ATE204200T1 - Verfahren zur absorption von gas durch eine membran - Google Patents

Verfahren zur absorption von gas durch eine membran

Info

Publication number: ATE204200T1
Authority: AT; Austria
Prior art keywords: water; liquid phase; soluble; pct; membrane
Prior art date: 1994-03-25

Application number

AT95912513T

Other languages

English (en)

Inventor

Albert Edward Jansen

Paul Hubert Maria Feron

Original Assignee

Tno

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.)

1994-03-25

Filing date

1995-03-24

Publication date

2001-09-15

1994-03-25 Priority claimed from NL9400483A external-priority patent/NL9400483A/nl

1995-03-24 Application filed by Tno filed Critical Tno

2001-09-15 Application granted granted Critical

2001-09-15 Publication of ATE204200T1 publication Critical patent/ATE204200T1/de

Links

239000012528 membrane Substances 0.000 title abstract 5
238000000034 method Methods 0.000 title abstract 3
239000007791 liquid phase Substances 0.000 abstract 7
239000012071 phase Substances 0.000 abstract 3
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
230000002745 absorbent Effects 0.000 abstract 2
239000002250 absorbent Substances 0.000 abstract 2
238000010521 absorption reaction Methods 0.000 abstract 2
239000007864 aqueous solution Substances 0.000 abstract 2
150000003839 salts Chemical class 0.000 abstract 2
XOAAWQZATWQOTB-UHFFFAOYSA-N taurine Chemical compound NCCS(O)(=O)=O XOAAWQZATWQOTB-UHFFFAOYSA-N 0.000 abstract 2
239000004743 Polypropylene Substances 0.000 abstract 1
150000001413 amino acids Chemical class 0.000 abstract 1
229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
239000001569 carbon dioxide Substances 0.000 abstract 1
230000002209 hydrophobic effect Effects 0.000 abstract 1
239000000463 material Substances 0.000 abstract 1
125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 abstract 1
229920000573 polyethylene Polymers 0.000 abstract 1
229920001155 polypropylene Polymers 0.000 abstract 1
229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
229960003080 taurine Drugs 0.000 abstract 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1

Classifications

- 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
- B01D53/14—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 absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1468—Removing hydrogen sulfide
- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
- 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
- B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Analytical Chemistry (AREA)
General Chemical & Material Sciences (AREA)
Oil, Petroleum & Natural Gas (AREA)
Chemical Kinetics & Catalysis (AREA)
Gas Separation By Absorption (AREA)
Separation Using Semi-Permeable Membranes (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Treating Waste Gases (AREA)

AT95912513T 1994-03-25 1995-03-24 Verfahren zur absorption von gas durch eine membran ATE204200T1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
NL9400483A NL9400483A (nl)	1994-03-25	1994-03-25	Werkwijze voor gas/vloeistof-absorptie met behulp van holle vezelmembranen.
NL9401233A NL9401233A (nl)	1994-03-25	1994-07-27	Werkwijze voor membraangasabsorptie.
PCT/NL1995/000116 WO1995026225A1 (en)	1994-03-25	1995-03-24	Method for gas absorption across a membrane

Publications (1)

Publication Number	Publication Date
ATE204200T1 true ATE204200T1 (de)	2001-09-15

Family

ID=26647199

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT95912513T ATE204200T1 (de)	1994-03-25	1995-03-24	Verfahren zur absorption von gas durch eine membran

Country Status (13)

