GB1466789A - Catalytic removal of oxides of nitrogen from waste gases - Google Patents
Catalytic removal of oxides of nitrogen from waste gasesInfo
- Publication number
 - GB1466789A GB1466789A GB1312074A GB1312074A GB1466789A GB 1466789 A GB1466789 A GB 1466789A GB 1312074 A GB1312074 A GB 1312074A GB 1312074 A GB1312074 A GB 1312074A GB 1466789 A GB1466789 A GB 1466789A
 - Authority
 - GB
 - United Kingdom
 - Prior art keywords
 - nitrogen
 - oxides
 - march
 - catalyst
 - waste gases
 - 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.)
 - Expired
 
Links
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
 - B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
 - B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
 - B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
 - B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
 - B01J23/847—Vanadium, niobium or tantalum or polonium
 - B01J23/8472—Vanadium
 
 - 
        
- 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
 - B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
 - B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
 - B01J23/20—Vanadium, niobium or tantalum
 - B01J23/22—Vanadium
 
 - 
        
- 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
 - B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
 - B01J23/24—Chromium, molybdenum or tungsten
 - B01J23/26—Chromium
 
 - 
        
- 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
 - B01D2255/20738—Iron
 
 - 
        
- 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
 - B01D2255/20746—Cobalt
 
 - 
        
- 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
 - B01D2255/20753—Nickel
 
 - 
        
- 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
 - B01D2255/20761—Copper
 
 - 
        
- 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
 - B01D2255/20784—Chromium
 
 - 
        
- B—PERFORMING OPERATIONS; TRANSPORTING
 - B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
 - B01D—SEPARATION
 - B01D2255/00—Catalysts
 - B01D2255/20—Metals or compounds thereof
 - B01D2255/209—Other metals
 - B01D2255/2094—Tin
 
 
Landscapes
- Chemical & Material Sciences (AREA)
 - Engineering & Computer Science (AREA)
 - Chemical Kinetics & Catalysis (AREA)
 - Materials Engineering (AREA)
 - Organic Chemistry (AREA)
 - Health & Medical Sciences (AREA)
 - Combustion & Propulsion (AREA)
 - Biomedical Technology (AREA)
 - Environmental & Geological Engineering (AREA)
 - Analytical Chemistry (AREA)
 - General Chemical & Material Sciences (AREA)
 - Oil, Petroleum & Natural Gas (AREA)
 - Catalysts (AREA)
 - Exhaust Gas Treatment By Means Of Catalyst (AREA)
 
