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IN2014DN00080A - - Google Patents

Info

Publication number
IN2014DN00080A
IN2014DN00080A IN80DEN2014A IN2014DN00080A IN 2014DN00080 A IN2014DN00080 A IN 2014DN00080A IN 80DEN2014 A IN80DEN2014 A IN 80DEN2014A IN 2014DN00080 A IN2014DN00080 A IN 2014DN00080A
Authority
IN
India
Prior art keywords
cerium
hydroxides
zirconium
solids
solid composition
Prior art date
Application number
Inventor
Karl Schermanz
Amod Sagar
Marcos Schöneborn
Reiner Glöckler
Kai Dallmann
Frank Alber
Sönke Rolfs
Original Assignee
Treibacher Ind Ag
Sasol Germany Gmbh
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
Priority claimed from DE102011107702A external-priority patent/DE102011107702A1/en
Priority claimed from EP11193944.3A external-priority patent/EP2604337A1/en
Application filed by Treibacher Ind Ag, Sasol Germany Gmbh filed Critical Treibacher Ind Ag
Publication of IN2014DN00080A publication Critical patent/IN2014DN00080A/en

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
    • B01J23/002—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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • 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
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • 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
    • B01J37/0027—Powdering
    • B01J37/0045—Drying a slurry, e.g. spray drying
    • 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
    • B01J37/0201—Impregnation
    • 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
    • B01J37/0201—Impregnation
    • B01J37/0203—Impregnation the impregnation liquid containing organic compounds
    • 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
    • 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
    • B01J37/033—Using Hydrolysis
    • 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
    • B01J37/04—Mixing
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

A process for the preparation of a calcined mixed oxide comprising Al Ce and Zr oxides comprising the steps of providing an aqueous slurry comprising hydroxides of cerium and zirconium contacting the hydroxides of cerium and zirconium with an alumina precursor to obtain an aqueous suspension of solids isolating the solids from the aqueous suspension and drying to obtain a solid composition calcining the solid composition of step (c) at a temperature from 450°C to 1200°C for at least 1 hour to obtain a calcined mixed oxide.
IN80DEN2014 2011-07-14 2012-07-13 IN2014DN00080A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011107702A DE102011107702A1 (en) 2011-07-14 2011-07-14 Process for the preparation of composites of alumina and cerium / zirconium mixed oxides
EP11193944.3A EP2604337A1 (en) 2011-12-16 2011-12-16 Ceria zirconia alumina composition with enhanced thermal stability
PCT/EP2012/063756 WO2013007809A1 (en) 2011-07-14 2012-07-13 Ceria zirconia alumina composition with enhanced thermal stability

Publications (1)

Publication Number Publication Date
IN2014DN00080A true IN2014DN00080A (en) 2015-05-15

Family

ID=46516741

Family Applications (1)

Application Number Title Priority Date Filing Date
IN80DEN2014 IN2014DN00080A (en) 2011-07-14 2012-07-13

Country Status (14)