Country	Link
US (1)	US5749941A (de)
EP (1)	EP0751815B1 (de)
JP (1)	JP3828146B2 (de)
AT (1)	ATE204200T1 (de)
BR (1)	BR9507191A (de)
CA (1)	CA2186461C (de)
DE (1)	DE69522213T2 (de)
DK (1)	DK0751815T3 (de)
ES (1)	ES2160157T3 (de)
NL (1)	NL9401233A (de)
NO (1)	NO316947B1 (de)
PL (1)	PL316446A1 (de)
WO (1)	WO1995026225A1 (de)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1997002883A1 (en) *	1995-07-07	1997-01-30	Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno	Method for absorbing gaseous oxidisable or reducible constituents through a membrane
NO302454B1 (no) *	1996-07-31	1998-03-09	Kvaerner Asa	Fremgangsmåte til fjerning av karbondioksid fra gasser
DE19704508A1 (de) *	1996-09-27	1998-08-13	Gore W L & Ass Gmbh	Gasabsorption mit Membrankontaktoren
NL1006013C2 (nl) *	1997-05-09	1998-11-10	Tno	Inrichting en werkwijze voor het uitvoeren van membraan-gas/vloeistofabsorptie bij verhoogde druk.
US5928409A (en) *	1997-11-12	1999-07-27	New Jersey Institute Of Technology	Method and apparatus for gas removal by cyclic flow swing membrane permeation
SE515567C2 (sv) *	1999-10-27	2001-08-27	Esy Tech Ab	Vätske-vätskeextraktion och direkt överföring av analyten till gaskromatografiapparat
US6926829B2 (en)	2000-03-06	2005-08-09	Kvaerner Process Systems A.S.	Apparatus and method for separating fluids through a membrane
WO2002038250A1 (en)	2000-11-08	2002-05-16	Clearwater International, L.L.C.	Gas dehydration using membrane and potassium formate solution
DE10115345A1 (de) *	2001-03-28	2002-10-02	Merck Patent Gmbh	Verfahren zur Aufreinigung von korrosiv wirkenden Gasen
DE10116958A1 (de)	2001-04-05	2002-10-17	Uhde Gmbh	Verfahren zur NH¶3¶-Abscheidung aus Sythesegas sowie Vorrichtung zur Durchführung des Verfahrens
US6635103B2 (en) *	2001-07-20	2003-10-21	New Jersey Institute Of Technology	Membrane separation of carbon dioxide
WO2003080228A1 (en) *	2002-03-19	2003-10-02	Mykrolis Corporation	Hollow fiber membrane contact apparatus and process
US20030204724A1 (en)	2002-04-30	2003-10-30	Microsoft Corporation	Methods for remotely changing a communications password
NL1020560C2 (nl) *	2002-05-08	2003-11-11	Tno	Methode voor absorptie van zure gassen.
GB0228074D0 (en) *	2002-12-02	2003-01-08	Molecular Products Ltd	Carbon dioxide absorption
DE10338563A1 (de) *	2003-08-22	2005-03-17	Basf Ag	Verfahren zum Entsäuern eines Fluidstroms mittels Membraneinheiten aus inerten Gehäusen
KR100819653B1 (ko) *	2004-03-31	2008-04-07	다이킨 고교 가부시키가이샤	기체 정화 장치
CA2470807A1 (en) *	2004-05-28	2005-11-28	Alberta Research Council Inc.	Gas absorption column and a method of chemically treating an acid gas using such a gas absorption column
WO2006049610A1 (en) *	2004-10-29	2006-05-11	New Jersey Institute Of Technology	System and method for selective separation of gaseous mixtures using hollow fibers
US7318854B2 (en) *	2004-10-29	2008-01-15	New Jersey Institute Of Technology	System and method for selective separation of gaseous mixtures using hollow fibers
JP5244595B2 (ja) *	2005-08-09	2013-07-24	エクソンモービルリサーチアンドエンジニアリングカンパニー	酸性ガススクラビング法のためのヒンダードアミンおよび金属スルホネートまたはホスホネート構造の分子を含有する吸収性組成物
US20080067173A1 (en) *	2005-08-20	2008-03-20	Booty Donald J Sr	Container lid removal facilitator
US20070039962A1 (en) *	2005-08-20	2007-02-22	Booty Donald J Sr	Container lid removal facilitator
CA2861539C (en)	2006-05-18	2016-01-12	Norbert Asprion	Carbon dioxide absorbent requiring less regeneration energy
US7544340B2 (en) *	2007-03-13	2009-06-09	Gas Technology Institute	Method for creating a gas-liquid contact area
US8398743B2 (en) *	2007-05-08	2013-03-19	General Electric Company	Methods and systems for reducing carbon dioxide in combustion flue gases
WO2008145658A1 (de) *	2007-05-29	2008-12-04	Basf Se	Absorptionsmittel zum entfernen von sauren gasen, umfassend eine basische aminocarbonsäure
US7964170B2 (en) *	2007-10-19	2011-06-21	Fluegen, Inc.	Method and apparatus for the removal of carbon dioxide from a gas stream
US20100074828A1 (en) *	2008-01-28	2010-03-25	Fluegen, Inc.	Method and Apparatus for the Removal of Carbon Dioxide from a Gas Stream
US20100024651A1 (en) *	2008-07-30	2010-02-04	General Electric Company	Membrane contactor systems for gas-liquid contact
US8057579B2 (en) *	2008-11-10	2011-11-15	General Electric Company	Method, apparatus, and system for acid gas removal
TW201032887A (en) *	2009-01-13	2010-09-16	Saipem Spa	Process for the recovery of ammonia from a gaseous stream
US20100313758A1 (en) *	2009-06-12	2010-12-16	Co2Crc Technologies Pty Ltd.	Gas absorption membranes and the manufacture thereof
IT1395383B1 (it)	2009-09-09	2012-09-14	Saipem Spa	Metodo di separazione di ammoniaca e diossido di carbonio da soluzioni acquose
CN103108690B (zh)	2010-07-26	2017-02-15	株式会社新生能源研究	水蒸汽选择透过膜及使用该透过膜从混合气体中分离水蒸汽的方法
US20120247327A1 (en) *	2010-09-27	2012-10-04	Conocophillips Company	Hollow-fiber membrane contactors
WO2012078778A1 (en)	2010-12-09	2012-06-14	Research Triangle Institute	Integrated system for acid gas removal
KR101239380B1 (ko)	2010-12-15	2013-03-05	한국에너지기술연구원	복수의 아민기를 갖는 아미노산 및 금속 수화물을 포함하는 이산화탄소 포집용 흡수제
US9597632B2 (en)	2012-02-06	2017-03-21	Renaissance Energy Research Corporation	Selectively CO 2-permeable membrane, method for separating CO2 from mixed gas, and membrane separation equipment
DK2813279T3 (da) *	2012-02-06	2020-08-24	Renaissance Energy Res Corp	Selektiv co2-permeabel membran, fremgangsmåde til at separere co2 fra blandingsgas, og membranseparationsudstyr
CN104797326B (zh) *	2012-11-22	2017-03-22	联邦科学和工业研究组织	用于通过气体解吸进行热整合液体吸收剂再生的工艺和设备
DE102014118130A1 (de)	2014-12-08	2016-06-09	Technische Universität Berlin	Fluidverteileinrichtung für einen Gas-Flüssigkeits-Kontaktor, Gas-Flüssigkeits-Kontaktor und Verfahren zum Versetzen einer Flüssigkeit mit einem Gas
RU2626645C1 (ru) *	2016-10-14	2017-07-31	Публичное акционерное общество "Нефтяная компания "Роснефть"	Способ извлечения компонентов из природных и технологических газовых смесей пертракцией на нанопористых мембранах
US10946330B2 (en)	2018-02-06	2021-03-16	Saudi Arabian Oil Company	System and method for removing acid gas from a sour gas stream
CN114072220B (zh)	2019-05-17	2024-06-18	沙特阿拉伯石油公司	使用全氟化膜的硫化氢-二氧化碳膜分离方法
CN112742175A (zh) *	2019-10-30	2021-05-04	中国石油化工股份有限公司	一种膜吸收回收乙烯废气的方法及其系统和应用
EP4008686A1 (de)	2020-12-03	2022-06-08	Université catholique de Louvain	Kontinuierliches verfahren und system zur herstellung von natriumbicarbonatkristallen
US20230127859A1 (en) *	2021-10-22	2023-04-27	Aramco Services Company	Process for capturing co2 from a mobile source using an amino acid solvent

