MX9804403A - Oxido de cerio, con poros que tienen una estructura laminar, un procedimiento para su preparacion y su uso en la catalisis. - Google Patents

Oxido de cerio, con poros que tienen una estructura laminar, un procedimiento para su preparacion y su uso en la catalisis.

Info

Publication number
MX9804403A
MX9804403A MX9804403A MX9804403A MX9804403A MX 9804403 A MX9804403 A MX 9804403A MX 9804403 A MX9804403 A MX 9804403A MX 9804403 A MX9804403 A MX 9804403A MX 9804403 A MX9804403 A MX 9804403A
Authority
MX
Mexico
Prior art keywords
cerium oxide
pores
lamellar structure
catalysis
preparation
Prior art date
Application number
MX9804403A
Other languages
English (en)
Inventor
Lionel Bonneau
Patrick Ferlin
Christophe Zing
Original Assignee
Rhodia Chimie Sa
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 Chimie Sa filed Critical Rhodia Chimie Sa
Publication of MX9804403A publication Critical patent/MX9804403A/es

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
    • 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
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/01—Crystal-structural characteristics depicted by a TEM-image
    • 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
    • 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
    • C01P2006/14—Pore volume
    • 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
    • C01P2006/16—Pore diameter
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

La invencion se refiere a un oxido de cerio con poros, que tienen una estructura laminar uniforme. Los poros pueden estado dispuestos, al menos parcialmente, en direcciones substancialmente paralelas y pueden también extenderse a través de los granos. El método para preparar este oxido de cerio comprende tratar por calor un compuesto que consiste esencialmente de octahidrato de carbonato de cerio. La atmosfera en la cual se realiza el tratamiento es realizado incluye una mezcla de aire vapor de agua o de oxígeno/valor de agua, con una fraccion del volumen del vapor de agua de al menos el 40%. Este oxido de cerio es particularmenteutil como un catalizador, en especial en la catálisis de la post-combustion de vehículos de motor.
MX9804403A 1995-12-04 1998-06-03 Oxido de cerio, con poros que tienen una estructura laminar, un procedimiento para su preparacion y su uso en la catalisis. MX9804403A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9514291A FR2741869B1 (fr) 1995-12-04 1995-12-04 Oxyde de cerium a pores de structure lamellaire, procede de preparation et utilisation en catalyse

Publications (1)

Publication Number Publication Date
MX9804403A true MX9804403A (es) 1998-09-30

Family

ID=9485106

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9804403A MX9804403A (es) 1995-12-04 1998-06-03 Oxido de cerio, con poros que tienen una estructura laminar, un procedimiento para su preparacion y su uso en la catalisis.

Country Status (11)

Country Link
US (1) US5994260A (es)
EP (1) EP0865412B1 (es)
JP (1) JP3321176B2 (es)
KR (1) KR19990071900A (es)
AT (1) ATE248772T1 (es)
CA (1) CA2238882C (es)
DE (1) DE69629829D1 (es)
FR (1) FR2741869B1 (es)
MX (1) MX9804403A (es)
NO (1) NO982534L (es)
WO (1) WO1997020772A1 (es)

