ES2117394T3 - Precursor de una composicion y composicion a base de un oxido mixto de cerio y de circonio, procedimiento de preparacion y utilizacion. - Google Patents

Precursor de una composicion y composicion a base de un oxido mixto de cerio y de circonio, procedimiento de preparacion y utilizacion.

Info

Publication number
ES2117394T3
ES2117394T3 ES95904568T ES95904568T ES2117394T3 ES 2117394 T3 ES2117394 T3 ES 2117394T3 ES 95904568 T ES95904568 T ES 95904568T ES 95904568 T ES95904568 T ES 95904568T ES 2117394 T3 ES2117394 T3 ES 2117394T3
Authority
ES
Spain
Prior art keywords
composition
precursor
pct
cerium
zirconium
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES95904568T
Other languages
English (en)
Inventor
Lionel Bonneau
Thierry Chopin
Olivier Touret
Gabriel Vilmin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodia Chimie SAS
Original Assignee
Rhodia Chimie SAS
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=9454362&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2117394(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rhodia Chimie SAS filed Critical Rhodia Chimie SAS
Application granted granted Critical
Publication of ES2117394T3 publication Critical patent/ES2117394T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • 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

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE PREPARACION DE UN PRECURSOR DE UNA COMPOSICION A BASE DE UN OXIDO MIXTO DE CERIO Y DE CIRCONIO, CARACTERIZADO POR LAS SIGUIENTES ETAPAS: SE PREPARA UNA MEZCLA LIQUIDA QUE COMPRENDE LOS COMPUESTOS DE CERIO Y CIRCONIO, SE PONE EN CONTACTO LA MEZCLA ANTERIOR CON UN CARBONATO O UN BICARBONATO Y SE FORMA UN MEDIO DE REACCION QUE PRESENTA DURANTE LA REACCION UN PH NEUTRO O BASICO; SE RECUPERA EL PRECIPITADO OBTENIDO. SE OBTIENE UNA COMPOSICION A BASE DE UN OXIDO MIXTO DE CERIO Y DE CIRCONIO CALCINANDO ESTE PRECURSOR. ESTA COMPOSICION SE CARACTERIZA PORQUE PRESENTA UN VOLUMEN POROSO TOTAL DE AL MENOS 0,6 CM{SUP,3}/G Y PORQUE AL MENOS AL 40%, MAS EN PARTICULAR AL MENOS AL 50%, DEL VOLUMEN POROSO TOTAL ES APORTADO POR POROS DE UN DIAMETRO COMO MAXIMO DE 1 (MU)M.
ES95904568T 1993-12-24 1994-12-20 Precursor de una composicion y composicion a base de un oxido mixto de cerio y de circonio, procedimiento de preparacion y utilizacion. Expired - Lifetime ES2117394T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9315605A FR2714370B1 (fr) 1993-12-24 1993-12-24 Précurseur d'une composition et composition à base d'un oxyde mixte de cérium et de zirconium, procédé de préparation et utilisation.

Publications (1)

Publication Number Publication Date
ES2117394T3 true ES2117394T3 (es) 1998-08-01

Family

ID=9454362

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95904568T Expired - Lifetime ES2117394T3 (es) 1993-12-24 1994-12-20 Precursor de una composicion y composicion a base de un oxido mixto de cerio y de circonio, procedimiento de preparacion y utilizacion.

Country Status (15)

Country Link
US (1) US5908800A (es)
EP (1) EP0735984B1 (es)
JP (1) JP3016865B2 (es)
KR (1) KR100354470B1 (es)
CN (1) CN1039804C (es)
AT (1) ATE163905T1 (es)
AU (1) AU692207B2 (es)
BR (1) BR9408361A (es)
CA (1) CA2178834C (es)
DE (1) DE69409006C5 (es)
ES (1) ES2117394T3 (es)
FI (1) FI107799B (es)
FR (1) FR2714370B1 (es)
WO (1) WO1995018068A1 (es)
ZA (1) ZA9410256B (es)

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Also Published As

Publication number Publication date
FR2714370A1 (fr) 1995-06-30
CA2178834C (fr) 2000-11-07
KR100354470B1 (ko) 2002-12-26
FI107799B (fi) 2001-10-15
EP0735984A1 (fr) 1996-10-09
JPH09506587A (ja) 1997-06-30
CN1039804C (zh) 1998-09-16
ATE163905T1 (de) 1998-03-15
DE69409006T2 (de) 1998-09-24
DE69409006C5 (de) 2019-08-14
DE69409006D1 (de) 1998-04-16
KR960706453A (ko) 1996-12-09
AU1319495A (en) 1995-07-17
CN1137784A (zh) 1996-12-11
CA2178834A1 (fr) 1995-07-06
JP3016865B2 (ja) 2000-03-06
FR2714370B1 (fr) 1996-03-08
EP0735984B1 (fr) 1998-03-11
WO1995018068A1 (fr) 1995-07-06
BR9408361A (pt) 1997-08-26
FI962586A (fi) 1996-06-20
FI962586A0 (fi) 1996-06-20
US5908800A (en) 1999-06-01
ZA9410256B (en) 1996-02-06
AU692207B2 (en) 1998-06-04

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