Country Link
US (2) US9889428B2 (en)
EP (1) EP2731709B1 (en)
JP (1) JP6138777B2 (en)
KR (1) KR102033797B1 (en)
CN (2) CN106944031A (en)
BR (1) BR112014000555B1 (en)
CA (1) CA2837543A1 (en)
DK (1) DK2731709T3 (en)
IN (1) IN2014DN00080A (en)
MY (1) MY167886A (en)
PL (1) PL2731709T3 (en)
RU (1) RU2608741C2 (en)
WO (1) WO2013007809A1 (en)
ZA (1) ZA201309640B (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN2014DN00080A (en) * 2011-07-14 2015-05-15 Treibacher Ind Ag
DE102011107702A1 (en) * 2011-07-14 2013-01-17 Sasol Germany Gmbh Process for the preparation of composites of alumina and cerium / zirconium mixed oxides
EP2719454A1 (en) 2012-10-11 2014-04-16 Treibacher Industrie AG Thermostable Vanadia SCR catalyst and a process of preparation thereof
EP3006404B1 (en) * 2013-06-04 2020-07-29 Nippon Denko Co.,Ltd. Ceria-zirconia mixed oxide and method for producing same
US20140369912A1 (en) * 2013-06-13 2014-12-18 Basf Corporation Integrated Supports for Emission Control Catalysts
JP6698030B2 (en) * 2013-12-23 2020-05-27 ローディア オペレーションズ Inorganic composite oxide and method for producing the same
WO2016046129A1 (en) * 2014-09-22 2016-03-31 Treibacher Industrie Ag Thermally stable nh3-scr catalyst compositions
EP3059012A1 (en) 2015-02-17 2016-08-24 SASOL Germany GmbH Coated composites of al2o3-ceo2/zro2 and a method for their production
JP6325010B2 (en) * 2016-01-28 2018-05-16 第一稀元素化学工業株式会社 Alumina-based composite oxide and method for producing the same
WO2017185224A1 (en) * 2016-04-26 2017-11-02 Rhodia Operations Cerium-and zirconium-based mixed oxides
WO2017191434A1 (en) * 2016-05-05 2017-11-09 Johnson Matthey Public Limited Company NOx ADSORBER CATALYST
CN110366445B (en) * 2016-12-23 2023-04-04 罗地亚经营管理公司 Anti-aging mixed oxides made of cerium, zirconium, aluminum and lanthanum for catalytic converters of motor vehicles
EP3444225A4 (en) * 2017-06-30 2020-02-19 Daiichi Kigenso Kagaku Kogyo Co., Ltd. Alumina-based composite oxide and method for producing same
FR3075777A1 (en) * 2017-12-22 2019-06-28 Rhodia Operations POROUS ALUMINUM HYDRATE
US11446638B2 (en) * 2017-12-28 2022-09-20 Umicore Shokubai Japan Co., Ltd Hydrogen-producing catalyst and exhaust gas purifying catalyst using same
KR20200120916A (en) * 2018-02-15 2020-10-22 스미또모 가가꾸 가부시끼가이샤 Inorganic oxide
EP3752462A4 (en) * 2018-02-15 2021-11-17 Sumitomo Chemical Company Limited INORGANIC OXIDE
WO2020159641A1 (en) 2019-01-29 2020-08-06 Pacific Industrial Development Corporation Nanocrystal-sized cerium-zirconium-aluminum oxide material and method of making the same
CN110282643A (en) * 2019-07-12 2019-09-27 昆明冶金研究院 A kind of modified oxidized aluminum material and its preparation method and application
CN110721683B (en) * 2019-10-29 2021-06-04 昆明理工大学 Catalyst for oxidation under oxygen condition of liquid nitrogen washing tail gas, preparation method and use thereof
RU2755558C2 (en) * 2019-12-06 2021-09-17 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Method for the synthesis of a composition based on aluminum oxide and a solid solution of cerium and zirconium oxides
CN110905632A (en) * 2019-12-09 2020-03-24 黄加跃 Electric quantity emergency supply device in road construction process
CN111111770B (en) * 2020-01-17 2022-04-22 太原理工大学 Preparation method of microspherical bifunctional catalyst for preparing low-carbon olefin by converting synthesis gas
WO2021239480A1 (en) 2020-05-28 2021-12-02 Rhodia Operations Aluminium and zirconium-based mixed oxide
CN116600893A (en) * 2020-12-24 2023-08-15 三井金属矿业株式会社 Composite oxide and its production method
EP4347116B1 (en) 2021-05-28 2025-04-02 Rhodia Operations Composition of aluminium oxide and cerium oxide with a particular porosity profile
CN115916921A (en) * 2021-06-14 2023-04-04 第一稀元素化学工业株式会社 Composite oxide powder, friction material composition and friction material
WO2023006686A1 (en) 2021-07-30 2023-02-02 Rhodia Operations Composition of aluminium oxide and cerium oxide
JP6991384B1 (en) * 2021-08-12 2022-01-12 第一稀元素化学工業株式会社 Zirconia-based porous body and method for producing zirconia-based porous body
CN113683916B (en) * 2021-09-05 2022-11-08 蚌埠学院 Nano ZrO 2 /Al 2 O 3 Preparation method and application of composite material
US20250041833A1 (en) 2021-12-01 2025-02-06 Rhodia Operations Aluminium and Zirconium-Based Mixed Oxide
CN116493008A (en) * 2023-02-21 2023-07-28 山东国瓷功能材料股份有限公司 Coating slurry for catalytic converter and its preparation method and application