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1945163A (en) *	1932-05-09	1934-01-30	Shell Dev	Process for recovering the sulphur content of gases
US3910780A (en) *	1973-06-14	1975-10-07	Hydro Membronics Inc	Separative barrier for preferential transport of CO{HD 2 {B and apparatus employing same
US4089653A (en) *	1975-07-28	1978-05-16	General Electric Company	Apparatus for the separation of hydrogen sulfide from gas mixture including carbon dioxide
US4147754A (en) *	1975-07-28	1979-04-03	General Electric Company	System for selective removal of hydrogen sulfide from a mixture of gases
US4286279A (en)	1976-09-20	1981-08-25	Hutson Jearld L	Multilayer semiconductor switching devices
US4187086A (en) *	1977-06-15	1980-02-05	General Electric Company	Packaged membrane system and replenishment method
US4174374A (en) *	1977-06-22	1979-11-13	General Electric Company	Maintaining the separation efficiency of immobilized liquid membranes in gas separation methods and apparatus
JPS551816A (en) *	1978-06-15	1980-01-09	Mitsubishi Rayon Co Ltd	Vapor-liquid contactor
US4609383A (en) *	1984-09-24	1986-09-02	Aquanautics Corporation	Apparatus and method for extracting oxygen from fluids
US4750918A (en) *	1985-05-28	1988-06-14	The Trustees Of The Stevens Institute Of Technology	Selective-permeation gas-separation process and apparatus
US4995663A (en)	1986-07-22	1991-02-26	Robert C. Weaver	Slidable truck cover assembly
US4912051A (en) *	1986-08-04	1990-03-27	The United States Of America As Represented By The United States Department Of Energy	Permeation absorption sampler with multiple detection
US4834779A (en) *	1986-10-27	1989-05-30	Liquid Air Corporation	Process for membrane seperation of gas mixtures
US4954145A (en) *	1986-11-03	1990-09-04	Kingston Technologies	Filled membranes for separation of polar from non-polar gases
NL8702150A (nl) *	1987-09-09	1989-04-03	Tno	Werkwijze en membraan voor het door middel van damppermeatie verwijderen van waterdamp uit een gas-damp-mengsel.
US4900448A (en) *	1988-03-29	1990-02-13	Honeywell Inc.	Membrane dehumidification
NL9000783A (nl) *	1990-04-03	1991-11-01	Tno	Membraanscheidingsproces voor het door pervaporatie, damppermeatie of gasscheiding ontwateren van een gas- of damp- of vloeistofmengsel.
JPH03296413A (ja) *	1990-04-13	1991-12-27	Mitsubishi Heavy Ind Ltd	極性ガス分離装置
CA2040798A1 (en) *	1990-05-25	1991-11-26	Dean T. Tsou	Facilitated liquid membranes for olefin/paraffin gas separations and related process
US5271842A (en) *	1991-12-10	1993-12-21	Pall Corporation	Contaminant removal system and process
US5281254A (en) *	1992-05-22	1994-01-25	United Technologies Corporation	Continuous carbon dioxide and water removal system
NL9201226A (nl) *	1992-07-08	1994-02-01	Tno	Werkwijze en inrichting voor het reguleren van de vochtigheid van een gasstroom en het tegelijkertijd zuiveren daarvan van ongewenste zure of basische gassen.
US5445669A (en) *	1993-08-12	1995-08-29	Sumitomo Electric Industries, Ltd.	Membrane for the separation of carbon dioxide
CA2158236A1 (en) *	1994-09-14	1996-03-15	Dwayne T. Friesen	Organic and inorganic vapor permeation by countercurrent condensable sweep
US5611843A (en) *	1995-07-07	1997-03-18	Exxon Research And Engineering Company	Membranes comprising salts of aminoacids in hydrophilic polymers

