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 catalyse

Info

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Withdrawn
Application number
EP11731313.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Julien Hernandez
Rui Jorge Coelho Marques
Emmanuel Rohart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodia Operations SAS
Original Assignee
Rhodia Operations SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rhodia Operations SAS filed Critical Rhodia Operations SAS
Publication of EP2590737A1 publication Critical patent/EP2590737A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00Compounds of rare earth metals
    • C01F17/20Compounds containing only rare earth metals as the metal element
    • C01F17/206Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
    • C01F17/224Oxides or hydroxides of lanthanides
    • C01F17/235Cerium oxides or hydroxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts 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
    • B01J23/20Vanadium, niobium or tantalum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • B01D53/8628Processes characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002Mixed oxides other than spinels, e.g. perovskite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/03Precipitation; Co-precipitation
    • B01J37/031Precipitation
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00Compounds of rare earth metals
    • C01F17/30Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00Compounds of zirconium
    • C01G25/02Oxides
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G33/00Compounds of niobium
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G33/00Compounds of niobium
    • C01G33/006Compounds containing, besides niobium, two or more other elements, with the exception of oxygen or hydrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/206Rare earth metals
    • B01D2255/2065Cerium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20715Zirconium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00Constitutive chemical elements of heterogeneous catalysts
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • C01P2006/13Surface area thermal stability thereof at high temperatures
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00Capture or disposal of greenhouse gases
    • Y02C20/10Capture 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)
EP11731313.0A 2010-07-07 2011-07-05 Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catalyse Withdrawn EP2590737A1 (fr)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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