ZA9510499B - Sol-gel process for obtaining pure and mixed oxide zirconia spheres microspheres and washcoats useful as catalysts or catalyst supports - Google Patents

Sol-gel process for obtaining pure and mixed oxide zirconia spheres microspheres and washcoats useful as catalysts or catalyst supports

Info

Publication number
ZA9510499B
ZA9510499B ZA9510499A ZA9510499A ZA9510499B ZA 9510499 B ZA9510499 B ZA 9510499B ZA 9510499 A ZA9510499 A ZA 9510499A ZA 9510499 A ZA9510499 A ZA 9510499A ZA 9510499 B ZA9510499 B ZA 9510499B
Authority
ZA
South Africa
Prior art keywords
washcoats
sol
catalysts
useful
mixed oxide
Prior art date
Application number
ZA9510499A
Other languages
English (en)
Inventor
Marcello Marella
Letizia Meregalli
Michele Tomaselli
Original Assignee
Enirisorse Spa
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 Enirisorse Spa filed Critical Enirisorse Spa
Publication of ZA9510499B publication Critical patent/ZA9510499B/xx

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066Zirconium or hafnium; Oxides or hydroxides thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0215Coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/03Precipitation; Co-precipitation
    • B01J37/038Precipitation; Co-precipitation to form slurries or suspensions, e.g. a washcoat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00Compounds of zirconium
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00Compounds of zirconium
    • C01G25/006Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00Compounds of zirconium
    • C01G25/02Oxides
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/60Compounds characterised by their crystallite size
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • C01P2004/03Particle morphology depicted by an image obtained by SEM
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/30Particle morphology extending in three dimensions
    • C01P2004/32Spheres
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/64Nanometer sized, i.e. from 1-100 nanometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • C01P2006/13Surface area thermal stability thereof at high temperatures
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/14Pore volume
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/16Pore diameter
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/22Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/90Other properties not specified above

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Colloid Chemistry (AREA)
ZA9510499A 1994-12-21 1995-12-11 Sol-gel process for obtaining pure and mixed oxide zirconia spheres microspheres and washcoats useful as catalysts or catalyst supports ZA9510499B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI942588A IT1271312B (it) 1994-12-21 1994-12-21 Procedimento sol-gel per ottenere sfere,microsfere o rivestimenti di monoliti a forma cellulare,costituiti da ossido di zirconio puro o misto ad altri ossidi,utili come catalizzatori o supporti per catalizzatori

Publications (1)

Publication Number Publication Date
ZA9510499B true ZA9510499B (en) 1996-06-19

Family

ID=11370036

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9510499A ZA9510499B (en) 1994-12-21 1995-12-11 Sol-gel process for obtaining pure and mixed oxide zirconia spheres microspheres and washcoats useful as catalysts or catalyst supports

Country Status (8)

Country Link
US (1) US5750459A (it)
EP (2) EP0790216B1 (it)
JP (1) JPH08325015A (it)
AU (1) AU701538B2 (it)
DE (2) DE69517440T2 (it)
DK (2) DK0790216T3 (it)
IT (1) IT1271312B (it)
ZA (1) ZA9510499B (it)

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DE19735771C1 (de) * 1997-08-18 1999-04-29 Bayer Ag Verfahren zur Herstellung von Diarylcarbonaten
DE19735770C1 (de) * 1997-08-18 1999-05-27 Bayer Ag Verfahren zur Herstellung von Diarylcarbonaten
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US6168737B1 (en) * 1998-02-23 2001-01-02 The Regents Of The University Of California Method of casting patterned dielectric structures
US6099894A (en) * 1998-07-27 2000-08-08 Frisby Technologies, Inc. Gel-coated microcapsules
IT1302034B1 (it) * 1998-08-31 2000-07-20 Enirisorse Spa Catalizzatori superacidi solidi per l'isomerizzazione di idrocarburi eprocedimento sol-gel per il loro ottenimento
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KR100319922B1 (ko) * 1999-03-05 2002-01-09 이형도 디젤엔진 배기가스 정화용 촉매
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US7022889B2 (en) * 2001-08-29 2006-04-04 Uop Llc Isomerization process using novel catalyst
US6706659B2 (en) * 2001-08-29 2004-03-16 Uop Llc High-activity isomerization catalyst and process
US6979396B2 (en) * 2001-08-29 2005-12-27 Uop Llc Combination reforming and isomerization process
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US7435329B1 (en) 2001-08-29 2008-10-14 Uop Llc Combination reforming and isomerization process
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JP4963820B2 (ja) * 2005-09-02 2012-06-27 第一稀元素化学工業株式会社 Zr−O系粒子を分散質とするゾルの製造方法
US7682578B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Device for catalytically reducing exhaust
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JP2007144359A (ja) * 2005-11-30 2007-06-14 Ngk Insulators Ltd ハニカム構造体の触媒の担持方法
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Also Published As

Publication number Publication date
ITMI942588A0 (it) 1994-12-21
EP0718239B1 (en) 1998-03-11
DE69517440T2 (de) 2001-01-18
DE69517440D1 (de) 2000-07-13
EP0790216A3 (en) 1997-11-05
EP0718239A1 (en) 1996-06-26
DK0718239T3 (da) 1998-09-28
JPH08325015A (ja) 1996-12-10
EP0790216B1 (en) 2000-06-07
US5750459A (en) 1998-05-12
DK0790216T3 (da) 2000-10-09
EP0790216A2 (en) 1997-08-20
DE69501775T2 (de) 1998-07-09
DE69501775D1 (de) 1998-04-16
AU701538B2 (en) 1999-01-28
AU3791095A (en) 1996-06-27
IT1271312B (it) 1997-05-27
ITMI942588A1 (it) 1996-06-21

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