AU5002690A - A catalyst for the selective reduction of nitrogen oxides with ammonia - Google Patents
A catalyst for the selective reduction of nitrogen oxides with ammoniaInfo
- Publication number
- AU5002690A AU5002690A AU50026/90A AU5002690A AU5002690A AU 5002690 A AU5002690 A AU 5002690A AU 50026/90 A AU50026/90 A AU 50026/90A AU 5002690 A AU5002690 A AU 5002690A AU 5002690 A AU5002690 A AU 5002690A
- Authority
- AU
- Australia
- Prior art keywords
- catalyst
- nitrogen oxides
- selective reduction
- component
- ammonia
- 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
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title abstract 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract 4
- 239000003054 catalyst Substances 0.000 title abstract 3
- 229910021529 ammonia Inorganic materials 0.000 title abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract 2
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 229910052746 lanthanum Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- 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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20723—Vanadium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20776—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/92—Dimensions
- B01D2255/9207—Specific surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/613—10-100 m2/g
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A catalyst for the selective reduction of nitrogen oxides by means of ammonia contains, in addition to titanium oxide as component A), at least one oxide selected from the group comprising W, Si, B, Al, P, Zr, Ba, Y, La and Ce and at least one oxide selected from the group comprising V, Nb, Mo, Fe and Cu as component B), the atomic ratio between the elements of the components A) and B) being 1 : 0.001 to 1. The catalyst is obtainable by kneading reactive titanium oxide of high specific surface area comprising predominantly anatase with the substances comprising component B) or their precursors with the addition of processing agents to give a homogeneous kneaded mass, extruding this, drying the extrudate and calcination in air at 300 - 800 DEG C.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3906136 | 1989-02-28 | ||
DE3906136A DE3906136C1 (en) | 1989-02-28 | 1989-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU5002690A true AU5002690A (en) | 1990-09-06 |
AU615375B2 AU615375B2 (en) | 1991-09-26 |
Family
ID=6375060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU50026/90A Ceased AU615375B2 (en) | 1989-02-28 | 1990-02-21 | A catalyst for the selective reduction of nitrogen oxides with ammonia |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0385164B1 (en) |
JP (1) | JPH02290250A (en) |
KR (1) | KR900012674A (en) |
AT (1) | ATE95443T1 (en) |
AU (1) | AU615375B2 (en) |
BR (1) | BR9000900A (en) |
CA (1) | CA2010970A1 (en) |
DD (1) | DD296854A5 (en) |
DE (2) | DE3906136C1 (en) |
DK (1) | DK0385164T3 (en) |
ES (1) | ES2046549T3 (en) |
RU (1) | RU2058814C1 (en) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5120695A (en) * | 1989-07-28 | 1992-06-09 | Degusaa Aktiengesellschaft (Degussa Ag) | Catalyst for purifying exhaust gases from internal combustion engines and gas turbines operated at above the stoichiometric ratio |
DE4215481A1 (en) * | 1992-05-11 | 1993-11-18 | Siemens Ag | Fine honeycomb ceramic catalyst for nitrogen oxide(s) redn. in waste gas - contg. e.g. one or more of titanium di:oxide, tungsten oxide, molybdenum oxide and vanadium oxide |
JPH0768172A (en) * | 1993-07-20 | 1995-03-14 | Sakai Chem Ind Co Ltd | Catalyst for catalyst production of nox and method thereof |
RU2115470C1 (en) * | 1994-05-30 | 1998-07-20 | Сименс АГ | Catalyst for reducing nitrogen oxide content in flow medium and method of preparation thereof |
DE69619327T2 (en) * | 1995-10-09 | 2002-07-18 | Shell Internationale Research Maatschappij B.V., Den Haag/S'gravenhage | Catalyst and process for converting nitrogen oxides |
JP3379627B2 (en) * | 1996-08-30 | 2003-02-24 | 株式会社キャタラー | Exhaust gas purification catalyst |
DE19844758C1 (en) * | 1998-09-29 | 2000-07-06 | Siemens Ag | Process for the production of a catalyst body |
DE19903533A1 (en) * | 1999-01-29 | 2000-08-10 | Degussa | Process for the selective catalytic reduction of nitrogen oxides in oxygen-containing exhaust gases |