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| JP3484573A JPS5523086B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-03-26 | 1973-03-26 | 
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| GB1466789A true GB1466789A (en) | 1977-03-09 | 
Family
ID=12425513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| GB1312074A Expired GB1466789A (en) | 1973-03-26 | 1974-03-25 | Catalytic removal of oxides of nitrogen from waste gases | 
Country Status (6)
Families Citing this family (81)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JPS545388B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-04-10 | 1979-03-16 | ||
| JPS503991A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-04-18 | 1975-01-16 | ||
| JPS542912B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-09-10 | 1979-02-15 | ||
| JPS5427839B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-09-10 | 1979-09-12 | ||
| GB1430730A (en) * | 1973-09-10 | 1976-04-07 | Mitsubishi Chem Ind | Reductive decomposition of oxides of nitrogen | 
| US4170572A (en) * | 1973-10-18 | 1979-10-09 | Union Carbide Corporation | Oxidation catalyst prepared with NH3 | 
| JPS6243736B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-03-29 | 1987-09-16 | Mitsubishi Yuka Kk | |
| US4085193A (en) * | 1973-12-12 | 1978-04-18 | Mitsubishi Petrochemical Co. Ltd. | Catalytic process for reducing nitrogen oxides to nitrogen | 
| US4056600A (en) * | 1974-06-03 | 1977-11-01 | Gennady Alexeevich Skvortsov | Method of selective catalytic purification of waste gases from nitrogen oxides | 
| JPS5132479A (en) * | 1974-09-13 | 1976-03-19 | Asahi Glass Co Ltd | Chitsusosankabutsu no shorihoho | 
| JPS5181776A (ja) * | 1975-01-13 | 1976-07-17 | Mitsubishi Chem Ind | Nenshohaigasunodatsushohoho | 
| JPS5246558B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1975-02-17 | 1977-11-25 | ||
| JPS5621469B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1975-02-25 | 1981-05-19 | ||
| JPS585703B2 (ja) * | 1975-05-19 | 1983-02-01 | 株式会社日本触媒 | チツソサンカブツジヨキヨヨウシヨクバイ | 
| JPS5823136B2 (ja) * | 1975-07-23 | 1983-05-13 | 三井化学株式会社 | 排ガス中の窒素酸化物の除去方法 | 
| US4131643A (en) * | 1975-09-05 | 1978-12-26 | Kobe Steel Limited | Catalyst for converting nitrogen oxides and method for converting nitrogen oxides in exhaust gases by using said catalyst | 
| JPS6052856B2 (ja) * | 1975-09-05 | 1985-11-21 | 株式会社神戸製鋼所 | 固定燃焼装置よりの排ガス中に含まれる窒素酸化物の除去法 | 
| JPS5231969A (en) * | 1975-09-05 | 1977-03-10 | Kobe Steel Ltd | Removing method of nitrogen oxide contained in waste gas from fixed bu rning eqipment | 
| FR2327814A1 (fr) * | 1975-10-15 | 1977-05-13 | Hitachi Ltd | Procede pour traiter par catalyse un gaz d'echappement renfermant de l'ammoniac gazeux et de l'oxygene gazeux. | 
| US4096184A (en) * | 1976-01-19 | 1978-06-20 | Sumitomo Chemical Company, Limited | Process for preparing acid amides | 
| US4140654A (en) * | 1976-04-16 | 1979-02-20 | Mitsui Petrochemical Industries Ltd. | Catalyst composition with support comprising titanium oxide and clay mineral for vapor phase reduction of nitrogen oxides | 
| US4188365A (en) * | 1976-04-16 | 1980-02-12 | Mitsui Petrochemical Industries, Ltd. | Process for catalytic vapor phase reduction of nitrogen oxides and catalyst composition used therefor | 
| JPS52147587A (en) * | 1976-06-02 | 1977-12-08 | Ishikawajima Harima Heavy Ind Co Ltd | No# removal catalyst | 
| US4186109A (en) * | 1976-09-30 | 1980-01-29 | Mitsubishi Jukogyo Kabushiki Kaisha | Catalyst for selectively reducing nitrogen oxides from oxygen-containing exhaust gases | 
| JPS5456072A (en) * | 1977-10-13 | 1979-05-04 | Kawasaki Heavy Ind Ltd | Denitrating method for exhaust combustion gas | 