1994
- 1994-07-27 NL NL9401233A patent/NL9401233A/nl not_active Application Discontinuation
1995
- 1995-03-24 BR BR9507191A patent/BR9507191A/pt not_active IP Right Cessation
- 1995-03-24 WO PCT/NL1995/000116 patent/WO1995026225A1/en not_active Ceased
- 1995-03-24 EP EP95912513A patent/EP0751815B1/de not_active Expired - Lifetime
- 1995-03-24 DK DK95912513T patent/DK0751815T3/da active
- 1995-03-24 DE DE69522213T patent/DE69522213T2/de not_active Expired - Lifetime
- 1995-03-24 PL PL95316446A patent/PL316446A1/xx unknown
- 1995-03-24 JP JP52510795A patent/JP3828146B2/ja not_active Expired - Lifetime
- 1995-03-24 US US08/716,159 patent/US5749941A/en not_active Expired - Lifetime
- 1995-03-24 AT AT95912513T patent/ATE204200T1/de not_active IP Right Cessation
- 1995-03-24 CA CA002186461A patent/CA2186461C/en not_active Expired - Fee Related
- 1995-03-24 ES ES95912513T patent/ES2160157T3/es not_active Expired - Lifetime
1996
- 1996-09-19 NO NO19963914A patent/NO316947B1/no not_active IP Right Cessation

