition followed by in-situ polymerization
US20070056901A1 (en) * 2005-09-14 2007-03-15 General Electric Company Solvent-resistant membranes from solvent-inert polyimides and polyketones
FR2904779B1 (fr) * 2006-08-09 2008-10-31 Inst Francais Du Petrole Procede de separation par membrane d'une olefine contenue dans un melange d'hydrocarbures
RU2335335C2 (ru) * 2006-09-19 2008-10-10 Государственный научно-исследовательский институт особо чистых биопрепаратов Ультрафильтрационная термо-, тепло- и химически стойкая полиимидная мембрана и способ ее получения
DE102006044635B4 (de) * 2006-09-19 2008-11-06 Gkss-Forschungszentrum Geesthacht Gmbh Gastrenn-Membran
JP4105214B1 (ja) * 2007-04-02 2008-06-25 日立マクセル株式会社 メッキ膜の形成方法並びにポリマー部材及びその製造方法
US9433922B2 (en) * 2007-08-14 2016-09-06 Emd Millipore Corporation Media for membrane ion exchange chromatography based on polymeric primary amines, sorption device containing that media, and chromatography scheme and purification method using the same
CN101412817B (zh) * 2007-10-19 2011-12-14 比亚迪股份有限公司 一种聚酰亚胺多孔膜的制备方法
US20090130738A1 (en) * 2007-11-19 2009-05-21 Mikhail Kozlov Media for membrane ion exchange chromatography
CN101676321B (zh) * 2008-09-18 2011-10-12 比亚迪股份有限公司 一种聚酰亚胺膜的制备方法
WO2011129769A1 (en) 2010-04-12 2011-10-20 National University Of Singapore Polyimide membranes and their preparation
US20110316181A1 (en) * 2010-06-25 2011-12-29 Uop Llc Process of making asymmetric polybenzoxazole membranes
WO2012162046A2 (en) * 2011-05-20 2012-11-29 Exxonmobil Research And Engineering Company Functionalized filters for heavy oil upgrading
US9127127B2 (en) 2012-10-03 2015-09-08 Sabic Global Technologies B.V. Polyetherimide compositions, methods of manufacture, and articles formed therefrom
JP6130183B2 (ja) 2013-03-26 2017-05-17 日東電工株式会社 通気部材
JP6130182B2 (ja) * 2013-03-26 2017-05-17 日東電工株式会社 通気部材
US10676571B2 (en) 2013-12-02 2020-06-09 Sabic Global Technologies B.V. Polyetherimides with improved melt stability
US20150183175A1 (en) * 2013-12-26 2015-07-02 American Air Liquide, Inc. Membranes made from 6fda, detda, and daba-based polymers
US9233344B1 (en) * 2014-09-29 2016-01-12 Uop Llc High selectivity polyimide membrane for natural gas upgrading and hydrogen purification
US9327248B1 (en) * 2014-12-04 2016-05-03 Uop Llc Copolyimide membranes with high permeability and selectivity for olefin/paraffin separations
GB201510648D0 (en) * 2015-06-17 2015-07-29 Fujifilm Mfg Europe Bv Composite membranes
US9962646B2 (en) 2016-01-04 2018-05-08 Saudi Arabian Oil Company Sour gas feed separations and helium recovery from natural gas using block co-polyimide membranes
US10913036B2 (en) 2017-05-31 2021-02-09 Saudi Arabian Oil Company Cardo-type co-polyimide membranes for sour gas feed separations from natural gas
DE102017119280A1 (de) * 2017-08-23 2019-02-28 Heraeus Noblelight Gmbh Verfahren und Vorrichtung zur Herstellung einer Polyimidschicht auf einem Substrat
CN108126538A (zh) * 2017-12-13 2018-06-08 常州大学 用于渗透汽化分离酰胺/水的pi复合膜及其制备方法
WO2019210159A1 (en) * 2018-04-26 2019-10-31 Texas A&M University In situ fabrication of metal-organic framework films and mixed-matrix membranes
CN110938305B (zh) * 2019-11-07 2022-05-27 中山大学 一种聚酰亚胺阻隔薄膜材料及其制备方法和应用
CN110756063A (zh) * 2019-11-12 2020-02-07 北京化工大学 一种聚酰亚胺中空纤维膜制备及其亚胺化方法
CN112961348B (zh) * 2021-03-17 2022-08-05 中国科学院宁波材料技术与工程研究所 一种高断裂伸长率的聚酰亚胺膜的制备方法
EP4378568A1 (en) * 2022-11-29 2024-06-05 Centre National de la Recherche Scientifique Porous polyimide polymer membrane with tensile strength

Family Cites Families (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4428977A (en) 1969-05-08 1984-01-31 General Electric Company Ammonium salt of partially emidized polyamide acid for aqueous coating composition
US4474632A (en) 1979-05-07 1984-10-02 Spees Charles L Method of forming a composite foam insulated jacket for a railroad tank car
US4290929A (en) 1979-07-13 1981-09-22 Essex Group, Inc. Aqueous solutions of polyesterimides and methods of making the same
JPS57170936A (en) * 1981-04-14 1982-10-21 Ube Ind Ltd Preparation of porous polyimide film
JPS57209608A (en) 1981-06-22 1982-12-23 Ube Ind Ltd Preparation of composite polyimide separation film
