ZA982712B - Catalyst composition containing an intimately combined cerium-zirconium oxide - Google Patents

Catalyst composition containing an intimately combined cerium-zirconium oxide

Info

Publication number
ZA982712B
ZA982712B ZA982712A ZA982712A ZA982712B ZA 982712 B ZA982712 B ZA 982712B ZA 982712 A ZA982712 A ZA 982712A ZA 982712 A ZA982712 A ZA 982712A ZA 982712 B ZA982712 B ZA 982712B
Authority
ZA
South Africa
Prior art keywords
composition containing
zirconium oxide
catalyst composition
intimately combined
cerium
Prior art date
Application number
ZA982712A
Other languages
English (en)
Inventor
Joseph Hui-Zhao Wu
Chung-Zong Wan
John J Steger
Original Assignee
Engelhard Corp
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 Engelhard Corp filed Critical Engelhard Corp
Publication of ZA982712B publication Critical patent/ZA982712B/xx

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
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/63—Platinum group metals with rare earths or actinides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/908—O2-storage component incorporated in the catalyst
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
ZA982712A 1997-04-08 1998-03-31 Catalyst composition containing an intimately combined cerium-zirconium oxide ZA982712B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/833,701 US5888464A (en) 1997-04-08 1997-04-08 Catalyst composition containing an intimately combined cerium-zirconium oxide

Publications (1)

Publication Number Publication Date
ZA982712B true ZA982712B (en) 1998-10-02

Family

ID=25265062

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA982712A ZA982712B (en) 1997-04-08 1998-03-31 Catalyst composition containing an intimately combined cerium-zirconium oxide

Country Status (4)

Country Link
US (1) US5888464A (xx)
AU (1) AU6942898A (xx)
WO (1) WO1998045027A1 (xx)
ZA (1) ZA982712B (xx)

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JP3688871B2 (ja) * 1997-11-20 2005-08-31 ダイハツ工業株式会社 排気ガス浄化用触媒
JP4029233B2 (ja) * 1998-05-11 2008-01-09 第一稀元素化学工業株式会社 セリウム−ジルコニウム系複合酸化物及びその製造方法ならびに排ガス浄化用触媒材料
US6350421B1 (en) * 1998-08-24 2002-02-26 Dmc2 Degussa Metals Catalysts Cerdec Ag Nitrogen oxide storage material and nitrogen oxide storing catalyst prepared therefrom
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US6464946B1 (en) 1999-05-07 2002-10-15 Daihatsu Motor Co., Ltd. Catalytic converter for cleaning exhaust gas
US6261989B1 (en) * 1999-05-19 2001-07-17 Daihatsu Motor Co., Ltd. Catalytic converter for cleaning exhaust gas
US6162757A (en) * 1999-07-20 2000-12-19 Mobil Oil Corporation Acid catalyst composition
US6204219B1 (en) * 1999-07-29 2001-03-20 W. R. Grace & Co.-Conn. Thermally stable support material and method for making the same
JP4443685B2 (ja) * 1999-09-10 2010-03-31 三井金属鉱業株式会社 排気ガス浄化用助触媒の製造方法
US6468484B1 (en) 2000-06-29 2002-10-22 Delphi Technologies, Inc. NO2 abatement composition with enhanced sulfur resistance
US6864214B2 (en) * 2000-09-26 2005-03-08 Daihatsu Motor Co., Ltd. Exhaust gas purifying catalyst
US6468941B1 (en) 2000-10-17 2002-10-22 Delphi Technologies, Inc. Niobium containing zirconium-cerium based soild solutions
EP1199096A1 (en) * 2000-10-21 2002-04-24 Degussa AG Catalyst for destruction of CO, VOC, and halogenated organic emissions
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US6866834B2 (en) * 2001-03-12 2005-03-15 Nissan Motor Co., Ltd. NOx reduction catalyst and NOx reduction system
FI20010973A (fi) * 2001-05-09 2002-11-10 Valtion Teknillinen Katalysaattori ja menetelmä typpioksidien katalyyttiseksi pelkistämiseksi
US6764665B2 (en) 2001-10-26 2004-07-20 Engelhard Corporation Layered catalyst composite
US20030186805A1 (en) * 2002-03-28 2003-10-02 Vanderspurt Thomas Henry Ceria-based mixed-metal oxide structure, including method of making and use
EP1356864A1 (en) * 2002-04-18 2003-10-29 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Platinum-group-metal free catalytic washcoats for particulate exhaust gas filter applications
JP3528839B2 (ja) * 2002-05-15 2004-05-24 トヨタ自動車株式会社 パティキュレート酸化材及び酸化触媒
JP3797313B2 (ja) 2002-10-28 2006-07-19 トヨタ自動車株式会社 金属酸化物粒子の製造法及び排ガス浄化用触媒
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US7202194B2 (en) * 2003-03-17 2007-04-10 Umicore Ag & Co. Kg Oxygen storage material, process for its preparation and its application in a catalyst
EP1464622A1 (en) * 2003-03-17 2004-10-06 Umicore AG & Co. KG An oxygen storage material, comprising Cerium oxide and at least one other oxide of a metal, process for its preparation and its application in a catalyst
US7452843B2 (en) * 2003-12-29 2008-11-18 Umicore Ag & Co. Kg Exhaust treatment devices, catalyst, and methods of making and using the same
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US8568675B2 (en) * 2009-02-20 2013-10-29 Basf Corporation Palladium-supported catalyst composites
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BR112022006955A2 (pt) * 2020-02-21 2022-09-06 Johnson Matthey Plc Composição catalisadora, e, artigo catalítico
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Also Published As

Publication number Publication date
AU6942898A (en) 1998-10-30
US5888464A (en) 1999-03-30
WO1998045027A1 (en) 1998-10-15

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