DK557489A - Fremgangsmaade til adskillelse af mindst en komponent fra en gasstroem, specielt til fjernelse af so2 - Google Patents
Fremgangsmaade til adskillelse af mindst en komponent fra en gasstroem, specielt til fjernelse af so2Info
- Publication number
- DK557489A DK557489A DK557489A DK557489A DK557489A DK 557489 A DK557489 A DK 557489A DK 557489 A DK557489 A DK 557489A DK 557489 A DK557489 A DK 557489A DK 557489 A DK557489 A DK 557489A
- Authority
- DK
- Denmark
- Prior art keywords
- absorbing medium
- separating
- procedure
- remove
- specifically
- Prior art date
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
- B01D53/1493—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
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/507—Sulfur oxides by treating the gases with other liquids
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Silicon Compounds (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA582680 | 1988-11-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
DK557489D0 DK557489D0 (da) | 1989-11-08 |
DK557489A true DK557489A (da) | 1990-05-10 |
Family
ID=4139078
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK557389A DK557389A (da) | 1988-11-09 | 1989-11-08 | Cyclisk fremgangsmaade til fjernelse af svovldioxid fra en so2-holdig gasstroem |
DK557489A DK557489A (da) | 1988-11-09 | 1989-11-08 | Fremgangsmaade til adskillelse af mindst en komponent fra en gasstroem, specielt til fjernelse af so2 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK557389A DK557389A (da) | 1988-11-09 | 1989-11-08 | Cyclisk fremgangsmaade til fjernelse af svovldioxid fra en so2-holdig gasstroem |
Country Status (16)
Country | Link |
---|---|
US (1) | US5019361A (da) |
EP (2) | EP0368422A3 (da) |
JP (1) | JPH0722677B2 (da) |
CN (2) | CN1024325C (da) |
AT (1) | ATE119060T1 (da) |
AU (2) | AU624873B2 (da) |
DE (1) | DE68921416T2 (da) |
DK (2) | DK557389A (da) |
ES (1) | ES2018941A6 (da) |
GR (2) | GR890100709A (da) |
HU (2) | HUT54068A (da) |
IE (1) | IE72217B1 (da) |
PL (1) | PL162490B1 (da) |
RU (1) | RU2018353C1 (da) |
YU (2) | YU213589A (da) |
ZA (1) | ZA898512B (da) |
Families Citing this family (78)
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US5364604A (en) * | 1987-03-02 | 1994-11-15 | Turbotak Technologies Inc. | Solute gas-absorbing procedure |
US5439509A (en) * | 1991-01-22 | 1995-08-08 | Turbotak Inc. | Stripping method and apparatus |
US5403569A (en) * | 1991-01-25 | 1995-04-04 | Abdelmalek; Fawzy T. | Process for boiler flue gas cleaning by absorption, separation and liquefaction |
WO1993003825A1 (en) * | 1991-08-13 | 1993-03-04 | The Dow Chemical Company | A composition and method for simultaneous absorption of sulfur dioxide and nitric oxide |
US5312605A (en) * | 1991-12-11 | 1994-05-17 | Northeastern University | Method for simultaneously removing SO2 and NOX pollutants from exhaust of a combustion system |
US5352423A (en) * | 1991-12-11 | 1994-10-04 | Northeastern University | Use of aromatic salts for simultaneously removing SO2 and NOx pollutants from exhaust of a combustion system |