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021185A (en) * 1973-12-10 1977-05-03 Engelhard Minerals & Chemicals Corporation Compositions and methods for high temperature stable catalysts
US3956188A (en) * 1973-12-10 1976-05-11 Engelhard Minerals & Chemicals Corporation Compositions and methods for high temperature stable catalysts
US3870455A (en) * 1973-12-10 1975-03-11 Engelhard Min & Chem Method for catalytically supported thermal combustion
DE3823895C1 (en) 1988-07-14 1989-12-21 Condea Chemie Gmbh, 2212 Brunsbuettel, De
FR2720296B1 (en) 1994-05-27 1996-07-12 Rhone Poulenc Chimie Compounds based on alumina, cerium oxide and zirconium oxide with high reducibility, process for their preparation and their use in the preparation of catalysts.
EP0834348B1 (en) * 1996-10-07 2004-03-31 Kabushiki Kaisha Toyota Chuo Kenkyusho Composite oxide, composite oxide carrier and catalyst
JP3262044B2 (en) * 1996-10-07 2002-03-04 株式会社豊田中央研究所 Composite oxide carrier and composite oxide-containing catalyst
US6335305B1 (en) * 1999-01-18 2002-01-01 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for purifying exhaust gas
JP4443685B2 (en) * 1999-09-10 2010-03-31 三井金属鉱業株式会社 Method for producing a cocatalyst for exhaust gas purification
EP1172139B1 (en) 2000-07-14 2006-10-11 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for purifying exhaust gas
US7341976B2 (en) * 2002-10-16 2008-03-11 Conocophillips Company Stabilized boehmite-derived catalyst supports, catalysts, methods of making and using
DE10332775A1 (en) 2003-07-17 2005-02-17 Sasol Germany Gmbh Process for the preparation of boehmitic clays with a high a-transformation temperature
CN101080275B (en) * 2004-12-14 2010-05-05 日产自动车株式会社 Catalyst, catalyst for purifying exhaust gas, and method for producing catalyst
GB0428555D0 (en) * 2004-12-30 2005-02-09 Magnesium Elektron Ltd Composite material for automotive catalyst applications and method of manufacturing
GB0428557D0 (en) * 2004-12-30 2005-02-09 Magnesium Elektron Ltd Thermally stable doped and undoped porous aluminium oxides and nanocomposite CeO -ZrO and A1 O containing mixed oxides
JP2008540309A (en) * 2005-05-12 2008-11-20 ベリー スモール パーティクル コンパニー ピーティーワイ リミテッド Material production method
WO2006119549A1 (en) 2005-05-12 2006-11-16 Very Small Particle Company Pty Ltd Improved catalyst
PL1991354T3 (en) * 2006-02-17 2020-12-14 Rhodia Operations Composition based on oxides of zirconium, cerium, yttrium, lanthanum and of another rare earth, method for preparing same and catalytic use
FR2897609B1 (en) * 2006-02-17 2009-01-16 Rhodia Recherches & Tech COMPOSITION BASED ON ZIRCONIUM, CERIUM, YTTRIUM, LANTHAN AND OTHER RARE EARTH OXIDES, METHOD OF PREPARATION AND USE IN CATALYSIS
RU2395341C1 (en) * 2006-03-28 2010-07-27 Тойота Дзидося Кабусики Кайся Catalyst for cleaning exhaust gases, method of regenerating said catalyst, as well as device and method of cleaning exhaust gases using said catalyst
FR2901155B1 (en) * 2006-05-16 2008-10-10 Rhodia Recherches & Tech COMPOSITIONS USED IN PARTICULAR FOR TRACING NITROGEN OXIDES (NOX)
DE502007004776D1 (en) 2007-03-19 2010-09-30 Umicore Ag & Co Kg Palladium-Rhodium single layer catalyst
KR100885311B1 (en) * 2007-09-04 2009-02-24 한국화학연구원 Fischer-Tropsch synthesis cobalt / phosphorus-alumina catalyst and preparation method thereof
JP5652848B2 (en) * 2007-10-29 2015-01-14 ユミコア日本触媒株式会社 Nitrogen oxide removing catalyst and nitrogen oxide removing method using the same
CN101745375B (en) * 2008-12-15 2013-01-09 比亚迪股份有限公司 Cerium zirconium aluminum based multiple oxide material and preparing method thereof
JP5565569B2 (en) 2009-04-07 2014-08-06 株式会社豊田中央研究所 Exhaust gas purification catalyst
WO2012067654A1 (en) * 2010-11-16 2012-05-24 Rhodia Operations Porous inorganic composite oxide
DE102011107702A1 (en) * 2011-07-14 2013-01-17 Sasol Germany Gmbh Process for the preparation of composites of alumina and cerium / zirconium mixed oxides
IN2014DN00080A (en) * 2011-07-14 2015-05-15 Treibacher Ind Ag
US20130108530A1 (en) 2011-10-27 2013-05-02 Johnson Matthey Public Limited Company Process for producing ceria-zirconia-alumina composite oxides and applications thereof
CN103349978A (en) * 2013-06-25 2013-10-16 上海华明高纳稀土新材料有限公司 Cerium-zirconium-aluminium-based composite oxide catalytic material and preparation method thereof
CN104615268B (en) 2015-01-27 2018-05-04 北京奇虎科技有限公司 A kind of loading method and device of candidate's text based on input

Also Published As

Publication number Publication date
WO2013007809A1 (en) 2013-01-17
ZA201309640B (en) 2017-08-30
KR102033797B1 (en) 2019-10-17
EP2731709B1 (en) 2020-01-22
JP6138777B2 (en) 2017-05-31
US11135569B2 (en) 2021-10-05
US9889428B2 (en) 2018-02-13
US20130017947A1 (en) 2013-01-17
RU2014105423A (en) 2015-08-20
EP2731709A1 (en) 2014-05-21
CA2837543A1 (en) 2013-01-17
CN103648638A (en) 2014-03-19
CN106944031A (en) 2017-07-14
PL2731709T3 (en) 2020-06-01
BR112014000555A2 (en) 2017-02-14
RU2608741C2 (en) 2017-01-23
KR20140067981A (en) 2014-06-05
MY167886A (en) 2018-09-26
JP2014522801A (en) 2014-09-08
DK2731709T3 (en) 2020-03-23
CN103648638B (en) 2016-11-23
BR112014000555B1 (en) 2019-10-15
US20180147559A1 (en) 2018-05-31

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