JPS6146175B2 - - Google Patents
Info
- Publication number
- JPS6146175B2 JPS6146175B2 JP54064475A JP6447579A JPS6146175B2 JP S6146175 B2 JPS6146175 B2 JP S6146175B2 JP 54064475 A JP54064475 A JP 54064475A JP 6447579 A JP6447579 A JP 6447579A JP S6146175 B2 JPS6146175 B2 JP S6146175B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- carrier
- sintered body
- oxide
- catalysts
- 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
- 239000003054 catalyst Substances 0.000 claims description 50
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 30
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 18
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 16
- 238000000746 purification Methods 0.000 claims description 16
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 13
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052763 palladium Inorganic materials 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 2
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 2
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 2
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical compound [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 241000264877 Hippospongia communis Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 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
- B01D53/34—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
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/63—Platinum group metals with rare earths or actinides
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/656—Manganese, technetium or rhenium
- B01J23/6562—Manganese
-
- 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
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8906—Iron and noble metals
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6447579A JPS55155739A (en) | 1979-05-23 | 1979-05-23 | Exhaust gas purifying catalyzer |
| US06/151,601 US4299734A (en) | 1979-05-23 | 1980-05-20 | Catalyst for purifying exhaust gases and method for producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6447579A JPS55155739A (en) | 1979-05-23 | 1979-05-23 | Exhaust gas purifying catalyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55155739A JPS55155739A (en) | 1980-12-04 |
| JPS6146175B2 true JPS6146175B2 (US20110158925A1-20110630-C00042.png) | 1986-10-13 |
Family
ID=13259284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6447579A Granted JPS55155739A (en) | 1979-05-23 | 1979-05-23 | Exhaust gas purifying catalyzer |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4299734A (US20110158925A1-20110630-C00042.png) |
| JP (1) | JPS55155739A (US20110158925A1-20110630-C00042.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63112907U (US20110158925A1-20110630-C00042.png) * | 1987-01-16 | 1988-07-20 |
Families Citing this family (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5881441A (ja) * | 1981-11-11 | 1983-05-16 | Nippon Shokubai Kagaku Kogyo Co Ltd | 排ガス浄化用触媒の製法 |
| JPS59225277A (ja) * | 1983-06-02 | 1984-12-18 | 和歌山鉄工株式会社 | 布帛処理用熱風浄化循環装置 |
| DE3340569A1 (de) * | 1983-11-09 | 1985-05-23 | Sued Chemie Ag | Katalysator zur herstellung von synthesegas bzw. von wasserstoff und verfahren zu dessen herstellung |
| FR2556236B1 (fr) * | 1983-12-09 | 1988-04-01 | Pro Catalyse | Procede de fabrication d'un catalyseur pour le traitement des gaz d'echappement |
| JPS60238147A (ja) * | 1984-05-10 | 1985-11-27 | Toyota Central Res & Dev Lab Inc | 窒素酸化物除去用触媒 |
| FR2568143B1 (fr) * | 1984-07-30 | 1986-12-05 | Prod Catalyse Ste Fse | Catalyseur et procede pour le traitement des gaz d'echappement des moteurs a combustion interne |
| JPH064133B2 (ja) * | 1986-01-20 | 1994-01-19 | 株式会社豊田中央研究所 | ジルコニア担体 |
| JPS6434443A (en) * | 1987-07-14 | 1989-02-03 | Lonza Ag | Catalyst for oxidizing carbon compound |
| DE3803122C1 (US20110158925A1-20110630-C00042.png) * | 1988-02-03 | 1989-07-13 | Degussa Ag, 6000 Frankfurt, De | |
| US4921830A (en) * | 1988-04-13 | 1990-05-01 | Phillips Petroleum Company | Catalyst for the oxidation of carbon monoxide |
| DE3824822A1 (de) * | 1988-07-21 | 1990-01-25 | Bayer Ag | Ruthenium-traegerkatalysator, seine herstellung und sein einsatz bei der herstellung von gegebenenfalls substituiertem cyclohexylamin und gegebenenfalls substituiertem dicyclohexylamin |
| CA2011484C (en) * | 1989-04-19 | 1997-03-04 | Joseph C. Dettling | Palladium-containing, ceria-supported platinum catalyst and catalyst assembly including the same |
| US5137703A (en) * | 1989-06-26 | 1992-08-11 | Trustees Of Boston University | Thermal catalytic methods for converting oxides of nitrogen into environmentally compatible products |
| GB2234450A (en) * | 1989-07-25 | 1991-02-06 | Uop Ltd | Low temperature oxidation catalysts |
| US5258340A (en) * | 1991-02-15 | 1993-11-02 | Philip Morris Incorporated | Mixed transition metal oxide catalysts for conversion of carbon monoxide and method for producing the catalysts |
| US5212142A (en) * | 1991-11-04 | 1993-05-18 | Engelhard Corporation | High performance thermally stable catalyst |
