EP2590737A1 - Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catalyse - Google Patents
Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catalyseInfo
- Publication number
- EP2590737A1 EP2590737A1 EP11731313.0A EP11731313A EP2590737A1 EP 2590737 A1 EP2590737 A1 EP 2590737A1 EP 11731313 A EP11731313 A EP 11731313A EP 2590737 A1 EP2590737 A1 EP 2590737A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxide
- composition according
- cerium
- solution
- niobium
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/224—Oxides or hydroxides of lanthanides
- C01F17/235—Cerium oxides or hydroxides
-
- 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
-
- 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
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/031—Precipitation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/30—Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/02—Oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G33/00—Compounds of niobium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G33/00—Compounds of niobium
- C01G33/006—Compounds containing, besides niobium, two or more other elements, with the exception of oxygen or hydrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
- B01D2255/2065—Cerium
-
- 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
- B01D2255/20715—Zirconium
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
- C01P2006/13—Surface area thermal stability thereof at high temperatures
-
- 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
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (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)
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1002859A FR2962431B1 (fr) | 2010-07-07 | 2010-07-07 | Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catlyse. |
PCT/EP2011/061313 WO2012004263A1 (fr) | 2010-07-07 | 2011-07-05 | Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catalyse |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2590737A1 true EP2590737A1 (fr) | 2013-05-15 |
Family
ID=43447009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11731313.0A Withdrawn EP2590737A1 (fr) | 2010-07-07 | 2011-07-05 | Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catalyse |
Country Status (10)
Country | Link |
---|---|
US (2) | US20130210617A1 (ja) |
EP (1) | EP2590737A1 (ja) |
JP (1) | JP5902158B2 (ja) |
KR (1) | KR101594227B1 (ja) |
CN (1) | CN102958603B (ja) |
CA (1) | CA2800653C (ja) |
FR (1) | FR2962431B1 (ja) |
RU (1) | RU2551381C2 (ja) |
WO (1) | WO2012004263A1 (ja) |
ZA (1) | ZA201209448B (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5771267B2 (ja) * | 2010-04-20 | 2015-08-26 | 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Umicore AG & Co.KG | 排気ガス中の窒素酸化物の選択触媒還元のための新規な混合酸化物材料 |
FR2965189A1 (fr) * | 2010-09-29 | 2012-03-30 | Rhodia Operations | Procede de traitement d'un gaz contenant des oxydes d'azote (nox) utilisant comme catalyseur une composition a base d'oxyde de cerium et d'oxyde de niobium |
FR2972366B1 (fr) * | 2011-03-08 | 2016-01-15 | Rhodia Operations | Procede de traitement d'un gaz contenant des oxydes d'azote (nox) utilisant comme catalyseur une composition a base de zirconium, de cerium et de niobium |
CN104755427B (zh) * | 2012-10-08 | 2017-02-15 | 株式会社三德 | 用于制备复合氧化物的方法和复合氧化物催化剂 |
FR3003557B1 (fr) * | 2013-03-19 | 2015-05-01 | Rhodia Operations | Composition a base d'oxyde de zirconium, de cerium, de niobium et d'etain, procede de preparation et utilisation en catalyse |
JP6514112B2 (ja) * | 2013-12-09 | 2019-05-15 | 株式会社キャタラー | 排ガス浄化用触媒 |
KR20160104701A (ko) | 2013-12-30 | 2016-09-05 | 존슨 맛쎄이 퍼블릭 리미티드 컴파니 | 도핑된 세리아를 사용한 선택적 촉매 환원 과정 |
