BR9502567A - Composto que compreende alumina óxido de cério e óxido de zircônio processo de preparação do mesmo precursor do mesmo utilização do mesmo e catalisador notadamente para o crescimento dos gases de escapamento dos motores de combustão interna - Google Patents

Composto que compreende alumina óxido de cério e óxido de zircônio processo de preparação do mesmo precursor do mesmo utilização do mesmo e catalisador notadamente para o crescimento dos gases de escapamento dos motores de combustão interna

Info

Publication number
BR9502567A
BR9502567A BR9502567A BR9502567A BR9502567A BR 9502567 A BR9502567 A BR 9502567A BR 9502567 A BR9502567 A BR 9502567A BR 9502567 A BR9502567 A BR 9502567A BR 9502567 A BR9502567 A BR 9502567A
Authority
BR
Brazil
Prior art keywords
same
alumina
catalyst
notably
growth
Prior art date
Application number
BR9502567A
Other languages
English (en)
Inventor
Thierry Chopin
Oliver Touret
Gabriel Vilmin
Original Assignee
Rhone Poulenc Chimie
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 Rhone Poulenc Chimie filed Critical Rhone Poulenc Chimie
Publication of BR9502567A publication Critical patent/BR9502567A/pt

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0054—Mixed oxides or hydroxides containing one rare earth metal, yttrium or scandium
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/006—Compounds containing zirconium, with or without oxygen or hydrogen, and containing two or more other elements
    • 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
    • C01P2006/10—Solid density
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
BR9502567A 1994-05-27 1995-05-26 Composto que compreende alumina óxido de cério e óxido de zircônio processo de preparação do mesmo precursor do mesmo utilização do mesmo e catalisador notadamente para o crescimento dos gases de escapamento dos motores de combustão interna BR9502567A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9406447A FR2720296B1 (fr) 1994-05-27 1994-05-27 Composés à base d'alumine, d'oxyde de cérium et d'oxyde de zirconium à réductibilité élevée, leur procédé de préparation et leur utilisation dans la préparation de catalyseurs.

Publications (1)

Publication Number Publication Date
BR9502567A true BR9502567A (pt) 1996-06-04

Family

ID=9463571

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9502567A BR9502567A (pt) 1994-05-27 1995-05-26 Composto que compreende alumina óxido de cério e óxido de zircônio processo de preparação do mesmo precursor do mesmo utilização do mesmo e catalisador notadamente para o crescimento dos gases de escapamento dos motores de combustão interna

Country Status (13)

Country Link
US (1) US5883037A (pt)
EP (1) EP0684073B1 (pt)
JP (1) JP2789313B2 (pt)
KR (1) KR100364189B1 (pt)
CN (1) CN1085109C (pt)
AT (1) ATE189974T1 (pt)
AU (1) AU2025995A (pt)
BR (1) BR9502567A (pt)
CA (1) CA2150296C (pt)
DE (1) DE69515209T2 (pt)
FI (1) FI952567A7 (pt)
FR (1) FR2720296B1 (pt)
ZA (1) ZA954058B (pt)

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Also Published As

Publication number Publication date
EP0684073B1 (fr) 2000-03-01
DE69515209T2 (de) 2000-09-07
US5883037A (en) 1999-03-16
CA2150296A1 (fr) 1995-11-28
EP0684073A1 (fr) 1995-11-29
FR2720296A1 (fr) 1995-12-01
FI952567L (fi) 1995-11-28
AU2025995A (en) 1995-12-07
KR100364189B1 (ko) 2004-05-27
JP2789313B2 (ja) 1998-08-20
ZA954058B (en) 1996-01-19
CN1116965A (zh) 1996-02-21
CN1085109C (zh) 2002-05-22
JPH07315840A (ja) 1995-12-05
ATE189974T1 (de) 2000-03-15
FI952567A0 (fi) 1995-05-26
DE69515209D1 (de) 2000-04-06
CA2150296C (fr) 2000-04-25
FR2720296B1 (fr) 1996-07-12
KR950031907A (ko) 1995-12-20
FI952567A7 (fi) 1995-11-28

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