DE10021071C1 (en) | 2000-04-29 | 2002-03-07 | Omg Ag & Co Kg | Process for removing nitrogen oxides from a flue gas stream containing oxygen |
DE10103771A1 (en) | 2001-01-27 | 2002-08-14 | Omg Ag & Co Kg | Method for restoring the catalytic activity of a catalyst which is arranged in the exhaust tract of a diesel engine and has at least one oxidation function |
DE10124549A1 (en) | 2001-05-19 | 2002-11-28 | Degussa | Reduction of nitrogen oxides in vehicle exhaust gases involves selective catalytic reduction with ammonia produced by contacting rich fuel/air mixture containing nitric oxide with three-way catalyst |
DE102005044494B3 (en) * | 2005-09-16 | 2007-03-08 | Wenzel, Lothar | Device for removing harmful components from exhaust gases of internal combustion engines |
DE102006031724B3 (en) * | 2006-07-08 | 2008-04-30 | Umicore Ag & Co. Kg | Structured selective catalytic reduction-catalyst, useful for removing nitrogen oxide in exhaust gas, comprises catalytically active material zones of iron-exchanged zeolite and transition metal-exchanged zeolite |
JP5345530B2 (en) | 2006-07-08 | 2013-11-20 | ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト | Structured SCR catalyst for reducing nitrogen oxides in exhaust gas from lean burn engines using ammonia as a reducing agent |
EP2091635B1 (en) | 2006-10-23 | 2020-09-09 | Umicore AG & Co. KG | Vanadium-free catalyst for selective catalytic reduction and process for its production |
WO2008096413A1 (en) * | 2007-02-06 | 2008-08-14 | Ibiden Co., Ltd. | Honeycomb structure |
ATE460973T1 (en) | 2008-04-11 | 2010-04-15 | Umicore Ag & Co Kg | EMISSION TREATMENT SYSTEM FOR TREATING ENGINE EXHAUST GASES USING SCR CATALYST |
EP2112339A1 (en) | 2008-04-24 | 2009-10-28 | Umicore AG & Co. KG | Method and device for cleaning exhaust gases of a combustion motor |
PL2918330T3 (en) | 2008-05-07 | 2017-07-31 | Umicore Ag & Co. Kg | Method for reducing nitrogen oxides in hydrocarbon-containing waste gas streams using a scr catalytic converter comprising a molecular sieve |
EP3473825A1 (en) | 2008-06-27 | 2019-04-24 | Umicore Ag & Co. Kg | Method and device for cleaning diesel exhaust gases |
US8246923B2 (en) | 2009-05-18 | 2012-08-21 | Umicore Ag & Co. Kg | High Pd content diesel oxidation catalysts with improved hydrothermal durability |
US8557203B2 (en) | 2009-11-03 | 2013-10-15 | Umicore Ag & Co. Kg | Architectural diesel oxidation catalyst for enhanced NO2 generator |
CN101757937B (en) * | 2009-11-24 | 2012-08-29 | 江苏工业学院 | Titanium dioxide intercalation photocatalysed composite material and preparation method thereof |
BR112012027087A2 (en) | 2010-04-20 | 2016-07-26 | Unicore Ag & Co Kg | oxide mixtures for selective catalytic reduction of nitrogen oxides in exhaust gases |
WO2012086413A1 (en) * | 2010-12-20 | 2012-06-28 | 三菱重工業株式会社 | Carrier for nox reduction catalyst |
FR2972366B1 (en) * | 2011-03-08 | 2016-01-15 | Rhodia Operations | PROCESS FOR TREATING A GAS CONTAINING NITROGEN OXIDES (NOX) USING AS A CATALYST A COMPOSITION BASED ON ZIRCONIUM, CERIUM AND NIOBIUM |
US9242211B2 (en) | 2011-05-30 | 2016-01-26 | The Babcock & Wilcox Company | Catalysts possessing an improved resistance to poisoning |
CN103534028B (en) | 2011-06-07 | 2017-02-08 | 尤米科尔股份公司及两合公司 | Catalytic converter for the selective catalytic reduction of nitrogen oxides in the exhaust gas of diesel engines |
DE102012013288A1 (en) * | 2012-07-05 | 2014-01-09 | Man Truck & Bus Ag | Catalyst, process for the preparation of the catalyst, use of the catalyst |
WO2014073067A1 (en) * | 2012-11-08 | 2014-05-15 | イビデン株式会社 | Honeycomb structure |
WO2014073065A1 (en) * | 2012-11-08 | 2014-05-15 | イビデン株式会社 | Honeycomb structure and manufacturing method thereof |
JPWO2014073066A1 (en) * | 2012-11-08 | 2016-09-08 | イビデン株式会社 | Honeycomb structure and manufacturing method thereof |
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JP2015147165A (en) * | 2014-02-05 | 2015-08-20 | イビデン株式会社 | Honeycomb catalyst and production method of honeycomb catalyst |
DE102014113784A1 (en) | 2014-09-24 | 2016-03-24 | Umicore Ag & Co. Kg | Process for the preparation of a vanadium-containing catalyst |
DE102014113786A1 (en) | 2014-09-24 | 2016-03-24 | Umicore Ag & Co. Kg | Process for the preparation of a tungsten-containing catalyst |