| US4229374A (en) * | 1977-10-17 | 1980-10-21 | Shell Oil Company | Amine process using Cu-Sn-Na catalyst | 
| US4293443A (en) * | 1978-03-30 | 1981-10-06 | Standard Oil Company | Oxidation catalysts | 
| US4234461A (en) * | 1978-03-30 | 1980-11-18 | Standard Oil Company (Ohio) | Oxidation catalysts | 
| US4225465A (en) * | 1978-05-02 | 1980-09-30 | Standard Oil Company (Ohio) | Production of maleic anhydride from four-carbon hydrocarbons using catalysts prepared by hydrothermal techniques | 
| IT1193930B (it) * | 1980-04-02 | 1988-08-31 | Alusuisse Italia Spa | Catalizzatore per la fabbricazione di anidride ftalica | 
| JPS57133339A (en) * | 1981-02-10 | 1982-08-18 | Shimadzu Corp | Infrared rays system so2 analyzer | 
| JPS58128127A (ja) * | 1982-09-22 | 1983-07-30 | Mitsubishi Kakoki Kaisha Ltd | 排ガスから窒素酸化物を除去する方法 | 
| DE3643605C1 (de) * | 1986-12-19 | 1988-07-14 | Otto Feuerfest Gmbh | Traegerkatalysator,Verfahren zu seiner Herstellung und seine Verwendung zur Reduktion von Stickoxiden | 
| US4929586A (en) * | 1988-06-09 | 1990-05-29 | W. R. Grace & Co.-Conn. | Catalysts for selective catalytic reduction DeNOx technology | 
| US4975256A (en) * | 1988-06-09 | 1990-12-04 | W. R. Grace & Co.-Conn. | Process using catalysts for selective catalytic reduction denox technology | 
| US4962075A (en) * | 1988-12-05 | 1990-10-09 | Mobil Oil Corp. | Zeolitic copper catalyst | 
| FR2642987A1 (fr) * | 1989-02-10 | 1990-08-17 | Centre Nat Rech Scient | Reduction catalytique de composes azotes | 
| SU1822529A3 (ru) * | 1991-06-17 | 1995-02-27 | Институт катализа СО РАН | Катализатор для очистки отходящих промышленных газов по реакции клауса | 
| DE19782282T1 (de) | 1997-07-10 | 2000-09-21 | Sk Corp | Selektive katalytische Reduktion zur Entfernung von Stickoxiden und zugehöriger Katalysatorkörper | 
| JP3643676B2 (ja) * | 1997-07-16 | 2005-04-27 | 三菱重工業株式会社 | ボイラ排ガスの油田への圧入方法 | 
| RU2179954C1 (ru) * | 2000-06-22 | 2002-02-27 | Стремилова Нина Николаевна | Композиция для очистки природных и сточных вод и способ получения композиции для очистки природных и сточных вод (варианты) | 
| CN101500693A (zh) * | 2006-08-15 | 2009-08-05 | 出光兴产株式会社 | 一氧化二氮的分解方法 | 
| CN101687143B (zh) * | 2007-01-31 | 2013-01-02 | 巴斯福催化剂公司 | 包含多孔壁蜂窝体的气体催化剂 | 
| US8524185B2 (en) | 2008-11-03 | 2013-09-03 | Basf Corporation | Integrated SCR and AMOx catalyst systems | 
| US8293182B2 (en) | 2010-05-05 | 2012-10-23 | Basf Corporation | Integrated SCR and AMOx catalyst systems | 
| WO2011140248A2 (en) | 2010-05-05 | 2011-11-10 | Basf Corporation | Catalyzed soot filter and emissions treatment systems and methods | 
| WO2015172000A1 (en) | 2014-05-09 | 2015-11-12 | Johnson Matthey Public Limited Company | Ammonia slip catalyst having platinum impregnated on high porosity substrates | 
| DE102015209987A1 (de) | 2014-06-04 | 2015-12-10 | Johnson Matthey Public Limited Company | Nicht-PGM-Ammoniakschlupfkatalysator | 
| US9649596B2 (en) | 2014-07-02 | 2017-05-16 | Johnson Matthey Public Limited Company | Perovskite with an ovlerlayer SCR component as an ammonia oxidation catalyst and a system for exhaust emission control on diesel engines | 
| BR112017010317B1 (pt) | 2014-11-19 | 2022-06-28 | Johnson Matthey Public Limited Company | Artigo catalisador, e, revestimento reativo catalítico | 
| JP5869169B1 (ja) * | 2015-06-01 | 2016-02-24 | 公立大学法人大阪府立大学 | 酸素発生反応用ペロブスカイト酸化物触媒 | 
| WO2016205441A1 (en) | 2015-06-18 | 2016-12-22 | Johnson Matthey Public Limited Company | Nh3 overdosing-tolerant scr catalyst | 
| US10201807B2 (en) | 2015-06-18 | 2019-02-12 | Johnson Matthey Public Limited Company | Ammonia slip catalyst designed to be first in an SCR system | 