Also Published As

Publication number	Publication date
WO1995026225A1 (en)	1995-10-05
JPH10500612A (ja)	1998-01-20
JP3828146B2 (ja)	2006-10-04
ES2160157T3 (es)	2001-11-01
DE69522213T2 (de)	2002-05-08
NL9401233A (nl)	1995-11-01
PL316446A1 (en)	1997-01-20
EP0751815B1 (de)	2001-08-16
NO316947B1 (no)	2004-07-05
CA2186461A1 (en)	1995-10-05
DK0751815T3 (da)	2001-10-08
CA2186461C (en)	2007-11-27
EP0751815A1 (de)	1997-01-08
NO963914D0 (no)	1996-09-19
US5749941A (en)	1998-05-12
NO963914L (no)	1996-11-19
DE69522213D1 (de)	2001-09-20
BR9507191A (pt)	1997-09-09

Legal Events

Date	Code	Title	Description
2002-02-15	RER	Ceased as to paragraph 5 lit. 3 law introducing patent treaties

Publication	Publication Date	Title
ATE204200T1 (de)	2001-09-15	Verfahren zur absorption von gas durch eine membran
KR950031920A (ko)	1995-12-20	1액형 피복 조성물로부터의 과잉 분무물의 재농축 방법
DE69312703D1 (de)	1997-09-04	Verfahren zum entschwefeln und entsalzen von fossilen brennstoffen
DE69726012D1 (de)	2003-12-11	Verfahren zur behandlung von gasen mittels eines ultra-armen amins
EP0361092A3 (de)	1991-07-24	Aminhaltige, grenzflächensynthetisierte Umkehrosmose-Membran und Verfahren zu ihrer Herstellung
DE3361559D1 (en)	1986-01-30	Process for the purification of exhaust gases
ATE222793T1 (de)	2002-09-15	Vorrichtung und verfahren zur gas-flüssigkeit mebran-absorption unter hohem druck
ATE548106T1 (de)	2012-03-15	Verwendung eines hydrophilisierungsmittels für hydrophoben porösen film und verfahren zur hydrophilisierung und inspektion eines hydrophoben porösen films damit
ATE174232T1 (de)	1998-12-15	Verfahren und vorrichtung zur entnahme eines lösungsproduktes aus einer flüssigkeit mittels einem dichtem gas und einer porösen membran
ATE128440T1 (de)	1995-10-15	Blasenfreier wasserstoffeintrag in wässrige flüssigkeiten.
NO944865L (no)	1995-02-03	Fremgangsmåte og apparat for tilsetning av en illeluktende bestanddel til en konsumgass
DE59907722D1 (de)	2003-12-18	Verfahren und vorrichtung zur katalytischen reduzierung von stickoxiden im abgas einer verbrennnungsanlage
DE59604175D1 (de)	2000-02-17	Verfahren zur herstellung von celluloselösungen in wasserhaltigen tertiären amin-n-oxiden
GB987406A (en)	1965-03-31	Method for purifying gases
DE59004325D1 (de)	1994-03-03	Verfahren zur Abtrennung von Wasser aus einem Wasser, CO2 und Amine enthaltenden Gemisch.
DE69904201D1 (de)	2003-01-09	Verfahren und vorrichtung zur membranfiltration von wasser
KR960017852A (ko)	1996-06-17	염기성 아미노산의 정제 방법
MX165343B (es)	1992-11-05	Tratamiento de membranas permeables
DE59708046D1 (de)	2002-10-02	Verfahren zur Herstellung von Celluloselösungen in wasserhaltigem Aminoxid
ES547303A0 (es)	1987-11-16	Procedimiento para la obtencion de una membrana compuesta semipermeable sobre un substrato microporoso, basada en un polimero reticulado.
BR9712754A (pt)	1999-10-19	Processo de tratamento de couro, copolìmero anfifìlico, uso e processo de obtenção do mesmo, couro, e, composição aquosa.
DE69812645D1 (de)	2003-04-30	Verfahren zur herstellung von kontrastmitteln
ATE171744T1 (de)	1998-10-15	Verfahren zur verminderung des gehalts an organischen lösungsmitteln in cellulose-reaktiven wasserabweisenden mitteln
DE69525948D1 (de)	2002-04-25	Verfahren zur wiedergewinnung von zitronensäure
KR900000141A (ko)	1990-01-30	배출가스 처리방법