EP3368216A1 (en) * | 2015-10-28 | 2018-09-05 | Umicore AG & Co. KG | Honeycomb catalyst for removal of nitrogen oxides in flue and exhaust gasses and method of preparation thereof |
CN108136372B (en) * | 2015-10-28 | 2021-08-31 | 托普索公司 | Monolithic honeycomb oxidation catalyst and preparation method thereof |
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KR102067668B1 (en) * | 2018-03-02 | 2020-01-17 | 한국과학기술연구원 | Catalyst for selectively reducing nitric oxide and nitric oxide reduction system using the same |
CN108927142A (en) * | 2018-06-29 | 2018-12-04 | 凯龙高科技股份有限公司 | A kind of monoblock type SCR catalyst and its preparation method and application |
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WO2021194043A1 (en) | 2020-03-25 | 2021-09-30 | 한국과학기술연구원 | Catalyst for fenton reaction system comprising metal oxide containing functional group on surface thereof, and fenton reaction system using same |
KR102327832B1 (en) | 2020-03-25 | 2021-11-18 | 한국과학기술연구원 | Nitrate-functionalized transition metal oxide catalysts for the degradation of recalcitrant contaminants and degradation reaction system using the same |
JP2023543697A (en) | 2020-09-18 | 2023-10-18 | ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト | SCR catalyst composition and SCR catalyst article comprising the catalyst composition |
WO2022093803A1 (en) * | 2020-10-27 | 2022-05-05 | Hasbro Inc. | Stretch compound and method of making the same |
KR102438438B1 (en) * | 2020-11-25 | 2022-09-01 | 한서대학교 산학협력단 | Low Temperature SCR Catalyst for Treating of the Exhaust Gas from a Fixed Source and Preparation Method Thereof |
EP4063003A1 (en) | 2021-03-23 | 2022-09-28 | UMICORE AG & Co. KG | Filter for the aftertreatment of exhaust gases of internal combustion engines |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4048112A (en) * | 1973-09-10 | 1977-09-13 | Mitsubishi Chemical Industries Ltd. | Catalyst for selective reduction of nitrogen oxides |
US4085193A (en) * | 1973-12-12 | 1978-04-18 | Mitsubishi Petrochemical Co. Ltd. | Catalytic process for reducing nitrogen oxides to nitrogen |
DE2846476C3 (en) * | 1977-10-26 | 1982-01-21 | Babcock-Hitachi K.K., Tokyo | Sintered product containing titanium dioxide and method for sintering powdered titanium dioxide |
JPS56168835A (en) * | 1980-05-31 | 1981-12-25 | Mitsubishi Petrochem Co Ltd | Denitrating catalyst and denitrating method |
JPH064126B2 (en) * | 1985-06-10 | 1994-01-19 | 株式会社日本触媒 | Exhaust gas purification method |
DE3531809A1 (en) * | 1985-09-06 | 1987-03-26 | Kraftwerk Union Ag | CATALYST MATERIAL FOR REDUCING NITROGEN OXIDES |
DE3531810A1 (en) * | 1985-09-06 | 1987-03-19 | Kraftwerk Union Ag | CATALYST MATERIAL FOR REDUCING NITROGEN OXIDES |
JP2548754B2 (en) * | 1987-12-02 | 1996-10-30 | 三菱重工業株式会社 | Nitrogen oxide removal catalyst |
-
1989
- 1989-02-28 DE DE3906136A patent/DE3906136C1/de not_active Expired - Lifetime
-
1990
- 1990-02-12 DK DK90102664.1T patent/DK0385164T3/en active
- 1990-02-12 ES ES199090102664T patent/ES2046549T3/en not_active Expired - Lifetime
- 1990-02-12 EP EP90102664A patent/EP0385164B1/en not_active Revoked
- 1990-02-12 DE DE90102664T patent/DE59002961D1/en not_active Revoked
- 1990-02-12 AT AT90102664T patent/ATE95443T1/en not_active IP Right Cessation
- 1990-02-21 AU AU50026/90A patent/AU615375B2/en not_active Ceased
- 1990-02-23 BR BR909000900A patent/BR9000900A/en active Search and Examination
- 1990-02-27 RU SU904743365A patent/RU2058814C1/en active
- 1990-02-27 CA CA002010970A patent/CA2010970A1/en not_active Abandoned
- 1990-02-27 DD DD90338193A patent/DD296854A5/en not_active IP Right Cessation
- 1990-02-27 KR KR1019900002491A patent/KR900012674A/en not_active Application Discontinuation
- 1990-02-28 JP JP2046018A patent/JPH02290250A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH02290250A (en) | 1990-11-30 |
DD296854A5 (en) | 1991-12-19 |
BR9000900A (en) | 1991-02-13 |
RU2058814C1 (en) | 1996-04-27 |
DE59002961D1 (en) | 1993-11-11 |
DE3906136C1 (en) | 1990-08-09 |
KR900012674A (en) | 1990-09-01 |
ATE95443T1 (en) | 1993-10-15 |
EP0385164A3 (en) | 1990-11-28 |
EP0385164A2 (en) | 1990-09-05 |
AU615375B2 (en) | 1991-09-26 |
EP0385164B1 (en) | 1993-10-06 |
ES2046549T3 (en) | 1994-02-01 |
CA2010970A1 (en) | 1990-08-31 |
DK0385164T3 (en) | 1994-02-28 |
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