| CN107847924B (zh) | 2015-06-18 | 2021-04-06 | 庄信万丰股份有限公司 | 具有低n2o形成的氨泄漏催化剂 | 
| US9937489B2 (en) | 2015-06-18 | 2018-04-10 | Johnson Matthey Public Limited Company | Exhaust system without a DOC having an ASC acting as a DOC in a system with an SCR catalyst before the ASC | 
| JP6787935B2 (ja) | 2015-06-18 | 2020-11-18 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニーJohnson Matthey Public Limited Company | 単一層又は二層アンモニアスリップ触媒 | 
| RU2019139697A (ru) | 2015-06-18 | 2020-01-10 | Джонсон Мэтти Паблик Лимитед Компани | Зонированная система выпуска отработавших газов | 
| BR112018006174A2 (pt) | 2015-09-29 | 2018-10-09 | Johnson Matthey Plc | composição, filtro catalítico, sistema e método para tratar um gás de escape de queima pobre, usos de um filtro catalítico e de uma composição, e, métodos para melhorar a combustão de fuligem, para reduzir a suscetibilidade de um catalisador de scr contido em um filtro à deterioração, para diminuir a temperatura de combustão de fuligem, para melhorar a resistência de um catalisador de scr e para coletar material particulado do gás de escape emitido de um motor. | 
| US10105692B2 (en) | 2015-09-29 | 2018-10-23 | Johnson Matthey Public Limited Company | Zoned ammonia slip catalyst for use in combustion turbines | 
| GB2556187A (en) | 2016-09-22 | 2018-05-23 | Johnson Matthey Plc | Ruthenium supported on supports having a rutile phase as stable catalysts for NH3-SLIP applications | 
| KR102471297B1 (ko) | 2016-10-24 | 2022-11-29 | 바스프 코포레이션 | NOx 저감용 통합 SCR 촉매 및 LNT | 
| GB2556453A (en) | 2016-10-26 | 2018-05-30 | Johnson Matthey Plc | Hydrocarbon injection through small pore CU-zeolite catalyst | 
| GB2562161A (en) | 2017-03-20 | 2018-11-07 | Johnson Matthey Plc | Rear on-wall design SCRF | 
| GB2562160B (en) | 2017-03-20 | 2021-06-23 | Johnson Matthey Plc | Catalytic wall-flow filter with an ammonia slip catalyst | 
| WO2019042911A1 (en) | 2017-08-29 | 2019-03-07 | Rhodia Operations | USE OF A MIXED OXIDE TO ABSORB NOX | 
| WO2019159151A1 (en) | 2018-02-19 | 2019-08-22 | Basf Corporation | Exhaust gas treatment system with upstream scr catalyst | 
| JP7462563B2 (ja) | 2018-03-14 | 2024-04-05 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | in-situでのPt固定によるアンモニアスリップ触媒 | 
| WO2020038222A1 (en) | 2018-08-24 | 2020-02-27 | Rhodia Operations | A microporous aluminotitanosilicate crystalline zeolite, method of preparation and applications thereof | 
| WO2021116683A1 (en) | 2019-12-10 | 2021-06-17 | Johnson Matthey Public Limited Company | Zoned ammonia slip catalyst for improved selectivity, activity and poison tolerance | 
| WO2021126935A1 (en) | 2019-12-19 | 2021-06-24 | Basf Corporation | Exhaust treatment system for ammonia-fueled vehicles | 
| CN115023285A (zh) | 2020-03-31 | 2022-09-06 | 庄信万丰股份有限公司 | 具有原位Pt固定的氨漏失催化剂 | 
| CN116829245A (zh) | 2021-02-02 | 2023-09-29 | 巴斯夫公司 | 用于减少来自移动汽油应用的氨排放物的排气处理系统 | 
| EP4511157A1 (en) | 2022-06-17 | 2025-02-26 | BASF Mobile Emissions Catalysts LLC | Exhaust treatment system for ammonia-fueled vehicles | 
| EP4378566A1 (en) | 2022-11-29 | 2024-06-05 | Johnson Matthey Public Limited Company | Improved catalytic wall-flow filter | 
| CN120476019A (zh) | 2022-12-21 | 2025-08-12 | 巴斯夫公司 | 用于汽油应用的具有分区scr入口和pgm出口的氨氧化催化剂 | 
| WO2024161111A1 (en) | 2023-01-30 | 2024-08-08 | Johnson Matthey Public Limited Company | System comprising h2-internal combustion engine and exhaust system therefor | 
| WO2024246488A1 (en) | 2023-06-01 | 2024-12-05 | Johnson Matthey Public Limited Company | System for treating an exhaust gas | 
