JPS618112A - ガスからｃｏ↓２及び／又はｈ↓２ｓを除去する方法 - Google Patents

ガスからｃｏ↓２及び／又はｈ↓２ｓを除去する方法

Info

Publication number
JPS618112A
JPS618112A JP60044991A JP4499185A JPS618112A JP S618112 A JPS618112 A JP S618112A JP 60044991 A JP60044991 A JP 60044991A JP 4499185 A JP4499185 A JP 4499185A JP S618112 A JPS618112 A JP S618112A
Authority
JP
Japan
Prior art keywords
absorption
stage
gas
absorption liquid
fed
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP60044991A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0421521B2 (enExample
Inventor
エクハルト、ヴエルナー
クラウス、フオルカマー
ヴエルナー、ヘフナー
ウルリヒ、ヴアーグナー
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of JPS618112A publication Critical patent/JPS618112A/ja
Publication of JPH0421521B2 publication Critical patent/JPH0421521B2/ja
Granted legal-status Critical Current

Links

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
    • B01D53/1456—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
    • B01D53/1406—Multiple stage absorption
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
    • C01B3/50—Separation of hydrogen or hydrogen-containing gases from gaseous mixtures, e.g. purification
    • C01B3/52—Separation of hydrogen or hydrogen-containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
    • C10K1/14—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic
    • C10K1/143—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic containing amino groups
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0415—Purification by absorption in liquids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/0495—Composition of the impurity the impurity being water
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Industrial Gases (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Silicon Compounds (AREA)
JP60044991A 1984-03-10 1985-03-08 ガスからｃｏ↓２及び／又はｈ↓２ｓを除去する方法 Granted JPS618112A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3408851.2 1984-03-10
DE19843408851 DE3408851A1 (de) 1984-03-10 1984-03-10 Verfahren zum entfernen von co(pfeil abwaerts)2(pfeil abwaerts) und/oder h(pfeil abwaerts)2(pfeil abwaerts)s aus gasen

Publications (2)

Publication Number Publication Date
JPS618112A true JPS618112A (ja) 1986-01-14
JPH0421521B2 JPH0421521B2 (enExample) 1992-04-10

Family

ID=6230131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60044991A Granted JPS618112A (ja) 1984-03-10 1985-03-08 ガスからｃｏ↓２及び／又はｈ↓２ｓを除去する方法

Country Status (7)

Country Link
US (1) US4997630A (enExample)
EP (1) EP0159495B1 (enExample)
JP (1) JPS618112A (enExample)
AT (1) ATE54060T1 (enExample)
CA (1) CA1291321C (enExample)
DE (2) DE3408851A1 (enExample)
NO (1) NO163172C (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002519171A (ja) * 1998-06-29 2002-07-02 ビーエーエスエフ アクチェンゲゼルシャフト ガスからの酸性ガス成分の除去法
JP2003535209A (ja) * 2000-06-09 2003-11-25 ビーエーエスエフ アクチェンゲゼルシャフト 炭化水素の流体流の脱酸法
WO2004076031A1 (ja) * 2003-02-04 2004-09-10 Nippon Steel Corporation 二酸化炭素の分離回収方法および装置
JP2012532745A (ja) * 2009-07-08 2012-12-20 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 硫黄回収プラントのテールガス処理方法
JP2017533082A (ja) * 2014-08-25 2017-11-09 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 流体のストリームからの硫化水素および二酸化炭素の除去