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JPH11181403A (ja) 1997-12-18 1999-07-06 Hitachi Chem Co Ltd 酸化セリウム研磨剤及び基板の研磨法
JP4123644B2 (ja) * 1999-06-22 2008-07-23 トヨタ自動車株式会社 排ガス浄化触媒
US6680415B1 (en) 1999-11-22 2004-01-20 Dow Global Technologies Inc. Oxyhalogenation process using catalyst having porous rare earth halide support
US6909024B1 (en) 1999-11-22 2005-06-21 The Dow Chemical Company Process for the conversion of ethylene to vinyl chloride and novel catalyst compositions useful for such process
US6933417B1 (en) 1999-11-22 2005-08-23 Dow Global Technologies Inc. Process for vinyl chloride manufacture from ethane and ethylene with partial CHl recovery from reactor effluent
US6797845B1 (en) 1999-11-22 2004-09-28 Dow Global Technologies Inc. Process for vinyl chloride manufacture from ethane and ethylene with immediate HCl recovery from reactor effluent
US20040152929A1 (en) * 2002-05-08 2004-08-05 Clarke William D Process for vinyl chloride manufacture from ethane and ethylene with air feed and alternative hcl processing methods
US7431758B2 (en) * 2002-10-28 2008-10-07 Nissan Chemical Industries, Ltd. Cerium oxide particles and production method therefor
US6863825B2 (en) 2003-01-29 2005-03-08 Union Oil Company Of California Process for removing arsenic from aqueous streams
KR100682233B1 (ko) * 2004-07-29 2007-02-12 주식회사 엘지화학 산화세륨 분말 및 그 제조방법
TWI323741B (en) * 2004-12-16 2010-04-21 K C Tech Co Ltd Abrasive particles, polishing slurry, and producing method thereof
KR100641348B1 (ko) 2005-06-03 2006-11-03 주식회사 케이씨텍 Ｃｍｐ용 슬러리와 이의 제조 방법 및 기판의 연마 방법
KR100725699B1 (ko) 2005-09-02 2007-06-07 주식회사 엘지화학 일액형 ｃｍｐ 슬러리용 산화 세륨 분말, 그 제조방법,이를 포함하는 일액형 ｃｍｐ 슬러리 조성물, 및 상기슬러리를 사용하는 얕은 트랜치 소자 분리방법
JP4917098B2 (ja) * 2005-09-20 2012-04-18 エルジー・ケム・リミテッド 炭酸セリウム粉末及び製法、これから製造された酸化セリウム粉末及び製法、これを含むｃｍｐスラリー
US8361419B2 (en) 2005-09-20 2013-01-29 Lg Chem, Ltd. Cerium carbonate powder, method for preparing the same, cerium oxide powder made therefrom, method for preparing the same, and CMP slurry comprising the same
EP1838620B1 (en) * 2005-10-14 2016-12-14 Lg Chem, Ltd. Method for preparing a cerium oxide powder for a chemical mechanical polishing slurry
WO2007069488A1 (ja) * 2005-12-16 2007-06-21 Jsr Corporation 化学機械研磨用水系分散体および化学機械研磨方法、ならびに化学機械研磨用水系分散体を調製するためのキット
US20090325323A1 (en) * 2006-07-18 2009-12-31 Jsr Corporation Aqueous dispersion for chemical mechanical polishing, production method thereof, and chemical mechanical polishing method
US8066874B2 (en) 2006-12-28 2011-11-29 Molycorp Minerals, Llc Apparatus for treating a flow of an aqueous solution containing arsenic
US8252087B2 (en) 2007-10-31 2012-08-28 Molycorp Minerals, Llc Process and apparatus for treating a gas containing a contaminant
US8349764B2 (en) 2007-10-31 2013-01-08 Molycorp Minerals, Llc Composition for treating a fluid
US20090107919A1 (en) 2007-10-31 2009-04-30 Chevron U.S.A. Inc. Apparatus and process for treating an aqueous solution containing chemical contaminants
TW201038510A (en) * 2009-03-16 2010-11-01 Molycorp Minerals Llc Porous and durable ceramic filter monolith coated with a rare earth for removing contaminates from water
KR101050789B1 (ko) * 2009-09-21 2011-07-20 주식회사 엘지화학 탄산세륨계 화합물의 제조 방법, 산화세륨의 제조 방법 및 결정성 산화세륨
US20130032529A1 (en) * 2011-02-07 2013-02-07 Molycorp Minerals, Llc Rare earth-containing filter block and method for making and using the same
US9233863B2 (en) 2011-04-13 2016-01-12 Molycorp Minerals, Llc Rare earth removal of hydrated and hydroxyl species
JP5589996B2 (ja) * 2011-09-12 2014-09-17 株式会社日立製作所 二酸化炭素捕捉材
KR20160132076A (ko) 2014-03-07 2016-11-16 몰리코프 미네랄스, 엘엘씨 비소 제거 특성이 뛰어난 세륨(iv) 산화물
US10639621B2 (en) 2018-03-05 2020-05-05 Qatar University Nanoporous cerium oxide with interconnected pores for catalysis and a cost-effective method of preparing thereof

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FR2608583B1 (fr) * 1986-12-19 1990-12-07 Rhone Poulenc Chimie Oxyde cerique a nouvelles caracteristiques morphologiques et son procede d'obtention
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Also Published As

Publication number Publication date
DE69629829D1 (de) 2003-10-09
NO982534L (no) 1998-08-04
FR2741869A1 (fr) 1997-06-06
FR2741869B1 (fr) 1998-02-06
CA2238882A1 (fr) 1997-06-12
EP0865412B1 (fr) 2003-09-03
KR19990071900A (ko) 1999-09-27
NO982534D0 (no) 1998-06-03
EP0865412A1 (fr) 1998-09-23
JP3321176B2 (ja) 2002-09-03
US5994260A (en) 1999-11-30
JPH11501898A (ja) 1999-02-16
CA2238882C (fr) 2001-04-24
WO1997020772A1 (fr) 1997-06-12
ATE248772T1 (de) 2003-09-15

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