BR0207856A - Material de suporte para catalisador, tendo alta capacidade de armazenamento de oxigênio, e método para preparação do mesmo - Google Patents

Material de suporte para catalisador, tendo alta capacidade de armazenamento de oxigênio, e método para preparação do mesmo

Info

Publication number
BR0207856A
BR0207856A BR0207856-2A BR0207856A BR0207856A BR 0207856 A BR0207856 A BR 0207856A BR 0207856 A BR0207856 A BR 0207856A BR 0207856 A BR0207856 A BR 0207856A
Authority
BR
Brazil
Prior art keywords
high oxygen
storage capacity
oxygen storage
oxides
preparing
Prior art date
Application number
BR0207856-2A
Other languages
English (en)
Inventor
Rasto Brezny
Manonj M Koranne
Takeshi Egami
Eugene Mamontov
Original Assignee
Grace W R & Co
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 Grace W R & Co filed Critical Grace W R & Co
Publication of BR0207856A publication Critical patent/BR0207856A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • 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
    • 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
    • B01J21/066—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
    • B01J23/002—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
    • 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
    • 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
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

"MATERIAL DE SUPORTE PARA CATALISADOR, TENDO ALTA CAPACIDADE DE ARMAZENAMENTO DE OXIGêNIO, E MéTODO PARA PREPARAçãO DO MESMO". Descreve-se óxidos mistos de óxido de cério e óxido de zircónio, tendo uma alta capacidade de armazenamento de oxigênio e uma alta taxa de liberação de oxigênio. Os óxidos mistos são feitos de partículas policristalinas de óxido de cério e óxido de zircónio, tendo uma estrutura de domínios controlada no nível subcristalino, onde domínios adjacentes dentro de um único cristalito têm uma proporção de zircónio e cério diferente. Os óxidos mistos são preparados por uma técnica de co-precipitação, usando soluções de sais mistos de cério e zircónio, tendo um teor de sólidos de pelo menos 23%, na base de óxidos.
BR0207856-2A 2001-03-13 2002-02-20 Material de suporte para catalisador, tendo alta capacidade de armazenamento de oxigênio, e método para preparação do mesmo BR0207856A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/804,873 US6528451B2 (en) 2001-03-13 2001-03-13 Catalyst support material having high oxygen storage capacity and method of preparation thereof
PCT/US2002/005375 WO2002072256A2 (en) 2001-03-13 2002-02-20 Catalyst support material having high oxygen storage capacity and method of preparation thereof

Publications (1)

Publication Number Publication Date
BR0207856A true BR0207856A (pt) 2004-07-06

Family

ID=25190074

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0207856-2A BR0207856A (pt) 2001-03-13 2002-02-20 Material de suporte para catalisador, tendo alta capacidade de armazenamento de oxigênio, e método para preparação do mesmo

Country Status (13)

Country Link
US (1) US6528451B2 (pt)
EP (1) EP1368117B1 (pt)
JP (1) JP4328529B2 (pt)
AT (1) ATE306319T1 (pt)
AU (1) AU2002244121B2 (pt)
BR (1) BR0207856A (pt)
CA (1) CA2440083C (pt)
DE (1) DE60206603T2 (pt)
ES (1) ES2249562T3 (pt)
HU (1) HU225798B1 (pt)
RU (1) RU2286209C2 (pt)
WO (1) WO2002072256A2 (pt)
ZA (1) ZA200306157B (pt)

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Also Published As

Publication number Publication date
ZA200306157B (en) 2004-09-06
HUP0303322A3 (en) 2005-11-28
US6528451B2 (en) 2003-03-04
CA2440083A1 (en) 2002-09-19
AU2002244121B2 (en) 2008-04-03
US20020132732A1 (en) 2002-09-19
WO2002072256A2 (en) 2002-09-19
HU225798B1 (en) 2007-09-28
ATE306319T1 (de) 2005-10-15
EP1368117B1 (en) 2005-10-12
DE60206603T2 (de) 2006-07-13
EP1368117A2 (en) 2003-12-10
JP2004529837A (ja) 2004-09-30
ES2249562T3 (es) 2006-04-01
HUP0303322A2 (hu) 2003-12-29
CA2440083C (en) 2010-06-29
DE60206603D1 (de) 2006-02-23
JP4328529B2 (ja) 2009-09-09
WO2002072256A3 (en) 2002-12-27
RU2286209C2 (ru) 2006-10-27
RU2003130097A (ru) 2005-04-10

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