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NL8600030A (nl) * 1986-01-09 1987-08-03 Shell Int Research Verwijderen van zure gassen uit een gasmengsel.
CA1340632C (fr) * 1988-05-24 1999-07-06 Jean-Louis Peytavy Liquide absorbant des gaz acides renfermant une composante alcanolamine tertiaire et un activateur d'absorption du co2 et son application a la desacidification de gaz contenant co2 et eventuellement d'autres gaz acides
US5366709A (en) * 1990-01-18 1994-11-22 Societe Nationale Elf Aquitaine Production Liquid absorbent for acidic gases and process of deacidification of a gas
FR2631949B1 (fr) * 1988-05-27 1990-09-14 Inst Francais Du Petrole Procede de production d'hydrogene de haute purete par reformage catalytique du methanol
US5190640A (en) * 1991-09-18 1993-03-02 Baker Hughes Incorporated Treatment of oils using aminocarbinols
US5603908A (en) * 1992-09-16 1997-02-18 The Kansai Electric Power Co., Inc. Process for removing carbon dioxide from combustion gases
JP2882950B2 (ja) * 1992-09-16 1999-04-19 関西電力株式会社 燃焼排ガス中の二酸化炭素を除去する方法
US5556606A (en) * 1994-10-07 1996-09-17 Khanmamedov; Tofik K. Method and apparatus for controlling the hydrogen sulfide concentration in the acid gas feedstock of a sulfur recovery unit
US5861051A (en) * 1996-03-06 1999-01-19 Huntsman Petrochemical Corporation Process for removing carbon dioxide from gas mixture
CA2177449C (en) * 1996-05-20 2003-04-29 Barry Steve Marjanovich Process for treating a gas stream to selectively separate acid gases therefrom
US6165432A (en) * 1998-09-30 2000-12-26 The Dow Chemical Company Composition and process for removal of acid gases
US6337059B1 (en) * 1999-05-03 2002-01-08 Union Carbide Chemicals & Plastics Technology Corporation Absorbent compositions for the removal of acid gases from gas streams
US6531103B1 (en) 2000-03-09 2003-03-11 Union Carbide Chemicals And Plastics Technology Corporation Process for removing sulfur compounds from gas and liquid hydrocarbon streams
FR2820430B1 (fr) * 2001-02-02 2003-10-31 Inst Francais Du Petrole Procede de desacidification d'un gaz avec lavage des hydrocarbures desorbes lors de la regeneration du solvant
DE10135370A1 (de) 2001-07-20 2003-01-30 Basf Ag Verfahren zur Entfernung saurer Gase aus einem Gasstrom
NZ533691A (en) * 2002-01-14 2006-11-30 Shell Int Research Process for removing carbon dioxide and optionally hydrogen sulphide and/or carbonyl sulphide from gas mixtures
US6884282B2 (en) * 2002-05-13 2005-04-26 David K. Stevens Method and system for increasing the absorption selectivity of H2S from a gas containing CO2 and H2S
FR2848218B1 (fr) * 2002-12-10 2005-01-28 Inst Francais Du Petrole Procede de desacidification et de deshydratation d'un gaz naturel
DE10306254A1 (de) 2003-02-14 2004-08-26 Basf Ag Absorptionsmittel und Verfahren zur Entfernung saurer Gase aus Fluiden
ITBG20030014A1 (it) * 2003-02-19 2004-08-20 Garo Dr Ing Roberto Gabbioneta Sp A Processo e apparecchiatura per il trattamento di gas di raffineria.
DE10313438A1 (de) * 2003-03-26 2004-11-04 Uhde Gmbh Verfahren zur selektiven Entfernung von Schwefelwasserstoff und CO2 aus Rohgas
EP1633458A2 (de) * 2003-06-05 2006-03-15 Basf Aktiengesellschaft Verfahren zum entsäuern eines fluidstroms mittels einer inerten waschkolonne und vorrichtung hierzu
DE102005033837B4 (de) 2005-07-20 2019-02-28 Basf Se Verfahren zum Entfernen von sauren Gasen und Ammoniak aus einem Fluidstrom
EP1911734A1 (en) * 2006-10-06 2008-04-16 Bp Oil International Limited Process for hydrogenation of carboxylic acids and derivatives to hydrocarbons