JPS57209607A (en) 1981-06-22 1982-12-23 Ube Ind Ltd Preparation of polyimide separation film
GB2104411B (en) * 1981-07-08 1985-02-20 Ube Industries Aromatic polyimide composite separating membrane
US4467001A (en) 1982-12-27 1984-08-21 Albany International Corp. Process and device for applying, drying and curing a coating on filaments
US4857079A (en) * 1984-04-02 1989-08-15 Toa Nenryo Kogyo K.K. Co-poly (imide ether) copolymer from diaminated polyalkyleneglycol
JP2625689B2 (ja) 1985-11-18 1997-07-02 淑夫 今井 単分子又は単分子累積膜の製造方法
US4705540A (en) * 1986-04-17 1987-11-10 E. I. Du Pont De Nemours And Company Polyimide gas separation membranes
US4717394A (en) * 1986-10-27 1988-01-05 E. I. Du Pont De Nemours And Company Polyimide gas separation membranes
US4717393A (en) * 1986-10-27 1988-01-05 E. I. Du Pont De Nemours And Company Polyimide gas separation membranes
US4840819A (en) 1987-04-08 1989-06-20 Union Carbide Corporation Method for preparing composite membranes for enhanced gas separation
US4756932A (en) 1987-06-11 1988-07-12 Air Products And Chemicals, Inc. Process for making highly permeable coated composite hollow fiber membranes
US5059220A (en) 1988-11-22 1991-10-22 Ceskoslovenska Akademie Ved Composite polymeric membranes for the separation of mixtures of gases and the method of preparation the same
US4952220A (en) * 1989-04-11 1990-08-28 Air Products And Chemicals, Inc. Membranes formed from unsaturated polyimides
US4932983A (en) * 1989-06-01 1990-06-12 E. I. Du Pont De Nemours And Company Copolyimide gas separation membranes derived from substituted methylene dianilines and unsubstituted diamines
US5074891A (en) * 1989-07-27 1991-12-24 Hoechst Celanese Corp. Method of gas separation and membranes therefor
US4988371A (en) * 1989-09-12 1991-01-29 The Dow Chemical Company Novel alicyclic polyimide gas separation membranes
US5034024A (en) 1989-10-10 1991-07-23 E. I. Du Pont De Nemours And Company Surfactant treatment of aromatic polyimide gas separation membranes
US5042992A (en) * 1990-03-21 1991-08-27 W. R. Grace & Co.-Conn. Gas separation material
US5009679A (en) * 1990-05-25 1991-04-23 Air Products And Chemicals, Inc. Membranes formed from rigid aromatic polyimide polymers
US5061298A (en) * 1990-06-13 1991-10-29 Air Products And Chemicals, Inc. Gas separating membranes formed from blends of polyimide polymers
US5042993A (en) * 1990-07-24 1991-08-27 Air Products And Chemicals, Inc. Gas separating membranes from polyimide polymers
US5178650A (en) * 1990-11-30 1993-01-12 E. I. Du Pont De Nemours And Company Polyimide gas separation membranes and process of using same
US5076916A (en) 1991-02-04 1991-12-31 Hoechst Celanese Corp. Device for separating fluid from a fiber following contact
US5181940A (en) 1991-08-01 1993-01-26 Union Carbide Industrial Gases Technology Corporation Hollow fiber membranes
US5234471A (en) * 1992-02-04 1993-08-10 E. I. Du Pont De Nemours And Company Polyimide gas separation membranes for carbon dioxide enrichment
US5248319A (en) * 1992-09-02 1993-09-28 E. I. Du Pont De Nemours And Company Gas separation membranes made from blends of aromatic polyamide, polymide or polyamide-imide polymers
US5232472A (en) * 1992-11-03 1993-08-03 E. I. Du Pont De Nemours And Company Polyimide and polyamide-imide gas separation membranes
US5320650A (en) * 1993-05-04 1994-06-14 E. I. Du Pont De Nemours And Company Fluorinated aromatic polyimide, polyamide and polyamide-imide gas separation membranes
US5322549A (en) * 1993-06-04 1994-06-21 E. I. Du Pont De Nemours And Company Polyimides and gas separation membranes prepared therefrom
US5356459A (en) 1993-06-30 1994-10-18 Praxair Technology, Inc. Production and use of improved composite fluid separation membranes
US5348569A (en) 1993-06-30 1994-09-20 Praxair Technology, Inc. Modified poly(phenylene oxide) based membranes for enhanced fluid separation
US5591250A (en) * 1993-08-09 1997-01-07 Gas Research Institute Material and process for separating carbon dioxide from methane
FR2710549B1 (fr) * 1993-09-27 1996-06-21 Inst Francais Du Petrole Membranes asymétriques de haute sélectivité pour la séparation des gaz et un procédé pour leur fabrication.