KR102350893B1 (ko) * | 2014-06-24 | 2022-01-13 | 로디아 오퍼레이션스 | 금속 도핑된 세륨 산화물 조성물 |
JP6180032B2 (ja) * | 2014-08-04 | 2017-08-16 | 株式会社豊田中央研究所 | 複合金属酸化物及びその製造方法、並びに、その複合金属酸化物を用いた窒素酸化物分解触媒及びその窒素酸化物分解触媒を用いた窒素酸化物の分解方法 |
CN104368329B (zh) * | 2014-09-19 | 2017-03-15 | 中国科学院生态环境研究中心 | 一种铈铌锆复合氧化物催化剂、制备方法及其用途 |
JP6797935B2 (ja) * | 2016-04-26 | 2020-12-09 | ローディア オペレーションズ | セリウムとジルコニウムとをベースとする混合酸化物 |
US11433376B2 (en) | 2017-05-11 | 2022-09-06 | Rhodia Operations | Mixed oxide with enhanced resistance and NOx storage capacity |
EP3482824A1 (de) | 2017-11-14 | 2019-05-15 | Umicore Ag & Co. Kg | Scr-katalysator |
EP3482825A1 (de) | 2017-11-14 | 2019-05-15 | Umicore Ag & Co. Kg | Scr-katalysator |
FR3077567A1 (fr) | 2018-02-02 | 2019-08-09 | Rhodia Operations | Procede de preparation d'un oxyde a base de cerium et/ou de zirconium |
FR3077566A1 (fr) | 2018-02-02 | 2019-08-09 | Rhodia Operations | Procede de preparation d'un oxyde a base de cerium et/ou de zirconium |
JP7278159B2 (ja) * | 2019-07-01 | 2023-05-19 | 三井金属鉱業株式会社 | 炭化水素部分酸化触媒 |
CN115379893A (zh) * | 2020-04-14 | 2022-11-22 | 凯洛格·布朗及鲁特有限公司 | 用于c5-c12链烷烃异构化的催化剂制造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012041921A2 (fr) * | 2010-09-29 | 2012-04-05 | Rhodia Operations | Procede de traitement d'un gaz contenant des oxydes d'azote (nox) utilisant comme catalyseur une composition a base d'oxyde de cerium et d'oxyde de niobium |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2559754A1 (fr) | 1984-02-20 | 1985-08-23 | Rhone Poulenc Spec Chim | Oxyde cerique a nouvelles caracteristiques morphologiques et son procede d'obtention |
FR2584388B1 (fr) | 1985-07-03 | 1991-02-15 | Rhone Poulenc Spec Chim | Composition a base d'oxyde cerique, sa preparation et ses utilisations |
FR2617154B1 (fr) | 1987-06-29 | 1990-11-30 | Rhone Poulenc Chimie | Procede d'obtention d'oxyde cerique et oxyde cerique a nouvelles caracteristiques morphologiques |
FR2640954B1 (ja) | 1988-12-23 | 1991-03-29 | Rhone Poulenc Chimie | |
FR2684662B1 (fr) | 1991-12-09 | 1994-05-06 | Rhone Poulenc Chimie | Composition a base d'oxyde cerique, preparation et utilisation. |
FR2695574B1 (fr) | 1992-09-15 | 1994-11-04 | Rhone Poulenc Chimie | Composition à base d'oxyde cérique, préparation et utilisation. |
FR2699524B1 (fr) | 1992-12-21 | 1995-02-10 | Rhone Poulenc Chimie | Composition à base d'un oxyde mixte de cérium et de zirconium, préparation et utilisation. |
FR2714370B1 (fr) | 1993-12-24 | 1996-03-08 | Rhone Poulenc Chimie | Précurseur d'une composition et composition à base d'un oxyde mixte de cérium et de zirconium, procédé de préparation et utilisation. |
FR2736343B1 (fr) | 1995-07-03 | 1997-09-19 | Rhone Poulenc Chimie | Composition a base d'oxyde de zirconium et d'oxyde de cerium, procede de preparation et utilisation |
FR2748740B1 (fr) | 1996-05-15 | 1998-08-21 | Rhone Poulenc Chimie | Composition a base d'oxyde de cerium et d'oxyde de zirconium a haute surface specifique et a capacite elevee de stockage d'oxygene, procede de preparation et utilisation en catalyse |
US5898014A (en) * | 1996-09-27 | 1999-04-27 | Engelhard Corporation | Catalyst composition containing oxygen storage components |
JP4290240B2 (ja) * | 1998-05-27 | 2009-07-01 | ジョンソン・マッセイ・ジャパン・インコーポレイテッド | 排気ガス浄化用触媒および排気ガス浄化方法 |
US6468941B1 (en) * | 2000-10-17 | 2002-10-22 | Delphi Technologies, Inc. | Niobium containing zirconium-cerium based soild solutions |
JP2003155448A (ja) * | 2001-11-21 | 2003-05-30 | Sumitomo Metal Mining Co Ltd | 二液型光触媒塗料及び光触媒含有塗膜、光触媒含有塗膜の形成方法 |
US20030186805A1 (en) * | 2002-03-28 | 2003-10-02 | Vanderspurt Thomas Henry | Ceria-based mixed-metal oxide structure, including method of making and use |