US5202103A (en) * | 1991-12-20 | 1993-04-13 | Union Carbide Chemicals & Plastics Technology Corporation | Removal of sulfur dioxide from gas streams |
US5304361A (en) * | 1992-06-26 | 1994-04-19 | Union Carbide Chemicals & Plastics Technology Corporation | Removal of hydrogen sulfide |
US5262139A (en) * | 1992-09-29 | 1993-11-16 | Union Carbide Chemicals & Plastics Technology Corporation | Removal of sulfur dioxide from gas streams |
US5292407A (en) * | 1992-12-18 | 1994-03-08 | Union Carbide Chemicals & Plastics Technology Corporation | Process for converting heat stable amine salts to heat regenerable amine salts |
US5851265A (en) * | 1996-09-03 | 1998-12-22 | Monsanto Company | Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents |
CA2201004C (en) * | 1997-03-25 | 2001-11-27 | Cansolv Technologies, Inc. | Safe storage and transportation of sulfur dioxide |
RU2191621C2 (ru) * | 1998-04-06 | 2002-10-27 | Ниппон Ниюказаи Ко., Лтд. | Способ регенерации жидкости, абсорбирующей кислый газ, содержащей метилдиэтаноламин и производное пиперазина низших алкилов |
EP0963778A1 (de) * | 1998-05-12 | 1999-12-15 | Linde Aktiengesellschaft | Verfahren zur Trocknung und Reinigung von Luft |
CN1089261C (zh) * | 1998-10-29 | 2002-08-21 | 鲜荣忠 | 仿气象治理大气污染的方法及设备 |
CN1101717C (zh) * | 2000-10-16 | 2003-02-19 | 中国石油化工集团公司 | 一种湿法烟气脱SOx方法 |
US6602423B2 (en) * | 2001-02-27 | 2003-08-05 | Von Phul Stephen A. | Method and apparatus for removing foaming contaminants from hydrocarbon processing solvents |
US7056482B2 (en) * | 2003-06-12 | 2006-06-06 | Cansolv Technologies Inc. | Method for recovery of CO2 from gas streams |
US7214358B2 (en) * | 2003-08-13 | 2007-05-08 | Cansolv Technologies Inc. | Low energy regenerable SO2 scrubbing process |
DE102004011429A1 (de) * | 2004-03-09 | 2005-09-29 | Basf Ag | Verfahren zum Entfernen von Kohlendioxid aus Gasströmen mit niedrigen Kohlendioxid-Partialdrücken |
US7566687B2 (en) * | 2005-06-13 | 2009-07-28 | Jacam Chemical, LLC | Methods and compositions for removing sulfur from liquid hydrocarbons |
US7384616B2 (en) * | 2005-06-20 | 2008-06-10 | Cansolv Technologies Inc. | Waste gas treatment process including removal of mercury |
US20070080098A1 (en) * | 2005-10-12 | 2007-04-12 | Zaid Gene H | Methods and compositions for removing sulfur from liquid hydrocarbons using ammonium adducts |
DE102005050385A1 (de) | 2005-10-20 | 2007-04-26 | Basf Ag | Absorptionsmittel und Verfahren zum Entfernen von Kohlendioxid aus Gasströmen |
US20070105262A1 (en) * | 2005-11-10 | 2007-05-10 | Infineon Technologies Ag | Method for fabricating an integrated circuit with a CMOS manufacturing process |
PE20071048A1 (es) | 2005-12-12 | 2007-10-18 | Basf Ag | Proceso para la recuperacion de dioxido de carbono |
US7776296B2 (en) | 2006-03-10 | 2010-08-17 | Cansolv Technologies Inc. | Regeneration of ion exchangers that are used for salt removal from acid gas capture plants |