WO2008073935A1 (en) * 2006-12-13 2008-06-19 Dow Global Technologies Inc. Method and composition for removal of mercaptans from gas streams
US8597412B2 (en) * 2008-02-22 2013-12-03 Mitsubishi Heavy Industries, Ltd. CO2 recovery apparatus and CO2 recovery method
ES2428236T3 (es) 2009-01-29 2013-11-06 Basf Se Agente absorbente que contiene aminoácido y promotor ácido para la eliminación de gases ácidos
US20100219061A1 (en) * 2009-03-02 2010-09-02 Saudi Arabian Oil Company Enhancement of acid gas enrichment process
US8221712B2 (en) 2009-05-12 2012-07-17 Basf Se Absorption medium for the selective removal of hydrogen sulfide from fluid streams
DE102010009601A1 (de) 2010-02-26 2011-09-15 Uhde Gmbh Entfernung von wärmestabilen Salzen aus organischen Lösungsmitteln
NO20100797A1 (no) 2010-06-02 2011-12-05 Statoil Petroleum As CO2 desorpsjon uten stripper
JP5591075B2 (ja) 2010-11-24 2014-09-17 三菱重工業株式会社 Ｃｏ２及びｈ２ｓを含むガスの回収システム及び方法
US9155989B2 (en) 2011-03-16 2015-10-13 Aker Process Systems Ag Method and system for gas purification with first direct absorption step and second absorption step by means of membrane contactor
WO2013079116A1 (en) * 2011-12-01 2013-06-06 Statoil Petroleum As Process with continuously stirred tank reactor absorber and flash tank stripper
WO2013136310A1 (en) 2012-03-16 2013-09-19 Aker Process Systems As Hydrocarbon gas treatment
BR112014029375B1 (pt) 2012-06-29 2021-01-12 Dow Global Technologies Llc processo para remover sulfeto de hidrogênio a partir de uma mistura gasosa
CA2870164C (en) 2012-06-29 2020-09-01 Dow Global Technologies Llc Aqueous alkanolamine solution and process for the removal of h2s from gaseous mixtures
DE102012021478A1 (de) * 2012-11-05 2014-05-08 Thyssenkrupp Uhde Gmbh Verfahren und Vorrichtung zur Entfernung von absorbierbaren Gasen aus unter Druck befindlichen, mit absorbierbaren Gasen verunreinigten Industriegasen ohne Zuführung von Kühlenergie
RU2016111276A (ru) 2013-08-29 2017-10-04 ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи Растворы для обессеривания газа, содержащие четвертичные аммониевые соли
JP2016536389A (ja) 2013-10-30 2016-11-24 ダウ グローバル テクノロジーズ エルエルシー 選択的ｈ２ｓ除去のための混成溶媒配合物
EP3062912A1 (en) 2013-10-30 2016-09-07 Dow Global Technologies LLC Hybrid solvent formulations for total organic sulfur removal and total acidic gas removal
EA033527B1 (ru) 2014-08-25 2019-10-31 Basf Se Удаление диоксида углерода из потока текучей среды
WO2016030277A1 (de) 2014-08-25 2016-03-03 Basf Se Diamin mit tert-alkylamino- und primärer aminogruppe zur verwendung in der gaswäsche
EP2990090A1 (de) 2014-08-25 2016-03-02 Basf Se Absorptionsmittel zur selektiven Entfernung von Schwefelwasserstoff aus einem Fluidstrom
CN106794415B (zh) 2014-10-10 2021-03-16 陶氏环球技术有限责任公司 使用2-二甲基氨基-2-羟甲基-1,3-丙二醇的水溶液从气体混合物中除去酸性气体的方法
US10159930B2 (en) 2014-10-10 2018-12-25 Dow Global Technologies Llc Aqueous solution of 2-dimethylamino-2-hydroxymethyl-1, 3-propanediol useful for acid gas removal from gaseous mixtures
JP2018516747A (ja) 2015-05-20 2018-06-28 ダウ グローバル テクノロジーズ エルエルシー ガス状混合物からの硫化水素の選択的除去のための水溶性アルカノールアミン組成物及び工程
CA3000274C (en) 2015-09-29 2023-08-01 Basf Se Cyclic amine for selectively removing hydrogen sulphide
US10617993B2 (en) 2015-09-29 2020-04-14 Basf Se Absorbent for the selective removal of hydrogen sulfide
MX2018004012A (es) 2015-09-29 2018-05-23 Basf Se Metodo para la remocion selectica de sulfuro de hidrogeno.
EA036128B1 (ru) 2016-04-25 2020-10-01 Басф Се Способ удаления кислотных газов из потока текучей среды путем применения соединений затрудненных аминов на основе морфолина