FR2852596B1 (fr) | 2003-03-18 | 2007-02-23 | Rhodia Elect & Catalysis | Composition a base d'oxydes de cerium et de zirconium a surface specifique stable entre 900 c et 1000 c, son procede de preparation et son utilisation comme catalyseur |
FR2852592B1 (fr) | 2003-03-18 | 2007-02-23 | Rhodia Elect & Catalysis | Compositions a base d'un oxyde de cerium, d'un oxyde de zirconium et, eventuellement d'un oxyde d'une autre terre rare, a surface specifique elevee a 1100 c, leur procede de preparation et leur utilisation comme catalyseur |
FR2859470B1 (fr) | 2003-09-04 | 2006-02-17 | Rhodia Elect & Catalysis | Composition a base d'oxyde de cerium et d'oxyde de zirconium a reductibilite et surface elevees, procede de preparation et utilisation comme catalyseur |
US7964527B2 (en) | 2006-02-17 | 2011-06-21 | Rhodia Operations | Catalytic compositions comprising the oxides of zirconium, cerium, yttrium, lanthanum and other rare earths |
FR2898887B1 (fr) * | 2006-03-21 | 2008-05-02 | Rhodia Recherches & Tech | Composition a base d'oxyde de zirconium et d'oxyde de cerium a reductibilite elevee et a surface specifique stable procede de preparation et utilisation dans le traitement des gaz d'echappement |
FR2917646B1 (fr) | 2007-06-20 | 2011-06-03 | Anan Kasei Co Ltd | Oxyde mixte a haute surface specifique de cerium et d'autre terre rare, procede de preparation et utilisation en catalyse |
FR2930456B1 (fr) * | 2008-04-23 | 2010-11-19 | Rhodia Operations | Composition a base d'oxydes de zirconium, de cerium et d'yttrium, a reductibilite elevee, procedes de preparation et utilisation en catalyse |
RU2468862C1 (ru) * | 2008-11-21 | 2012-12-10 | Ниссан Мотор Ко., Лтд. | Очищающий от дисперсных частиц материал, фильтр-катализатор для очистки от дисперсных частиц с использованием очищающего от дисперсных частиц материала и способ регенерирования фильтра-катализатора для очистки от дисперсных частиц |
-
2010
- 2010-07-07 FR FR1002859A patent/FR2962431B1/fr not_active Expired - Fee Related
-
2011
- 2011-07-05 RU RU2013104982/04A patent/RU2551381C2/ru active
- 2011-07-05 CN CN201180032153.9A patent/CN102958603B/zh not_active Expired - Fee Related
- 2011-07-05 JP JP2013517360A patent/JP5902158B2/ja not_active Expired - Fee Related
- 2011-07-05 WO PCT/EP2011/061313 patent/WO2012004263A1/fr active Application Filing
- 2011-07-05 KR KR1020137000237A patent/KR101594227B1/ko active IP Right Grant
- 2011-07-05 CA CA2800653A patent/CA2800653C/fr not_active Expired - Fee Related
- 2011-07-05 US US13/808,804 patent/US20130210617A1/en not_active Abandoned
- 2011-07-05 EP EP11731313.0A patent/EP2590737A1/fr not_active Withdrawn
-
2012
- 2012-12-12 ZA ZA2012/09448A patent/ZA201209448B/en unknown
-
2020
- 2020-07-20 US US16/933,954 patent/US20210016251A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012041921A2 (fr) * | 2010-09-29 | 2012-04-05 | Rhodia Operations | Procede de traitement d'un gaz contenant des oxydes d'azote (nox) utilisant comme catalyseur une composition a base d'oxyde de cerium et d'oxyde de niobium |
Non-Patent Citations (3)
Title |
---|
DE GUIRE M R ET AL: "Point defect analysis and microstructural effects in pure and donor-doped ceria", SOLID STATE IONICS, NORTH HOLLAND PUB. COMPANY. AMSTERDAM; NL, NL, vol. 52, no. 1-3, 1 May 1992 (1992-05-01), pages 155 - 163, XP025754220, ISSN: 0167-2738, [retrieved on 19920501], DOI: 10.1016/0167-2738(92)90101-T * |
E RAMIREZ-CABRERA ET AL: "Reactivity of ceria, Gd- and Nb-doped ceria to methane", APPLIED CATALYSIS B: ENVIRONMENTAL, vol. 36, no. 3, 1 March 2002 (2002-03-01), AMSTERDAM, NL, pages 193 - 206, XP055493283, ISSN: 0926-3373, DOI: 10.1016/S0926-3373(01)00299-5 * |