DK2026896T3 (da) | 2006-05-18 | 2016-11-28 | Basf Se | Kuldioxidabsorptionsmiddel med forringet regenerations-energibehov |
WO2008073935A1 (en) * | 2006-12-13 | 2008-06-19 | Dow Global Technologies Inc. | Method and composition for removal of mercaptans from gas streams |
JP4875522B2 (ja) * | 2007-03-14 | 2012-02-15 | 三菱重工業株式会社 | Co2回収装置及び廃棄物抽出方法 |
US20080245233A1 (en) * | 2007-04-05 | 2008-10-09 | Baker Hughes Incorporated | Method for Inhibiting Fouling in Basic Washing Systems |
KR100831093B1 (ko) * | 2007-04-09 | 2008-05-22 | 한국과학기술연구원 | 이온성 액체를 이용한 is 싸이클 공정의 혼합가스로부터순수 이산화황의 분리 회수 방법 |
CA2703998C (en) | 2007-11-15 | 2016-07-05 | Basf Se | Method for removing carbon dioxide from fluid flows, in particular combustion exhaust gases |
US8097068B2 (en) * | 2008-11-06 | 2012-01-17 | Cansolv Technologies Inc. | Method for treating a diamine absorbent stream |
US8063112B2 (en) * | 2008-12-08 | 2011-11-22 | Cansolv Technologies Inc. | Process for the regeneration of an ion exchange resin using sulfurous acid |
US7785399B2 (en) * | 2009-01-16 | 2010-08-31 | Uop Llc | Heat integration for hot solvent stripping loop in an acid gas removal process |
CN101537304B (zh) * | 2009-04-17 | 2011-09-28 | 合肥工业大学 | 一种环胺类二氧化硫气体吸收剂及其制备方法 |
CN101869824B (zh) * | 2009-04-21 | 2012-06-06 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种烟气脱硫剂和烟气脱硫方法 |
CN101584961B (zh) * | 2009-07-01 | 2011-07-20 | 合肥工业大学 | 可再生的烟气脱硫剂及制备方法 |
WO2012100330A1 (en) | 2011-01-24 | 2012-08-02 | Electrosep Technologies Inc. | Method for removing heat stable base salts from a contaminated basic solution, and use thereof in a process for recovering acid gas from an acid gas stream |
CN102302894B (zh) * | 2011-07-15 | 2013-06-19 | 攀钢集团攀枝花钢钒有限公司 | 一种可再生烟气脱硫工艺 |
EP2559476A1 (de) * | 2011-08-18 | 2013-02-20 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zum Abzug von leicht flüchtigen Degradationsprodukten aus dem Absorptionsmittelkreislauf eines CO2 Abscheideprozesses |
US8952206B2 (en) * | 2011-08-25 | 2015-02-10 | Dow Global Technologies Llc | Formate based heat stable salt mitigation in physical solvent acid gas absorption processes |
JP5868795B2 (ja) * | 2012-06-25 | 2016-02-24 | 株式会社東芝 | 酸性ガス吸収剤、酸性ガス除去方法および酸性ガス除去装置 |
US9815693B2 (en) | 2013-07-18 | 2017-11-14 | Shell Oil Company | Processes for producing sulfuric acid from sour tail gas field |
JP6173817B2 (ja) * | 2013-07-30 | 2017-08-02 | 株式会社東芝 | 酸性ガス吸収剤、酸性ガス除去方法及び酸性ガス除去装置 |
CN103349886B (zh) * | 2013-08-07 | 2016-05-11 | 北京国电龙源环保工程有限公司 | 一种可再生多元叔胺二氧化硫吸收剂及其制备方法 |
CN103495340B (zh) * | 2013-10-15 | 2015-11-18 | 北京博源恒升高科技有限公司 | 复合醇胺类溶液脱除气体中SOx的方法 |
US9919262B2 (en) | 2013-11-07 | 2018-03-20 | Shell Oil Company | Process for capturing sulfur dioxide from a gas stream |
CN103657342B (zh) * | 2013-12-10 | 2016-04-06 | 陕西省石油化工研究设计院 | 一种高效可再生so2吸收剂 |
CN103638779B (zh) * | 2013-12-12 | 2015-08-12 | 合肥工业大学 | 一种可再生有机胺烟气脱硫剂及其制备方法 |
CN103721553A (zh) | 2014-01-07 | 2014-04-16 | 江苏新世纪江南环保股份有限公司 | 一种利用氨法脱硫技术高效去除酸性气硫化物的方法 |
CN103908873B (zh) * | 2014-04-04 | 2016-03-09 | 江苏蓝电环保股份有限公司 | 一种从工业废气中回收二氧化硫的方法 |