US5334697A (en) * 1993-10-04 1994-08-02 L'air Liquide, S.A. Polyimide gas separation membranes
US5719253A (en) 1994-10-07 1998-02-17 Unitika Ltd. Poly(amic acid) solution and polyimide film or polymide-coated material obtained therefrom
US5693227A (en) * 1994-11-17 1997-12-02 Ionics, Incorporated Catalyst mediated method of interfacial polymerization on a microporous support, and polymers, fibers, films and membranes made by such method
US5749943A (en) * 1995-02-27 1998-05-12 Petroleum Energy Center Method of selectively separating unsaturated hydrocarbon
DE69622088T2 (de) 1995-06-06 2003-03-06 Ube Industries, Ltd. Aromatische Polyimid und Gastrennung
US5817165A (en) * 1995-06-15 1998-10-06 Nitto Denko Corporation Fluorine-containing polyimide gas separation membrane and method of manufacturing the same
US5618334A (en) * 1995-06-30 1997-04-08 Praxair Technology, Inc. Sulfonated polyimide gas separation membranes
US5725633A (en) 1995-06-30 1998-03-10 Praxair Technology, Inc. Sulfonated polyimide gas separation membranes
US5725769A (en) * 1995-07-18 1998-03-10 Bend Research, Inc. Solvent-resistant microporous polymide membranes
JPH09122461A (ja) * 1995-10-31 1997-05-13 Nitto Denko Corp ポリイミド系半透膜
US5716430A (en) * 1996-05-03 1998-02-10 L'air Liquide Societe Anonyme Pour L'etude Et, L'exploitation Des Procedes Georges Claude Nitrated polyimide gas separation membranes
US5969087A (en) * 1997-04-04 1999-10-19 Nitto Denko Corporation Polyimide, a method for manufacturing the same, a gas separation membrane using the polyimide and a method for manufacturing the same
US5922203A (en) * 1997-10-07 1999-07-13 Hydranautics Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration
US5928410A (en) * 1997-12-09 1999-07-27 Texaco Inc. Supported gas separation membrane, process for its manufacture and use of the membrane in the separation of gases
US5922791A (en) * 1997-12-19 1999-07-13 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Polymer blend membranes with improved mechanical properties
CN1216092C (zh) * 1999-09-24 2005-08-24 液态空气-乔治克罗德方法研究监督及咨询股份有限公司 新的聚酰亚胺酰胺酸盐以及由此形成的聚酰亚胺膜
CN1278763C (zh) * 1999-09-24 2006-10-11 液态空气-乔治克罗德方法研究监督及咨询股份有限公司 聚酰亚胺气体分离膜

Also Published As

Publication number Publication date
CN1293080A (zh) 2001-05-02
EP1086737B1 (en) 2006-11-08
US6497747B1 (en) 2002-12-24
EP1086737A2 (en) 2001-03-28
BR0007388A (pt) 2002-01-02
BR0007390A (pt) 2002-01-02
DE60031752T2 (de) 2007-09-20
DE60031752D1 (de) 2006-12-21
EP1086737A3 (en) 2001-11-21
US6790263B1 (en) 2004-09-14

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