AU2017277604A1 (en) 2016-06-10 2019-01-03 Basf Se Cyclohexandiamines for use in gas scrubbing
US10668428B2 (en) * 2016-08-24 2020-06-02 Honeywell International Inc. Apparatus and methods for enhancing gas-liquid contact/separation
JP7097901B2 (ja) 2017-02-10 2022-07-08 ビーエーエスエフ ソシエタス・ヨーロピア 流体流から酸性ガスを除去する方法
US10688435B2 (en) * 2017-02-27 2020-06-23 Honeywell International Inc. Dual stripper with water sweep gas
US10941497B2 (en) 2017-02-27 2021-03-09 Honeywell International Inc. Electrochemical carbon dioxide converter and liquid regenerator
EP3624922B1 (en) 2017-05-15 2021-07-07 Basf Se Absorbent, process for producing it and process for selectively removing hydrogen sulfide using it
US10974194B2 (en) 2017-07-18 2021-04-13 Saudi Arabian Oil Company System for flare gas recovery using gas sweetening process
US11458433B2 (en) 2017-09-04 2022-10-04 Basf Se Absorbent and process for selectively removing hydrogen sulfide
US10981104B2 (en) * 2018-04-12 2021-04-20 Saudi Arabian Oil Company System for flare gas recovery using gas sweetening process
CA3130537A1 (en) 2019-02-18 2020-08-27 Basf Se Process for removal of acid gases from a fluid stream with a liquid absorbent comprising a piperazine ring
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US2477314A (en) * 1945-11-27 1949-07-26 Standard Oil Dev Co Process for purifying gases
DE1903065A1 (de) * 1969-01-22 1970-08-27 Basf Ag Verfahren zur Entfernung von Kohlendioxid aus Gasgemischen
DE2551717C3 (de) * 1975-11-18 1980-11-13 Basf Ag, 6700 Ludwigshafen und ggf. COS aus Gasen
US4080424A (en) * 1976-02-11 1978-03-21 Institute Of Gas Technology Process for acid gas removal from gaseous mixtures
IT1064936B (it) * 1976-07-13 1985-02-25 Giammarco Giuseppe Procedimento per l assorbimento di co 2..h2s e simili impurezze e rigenerazione della soluzione con ritorno di calore in colonna di rigenerazione mediante una corrente di gas inerti
US4198378A (en) * 1976-11-12 1980-04-15 Giuseppe Giammarco Process for removing CO2, H2 S and other gaseous impurities from gaseous mixtures
DE3030435C2 (de) * 1980-08-12 1982-12-30 Didier Engineering Gmbh, 4300 Essen Verfahren zum insbesondere mehrstufigen Auswaschen von sauren Bestandteilen wie CO↓2↓, HCN und insbesondere H↓2↓S aus Gasen, insbesondere Koksofengas, mittels einer ammoniakalischen Kreislaufwäsche
DE3236600A1 (de) * 1982-10-02 1984-04-05 Basf Ag, 6700 Ludwigshafen Verfahren zum entfernen von co(pfeil abwaerts)2(pfeil abwaerts) und gegebenenfalls h(pfeil abwaerts)2(pfeil abwaerts)s aus erdgasen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002519171A (ja) * 1998-06-29 2002-07-02 ビーエーエスエフ アクチェンゲゼルシャフト ガスからの酸性ガス成分の除去法
JP2003535209A (ja) * 2000-06-09 2003-11-25 ビーエーエスエフ アクチェンゲゼルシャフト 炭化水素の流体流の脱酸法
JP4851679B2 (ja) * 2000-06-09 2012-01-11 ビーエーエスエフ ソシエタス・ヨーロピア 炭化水素の流体流の脱酸法
WO2004076031A1 (ja) * 2003-02-04 2004-09-10 Nippon Steel Corporation 二酸化炭素の分離回収方法および装置
JP2012532745A (ja) * 2009-07-08 2012-12-20 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 硫黄回収プラントのテールガス処理方法
JP2017533082A (ja) * 2014-08-25 2017-11-09 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 流体のストリームからの硫化水素および二酸化炭素の除去

Also Published As

Publication number Publication date
NO850923L (no) 1985-09-11
US4997630A (en) 1991-03-05
EP0159495A3 (en) 1987-09-30
DE3578379D1 (de) 1990-08-02
EP0159495A2 (de) 1985-10-30
ATE54060T1 (de) 1990-07-15
JPH0421521B2 (enExample) 1992-04-10
EP0159495B1 (de) 1990-06-27
CA1291321C (en) 1991-10-29
NO163172C (no) 1990-04-18
DE3408851A1 (de) 1985-09-12

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