CN103949141B (zh) * | 2014-05-14 | 2016-06-22 | 北京国电龙源环保工程有限公司 | 一种处理有机胺脱硫液中副产物硫代硫酸根的方法 |
CN104208985B (zh) * | 2014-09-29 | 2016-08-24 | 长沙华时捷环保科技发展股份有限公司 | 烟气脱硫方法及系统 |
CN105983310A (zh) * | 2015-01-30 | 2016-10-05 | 中国石油天然气股份有限公司 | 一种选择性吸收二氧化硫的吸收剂及其应用 |
CN107158887A (zh) * | 2016-03-08 | 2017-09-15 | 青岛科技大学 | 一种脱除气体中so2的方法 |
WO2018078065A1 (en) | 2016-10-27 | 2018-05-03 | Shell Internationale Research Maatschappij B.V. | Process for removing sulfur dioxide from a gas stream |
WO2018078154A1 (en) | 2016-10-31 | 2018-05-03 | Shell Internationale Research Maatschappij B.V. | Process for removing sulfur dioxide from a gas stream |
WO2018083076A1 (en) | 2016-11-01 | 2018-05-11 | Shell Internationale Research Maatschappij B.V. | Process for producing a purified gas stream |
EP3592449A1 (en) | 2017-03-08 | 2020-01-15 | Shell Internationale Research Maatschappij B.V. | Process for removing so2 from gas with so2 content that is temporarily very high |
CN108144428A (zh) | 2017-03-15 | 2018-06-12 | 江苏新世纪江南环保股份有限公司 | 一种氨法高效脱除气体中硫氧化物和尘的方法及装置 |
CN107213769B (zh) | 2017-05-25 | 2019-09-20 | 江苏新世纪江南环保股份有限公司 | 一种分室加氨的氨法脱硫方法及装置 |
CN107213785B (zh) | 2017-05-25 | 2020-08-07 | 江苏新世纪江南环保股份有限公司 | 一种fcc尾气氨法脱硝脱硫除尘的方法及装置 |
BR102017013708B1 (pt) | 2017-06-14 | 2020-03-10 | Jiangnan Environmental Protection Group Inc. | Sistema e método de adição de amônia automáticos para dispositivo de dessulfurização à base de amônia |
CN107213770B (zh) | 2017-07-03 | 2023-03-17 | 江苏新世纪江南环保股份有限公司 | 氨法脱硫吸收塔及其建立方法和运行方法 |
CN108722163B (zh) | 2017-09-07 | 2019-06-07 | 江苏新世纪江南环保股份有限公司 | 一种氨法脱硫控制吸收过程气溶胶产生的方法 |
CN108452652B (zh) * | 2017-12-04 | 2021-06-08 | 盐城市兰丰环境工程科技有限公司 | 一种工业气体脱硫系统 |
CN110368816A (zh) | 2018-04-13 | 2019-10-25 | 江苏新世纪江南环保股份有限公司 | 一种氨法脱硫溶液的氧化方法及装置 |
CN110732227B (zh) | 2018-07-20 | 2023-02-21 | 江南环保集团股份有限公司 | 一种酸性气处理的方法和装置 |
EP3597286A1 (en) | 2018-07-20 | 2020-01-22 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
CA3121931A1 (en) * | 2019-05-02 | 2020-11-05 | Commonwealth Scientific And Industrial Research Organisation | Process for regenerating a liquid absorbent |
RU2708606C1 (ru) * | 2019-07-25 | 2019-12-09 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский государственный университет" (НИ ТГУ) | Абсорбционно-десорбционное устройство циркуляционного типа для сепарации гелия из природного газа |
CN110743326A (zh) * | 2019-10-28 | 2020-02-04 | 大连理工大学 | 一类用于捕集二氧化碳的高效节能的非水吸收剂及应用 |
CN110975546B (zh) | 2019-12-26 | 2021-08-17 | 江苏新世纪江南环保股份有限公司 | 一种改进的氨法脱硫控制吸收过程气溶胶产生的方法 |
CN114432845A (zh) * | 2020-11-03 | 2022-05-06 | 财团法人工业技术研究院 | 去除烟道气中的二氧化硫的方法与装置 |
RU2759096C1 (ru) * | 2021-04-30 | 2021-11-09 | Федеральное государственное автономное образовательное учреждение высшего образования "Северо-Восточный федеральный университет имени М.К.Аммосова" | Способ очистки от диоксида серы |
CN113318586B (zh) * | 2021-06-09 | 2022-07-19 | 华东理工大学 | 一种胺类化合物在提高有机硫溶解和吸收脱除中的应用 |
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US2106446A (en) * | 1934-02-01 | 1938-01-25 | Ig Farbenindustrie Ag | Removal of gaseous weak acids from gases containing the same |