| US20250146433A1 (en) | 2023-11-06 | 2025-05-08 | Johnson Matthey Public Limited Company | Catalytic partial wall-flow filter | 
| WO2025114689A1 (en) | 2023-11-28 | 2025-06-05 | Johnson Matthey Public Limited Company | Dual-filter exhaust gas treatment system | 
| WO2025120310A1 (en) | 2023-12-05 | 2025-06-12 | Johnson Matthey Public Limited Company | High transition metal loading for ammonia slip catalyst | 
| WO2025125817A1 (en) | 2023-12-15 | 2025-06-19 | Johnson Matthey Public Limited Company | Ammonia slip catalyst | 
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| GB662460A (en) * | 1949-02-17 | 1951-12-05 | Dirk Willem Van Krevelen | Process for the removal of carbon monoxide from a gas mixture containing carbon monoxide and nitric oxide | 
| US3008796A (en) * | 1958-06-05 | 1961-11-14 | Engelhard Ind Inc | Method of purifying gases containing oxygen and oxides of nitrogen | 
| US3249558A (en) * | 1962-08-31 | 1966-05-03 | Exxon Research Engineering Co | Method for the preparation of vanadium catalysts | 
| US3279884A (en) * | 1963-10-31 | 1966-10-18 | Basf Ag | Selective removal of oxides of nitrogen from gas mixtures containing oxygen | 
| US3476508A (en) * | 1965-10-27 | 1969-11-04 | Exxon Research Engineering Co | Catalytic purification treatment of exhaust gas | 
| US3449063A (en) * | 1966-05-13 | 1969-06-10 | Ethyl Corp | Method of controlling exhaust emission | 
| FR1504331A (fr) * | 1966-11-29 | 1967-12-01 | Hamburger Gaswerke Gmbh | Procédé pour l'élimination d'oxydes d'azote à partir de tous les gaz | 
| US3513109A (en) * | 1967-04-19 | 1970-05-19 | Du Pont | Process for applying catalytic coatings | 
| DE1135429B (de) * | 1969-06-16 | 1962-08-30 | Engelhard Ind Inc | Verfahren zur Reinigung von Abgasen, die Oxyde des Stickstoffs und Sauerstoff enthalten | 
| GB1390182A (en) * | 1971-03-16 | 1975-04-09 | Johnson Matthey Co Ltd | Catalysis | 
| JPS5432753B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-11-22 | 1979-10-16 | ||
| JPS48101975A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-04-05 | 1973-12-21 | ||
| GB1438120A (en) * | 1972-09-01 | 1976-06-03 | Exxon Research Engineering Co | Removal of nitrogen oxides from flue gas | 
| CA1002732A (en) * | 1972-12-27 | 1977-01-04 | Neville L. Cull | Removal of nitrogen oxides using coated catalyst | 
| NL7805366A (nl) * | 1978-05-18 | 1979-11-20 | Philips Nv | Gereedschap voor de hantering en vormgeving van glas. | 
- 
        1973
        
- 1973-03-26 JP JP3484573A patent/JPS5523086B2/ja not_active Expired
 
 - 
        1974
        
- 1974-03-19 US US05/452,659 patent/US4010238A/en not_active Expired - Lifetime
 - 1974-03-22 FR FR7409945A patent/FR2223072B1/fr not_active Expired
 - 1974-03-25 GB GB1312074A patent/GB1466789A/en not_active Expired
 - 1974-03-25 IT IT67946/74A patent/IT1024532B/it active
 - 1974-03-25 DE DE2414333A patent/DE2414333C3/de not_active Expired
 
 
Also Published As
| Publication number | Publication date | 
|---|---|
| FR2223072B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-01-06 | 
| DE2414333A1 (de) | 1974-10-03 | 
| FR2223072A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-10-25 | 
| IT1024532B (it) | 1978-07-20 | 
| JPS5523086B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-06-20 | 
| JPS49122473A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-11-22 | 
| US4010238A (en) | 1977-03-01 | 
| DE2414333C3 (de) | 1981-09-10 | 
| DE2414333B2 (de) | 1980-11-13 | 
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Legal Events
| Date | Code | Title | Description | 
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PE20 | Patent expired after termination of 20 years | 
             Effective date: 19940324  |