See also references of WO2012004263A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP5902158B2 (ja) | 2016-04-13 |
ZA201209448B (en) | 2013-08-28 |
KR101594227B1 (ko) | 2016-02-15 |
FR2962431A1 (fr) | 2012-01-13 |
FR2962431B1 (fr) | 2018-01-19 |
CN102958603A (zh) | 2013-03-06 |
RU2013104982A (ru) | 2014-08-20 |
CA2800653A1 (fr) | 2012-01-12 |
US20210016251A1 (en) | 2021-01-21 |
JP2013530122A (ja) | 2013-07-25 |
CA2800653C (fr) | 2017-03-28 |
CN102958603B (zh) | 2016-01-20 |
KR20130041069A (ko) | 2013-04-24 |
WO2012004263A1 (fr) | 2012-01-12 |
RU2551381C2 (ru) | 2015-05-20 |
US20130210617A1 (en) | 2013-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2800653C (fr) | Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catalyse | |
EP2288426B1 (fr) | Compositions catalytiques à base d'oxydes de zirconium, de cerium et d'yttrium et leurs utilisations pour les traitement des gaz d'échappement. | |
EP1991354B1 (fr) | Composition a base d'oxydes de zirconium, de cerium, d'yttrium, de lanthane et d'une autre terre rare, procede de preparation et utilisation en catalyse | |
EP2024084B1 (fr) | Composition a base d'oxydes de zirconium, de cerium, de lanthane et d'yttrium, de gadolinium ou de samarium, a surface specifique et reductibilite elevees, et utilisation comme catalyseur | |
EP2059339B1 (fr) | Composition a réductibilité élevée à base d'un oxyde de cérium nanométrique sur un support, procédé de préparation et utilisation comme catalyseur | |
EP2566617B1 (fr) | Composition a base d'oxydes de zirconium, de cerium et d'au moins une autre terre rare, a porosite specifique, procede de preparation et utilisation en catalyse | |
EP2454196B1 (fr) | Composition a base d'oxyde de cerium et d'oxyde de zirconium de porosite specifique, procede de preparation et utilisation en catalyse | |
CA2645588C (fr) | Composition a base d'oxyde de zirconium et d'oxyde de cerium a reductibilite elevee et a surface specifique stable, procede de preparation et utilisation dans le traitement des gaz d'echappement | |
CA2807665C (fr) | Procede de traitement d'un gaz contenant des oxydes d'azote (nox) utilisant comme catalyseur une composition a base d'oxyde de cerium et d'oxyde de niobium | |
EP1660406B1 (fr) | Composition a base d 'oxyde de cerium et d 'oxyde de zirconium a conductibilite et surface elevees, procedes de preparation et utilisation comme catalyseur | |
EP2976300B1 (fr) | Composition a base d'oxydes de zirconium, de cerium, de niobium et d'etain, procedes de preparation et utilisation en catalyse | |
EP2720980B1 (fr) | Composition à base d'oxydes de cérium, de zirconium et d'une autre terre rare à réductibilité élevée, procédé de préparation et utilisation dans le domaine de la catalyse | |
EP2646370B1 (fr) | Composition a base d'oxyde de zirconium et d'au moins un oxyde d'une terre rare autre que le cerium, a porosite specifique, son procede de preparation et son utilisation en catalyse | |
WO2007031627A1 (fr) | Procede de traitement d'un gaz contenant des oxydes d'azote (nox), utilisant comme piege a nox une composition a base d'oxyde de zirconium et d'oxyde de praseodyme | |
EP2694204A1 (fr) | Composition a base d'oxydes de zirconium, de cerium, d'au moins une terre rare autre que le cerium et de silicium, procedes de preparation et utilisation en catalyse |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20130110 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20170601 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: RHODIA OPERATIONS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20210608 |