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-
1989
- 1989-06-02 US US07/360,404 patent/US5019361A/en not_active Expired - Lifetime
- 1989-10-31 GR GR890100709A patent/GR890100709A/el not_active IP Right Cessation
- 1989-11-08 HU HU895832A patent/HUT54068A/hu unknown
- 1989-11-08 AT AT89202841T patent/ATE119060T1/de not_active IP Right Cessation
- 1989-11-08 PL PL28221089A patent/PL162490B1/pl unknown
- 1989-11-08 EP EP19890202840 patent/EP0368422A3/en not_active Withdrawn
- 1989-11-08 CN CN89108932A patent/CN1024325C/zh not_active Expired - Lifetime
- 1989-11-08 YU YU02135/89A patent/YU213589A/xx unknown
- 1989-11-08 HU HU895833A patent/HUT54069A/hu unknown
- 1989-11-08 YU YU02136/89A patent/YU213689A/xx unknown
- 1989-11-08 ES ES8903781A patent/ES2018941A6/es not_active Expired - Lifetime
- 1989-11-08 GR GR890100739A patent/GR890100739A/el unknown
- 1989-11-08 IE IE358889A patent/IE72217B1/en not_active IP Right Cessation
- 1989-11-08 DK DK557389A patent/DK557389A/da not_active Application Discontinuation
- 1989-11-08 AU AU44498/89A patent/AU624873B2/en not_active Expired
- 1989-11-08 DK DK557489A patent/DK557489A/da not_active Application Discontinuation
- 1989-11-08 EP EP89202841A patent/EP0368423B1/en not_active Expired - Lifetime
- 1989-11-08 DE DE68921416T patent/DE68921416T2/de not_active Expired - Lifetime
- 1989-11-08 ZA ZA898512A patent/ZA898512B/xx unknown
- 1989-11-08 AU AU44499/89A patent/AU4449989A/en not_active Abandoned
- 1989-11-08 CN CN89109189A patent/CN1043445A/zh active Pending
- 1989-11-09 RU SU894742509A patent/RU2018353C1/ru active
- 1989-11-09 JP JP1289958A patent/JPH0722677B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GR890100739A (el) | 1990-12-31 |
DK557389D0 (da) | 1989-11-08 |
EP0368423A2 (en) | 1990-05-16 |
DK557489D0 (da) | 1989-11-08 |
ZA898512B (en) | 1991-06-26 |
HU895832D0 (en) | 1990-01-28 |
DE68921416D1 (de) | 1995-04-06 |
AU4449989A (en) | 1990-05-17 |
EP0368422A2 (en) | 1990-05-16 |
GR890100709A (el) | 1990-12-31 |
EP0368422A3 (en) | 1991-04-10 |
YU213589A (en) | 1991-02-28 |
ATE119060T1 (de) | 1995-03-15 |
AU4449889A (en) | 1990-05-17 |
HUT54069A (en) | 1991-01-28 |
JPH0722677B2 (ja) | 1995-03-15 |
EP0368423B1 (en) | 1995-03-01 |
HU895833D0 (en) | 1990-01-28 |
AU624873B2 (en) | 1992-06-25 |
CN1024325C (zh) | 1994-04-27 |
RU2018353C1 (ru) | 1994-08-30 |
DE68921416T2 (de) | 1995-07-06 |
HUT54068A (en) | 1991-01-28 |
JPH02258012A (ja) | 1990-10-18 |
IE72217B1 (en) | 1997-04-09 |
DK557389A (da) | 1990-05-10 |
EP0368423A3 (en) | 1991-03-20 |
US5019361A (en) | 1991-05-28 |
CN1043269A (zh) | 1990-06-27 |
CN1043445A (zh) | 1990-07-04 |
ES2018941A6 (es) | 1991-05-16 |
IE893588L (en) | 1990-05-09 |
YU213689A (en) | 1991-02-28 |
PL162490B1 (pl) | 1993-12-31 |
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Legal Events
Date | Code | Title | Description |
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AHB | Application shelved due to non-payment |