| US5578283A (en) * | 1994-12-30 | 1996-11-26 | Engelhard Corporation | Catalytic oxidation catalyst and method for controlling VOC, CO and halogenated organic emissions |
| EP0727248B1 (en) * | 1995-02-17 | 1998-08-19 | ICT Co., Ltd. | Catalyst for purification of diesel engine exhaust gas |
| US6548032B1 (en) | 1995-09-20 | 2003-04-15 | Rhodia Chimie | Process for the treatment of gases with high oxygen content, with a view to controlling nitrogen oxide emissions, using a catalytic composition comprising cerium oxide and/or zirconium oxide |
| US5846504A (en) * | 1996-09-25 | 1998-12-08 | Davis; Robert Ora | Emission control device for preventing organic compounds emissions |
| GB9800325D0 (en) * | 1998-01-09 | 1998-03-04 | Johnson Matthey Plc | Improvements in catalytic materials |
| EP1063010B1 (en) * | 1998-03-09 | 2008-07-02 | Osaka Gas Company Limited | Method for removing methane from exhaust gas |
| US6492298B1 (en) * | 1999-03-29 | 2002-12-10 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Ordinary-temperature purifying catalyst |
| US6103207A (en) * | 1999-04-26 | 2000-08-15 | Ford Global Technologies, Inc. | Treating diesel exhaust with a catalytic particulate mixture |
| DE10034045A1 (de) * | 2000-07-13 | 2002-01-31 | Schumacher Umwelt Trenntech | Keramisches Filterelement und Verfahren zu seiner Herstellung |
| US20040147394A1 (en) * | 2002-03-28 | 2004-07-29 | Wagner Jon P. | Catalyst for production of hydrogen |
| JP2007512133A (ja) * | 2003-11-24 | 2007-05-17 | ダウ グローバル テクノロジーズ インコーポレイティド | ディーゼル微粒子フィルター用触媒 |
| WO2005068390A1 (en) * | 2004-01-09 | 2005-07-28 | Moltech Invent S.A. | Ceramic material for use at elevated temperature |
| DE102004005997A1 (de) * | 2004-02-06 | 2005-09-01 | Hte Ag The High Throughput Experimentation Company | Mit Eisenoxid stabilisierter Edelmetall-Katalysator zur Entfernung von Schadstoffen aus Abgasen von Mager-Motoren |
| CN1921937B (zh) * | 2004-02-19 | 2011-07-27 | 出光兴产株式会社 | 烃的重整催化剂、利用该重整催化剂生产氢的方法以及燃料电池系统 |
| FR2889248B1 (fr) * | 2005-07-29 | 2007-09-07 | Inst Francais Du Petrole | Nouvelle masse active oxydo-reductrice pour un procede d'oxydo-reduction en boucle |
| US20070128499A1 (en) * | 2005-11-18 | 2007-06-07 | Campbell Stephen A | Catalyst for fuel cells |
| US7399458B1 (en) | 2005-11-18 | 2008-07-15 | Callidus Technologies Inc. | Fired equipment with catalytic converter and method of operating same |
| US8530372B2 (en) * | 2009-07-22 | 2013-09-10 | Basf Corporation | Oxygen storage catalyst with decreased ceria reduction temperature |
| JP5769666B2 (ja) * | 2012-06-04 | 2015-08-26 | 株式会社豊田中央研究所 | 排ガス浄化用触媒 |
| CN104707623A (zh) * | 2013-12-16 | 2015-06-17 | 裴振昭 | 一种制备甲烷催化燃烧催化剂的方法 |
| JP6521905B2 (ja) * | 2016-06-07 | 2019-05-29 | 中外炉工業株式会社 | ラジアントチューブバーナーユニット及び工業炉 |
| CN113877597B (zh) * | 2021-08-06 | 2023-10-20 | 南京工业大学 | 一种有机物污染土壤热脱附单原子催化剂及其制备方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5167278A (US20110158925A1-20110630-C00042.png) * | 1974-12-07 | 1976-06-10 | Sakai Chemical Industry Co | |
| JPS5227088A (en) * | 1975-08-27 | 1977-03-01 | Engelhard Min & Chem | Catalysts for controlling pollutants in exhaust gases and utilization thereof |
| JPS5365285A (en) * | 1976-11-24 | 1978-06-10 | Toyota Motor Corp | Exhaust gas purification catalyst for internal combustion engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1283247B (de) * | 1965-09-24 | 1968-11-21 | Degussa | Oxydationskatalysator zur Verwendung bei erhoehter Temperatur, insbesondere fuer die Reinigung von Abgasen aus Verbrennungsmotoren und Industrieanlagen |
| US3524721A (en) * | 1967-12-22 | 1970-08-18 | Ethyl Corp | Catalyst composition |
| US4171288A (en) * | 1977-09-23 | 1979-10-16 | Engelhard Minerals & Chemicals Corporation | Catalyst compositions and the method of manufacturing them |
| US4173549A (en) * | 1978-09-22 | 1979-11-06 | Dart Industries Inc. | Catalyst composition for decomposing ozone |
| US4206134A (en) * | 1979-03-12 | 1980-06-03 | Exxon Research & Engineering Co. | Ruthenium supported on manganese oxide as hydrocarbon synthesis catalysts in CO/H2 reactions |
-
1979
- 1979-05-23 JP JP6447579A patent/JPS55155739A/ja active Granted
-
1980
- 1980-05-20 US US06/151,601 patent/US4299734A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5167278A (US20110158925A1-20110630-C00042.png) * | 1974-12-07 | 1976-06-10 | Sakai Chemical Industry Co | |
| JPS5227088A (en) * | 1975-08-27 | 1977-03-01 | Engelhard Min & Chem | Catalysts for controlling pollutants in exhaust gases and utilization thereof |
| JPS5365285A (en) * | 1976-11-24 | 1978-06-10 | Toyota Motor Corp | Exhaust gas purification catalyst for internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63112907U (US20110158925A1-20110630-C00042.png) * | 1987-01-16 | 1988-07-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| US4299734A (en) | 1981-11-10 |
| JPS55155739A (en) | 1980-12-04 |
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