MX9800114A - Composicion basada en oxido de circonio y oxido de cerio, metodo de preparacion y uso de la misma. - Google Patents

Composicion basada en oxido de circonio y oxido de cerio, metodo de preparacion y uso de la misma.

Info

Publication number
MX9800114A
MX9800114A MX9800114A MX9800114A MX9800114A MX 9800114 A MX9800114 A MX 9800114A MX 9800114 A MX9800114 A MX 9800114A MX 9800114 A MX9800114 A MX 9800114A MX 9800114 A MX9800114 A MX 9800114A
Authority
MX
Mexico
Prior art keywords
zirconium
oxide
cerium oxide
degree
composition
Prior art date
Application number
MX9800114A
Other languages
English (en)
Inventor
Aubert Maryline
Birchem Thierry
Blanchard Gilbert
Touret Olivier
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9480620&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX9800114(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rhone Poulenc Chimie filed Critical Rhone Poulenc Chimie
Publication of MX9800114A publication Critical patent/MX9800114A/es

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
    • 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
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/02—Oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20715—Zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/40—Mixed oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • 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
    • 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
    • C01P2006/80—Compositional purity
    • 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)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Una composicion basada en oxido de circonio, que contiene oxido de cerio y tiene un área de superficie específica de al menos 30 m²/gr. después de calcinarse durante seis horas a 900 degree C. La composicion es una solucion solida pura de oxido de cerio y oxido de circonio. En una modalidad alternativa, la composicion además puede incluir un elemento dopante y tener un área de superficie específica de al menos 25 m²/gr. después de calcinarse durante seis horas a 1000 degree C. También se revela un método para preparar dichas composiciones, en donde una mezcla que contiene un compuesto de circonio y un compuesto IV de cerio es preparada en un medio líquido; la mezcla es calentada sobre los 100 degree C; después de ser calentado, el medio de reaccion resultante es ajustado a un pH básico; se recupera el precipitado resultante; y dicho precipitado es calcinado. Si se requiere, el elemento dopante es añadido a la mezcla líquida del comienzo o a la mezcla de reaccion obtenida después de la etapa de calentamiento.
MX9800114A 1995-07-03 1996-06-28 Composicion basada en oxido de circonio y oxido de cerio, metodo de preparacion y uso de la misma. MX9800114A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9507979A FR2736343B1 (fr) 1995-07-03 1995-07-03 Composition a base d'oxyde de zirconium et d'oxyde de cerium, procede de preparation et utilisation
PCT/FR1996/001003 WO1997002213A1 (fr) 1995-07-03 1996-06-28 Composition a base d'oxyde de zirconium et d'oxyde de cerium, procede de preparation et utilisation

Publications (1)

Publication Number Publication Date
MX9800114A true MX9800114A (es) 1998-04-30

Family

ID=9480620

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9800114A MX9800114A (es) 1995-07-03 1996-06-28 Composicion basada en oxido de circonio y oxido de cerio, metodo de preparacion y uso de la misma.

Country Status (18)

Country Link
US (1) US6214306B1 (es)
EP (1) EP0863846B1 (es)
JP (1) JP3490456B2 (es)
KR (1) KR100431919B1 (es)
CN (1) CN1177764C (es)
AT (1) ATE228970T1 (es)
AU (1) AU720555B2 (es)
BR (1) BR9609435A (es)
CA (1) CA2224409C (es)
DE (1) DE69625237C5 (es)
ES (1) ES2188767T3 (es)
FI (1) FI114909B (es)
FR (1) FR2736343B1 (es)
MX (1) MX9800114A (es)
MY (1) MY114721A (es)
NO (1) NO322625B1 (es)
WO (1) WO1997002213A1 (es)
ZA (1) ZA965464B (es)

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AU6462196A (en) 1997-02-05
MY114721A (en) 2002-12-31
EP0863846B1 (fr) 2002-12-04
FI980007A (fi) 1998-02-19
FR2736343B1 (fr) 1997-09-19
JPH10512191A (ja) 1998-11-24
NO976144L (no) 1998-03-03
NO322625B1 (no) 2006-11-06
CN1177764C (zh) 2004-12-01
JP3490456B2 (ja) 2004-01-26
FI114909B (fi) 2005-01-31
DE69625237D1 (de) 2003-01-16
DE69625237C5 (de) 2020-04-23
ZA965464B (en) 1997-04-24
ATE228970T1 (de) 2002-12-15
WO1997002213A1 (fr) 1997-01-23
AU720555B2 (en) 2000-06-01
KR19990028713A (ko) 1999-04-15
EP0863846A1 (fr) 1998-09-16
US6214306B1 (en) 2001-04-10
DE69625237T2 (de) 2003-08-21
CA2224409C (fr) 2002-04-09
BR9609435A (pt) 1999-05-25
FR2736343A1 (fr) 1997-01-10
KR100431919B1 (ko) 2004-07-16
CN1193948A (zh) 1998-09-23
NO976144D0 (no) 1997-12-30
CA2224409A1 (fr) 1997-01-23
ES2188767T3 (es) 2003-07-01
FI980007A0 (fi) 1998-01-02

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