MX169544B - Composiciones cataliticas de bioxido de cerio estabilizadas con aluminio y metodo para su fabricacion - Google Patents

Composiciones cataliticas de bioxido de cerio estabilizadas con aluminio y metodo para su fabricacion

Info

Publication number
MX169544B
MX169544B MX007025A MX702587A MX169544B MX 169544 B MX169544 B MX 169544B MX 007025 A MX007025 A MX 007025A MX 702587 A MX702587 A MX 702587A MX 169544 B MX169544 B MX 169544B
Authority
MX
Mexico
Prior art keywords
aluminum
stabilized
cerio
bioxide
manufacture
Prior art date
Application number
MX007025A
Other languages
English (en)
Inventor
Chung-Zong Wan
Joseph C Dettling
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 MX169544B publication Critical patent/MX169544B/es

Links

Classifications

    • 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
    • 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
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

La presente invención se refiere a un metodo para fabricar una composición catalítica que comprende un bióxido de cerio estabilizado con aluminio, el cual comprende: a) impregnar el bióxido de cerio a granel o un precursor del mismo a granel con una dispersión líquida de un precursor de estabilizador de aluminio; y b) calcinar el bióxido de cerio impregnado, obtenido en la etapa (a).
MX007025A 1986-06-30 1987-06-22 Composiciones cataliticas de bioxido de cerio estabilizadas con aluminio y metodo para su fabricacion MX169544B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/880,270 US4714694A (en) 1986-06-30 1986-06-30 Aluminum-stabilized ceria catalyst compositions, and methods of making the same

Publications (1)

Publication Number Publication Date
MX169544B true MX169544B (es) 1993-07-12

Family

ID=25375909

Family Applications (1)

Application Number Title Priority Date Filing Date
MX007025A MX169544B (es) 1986-06-30 1987-06-22 Composiciones cataliticas de bioxido de cerio estabilizadas con aluminio y metodo para su fabricacion

Country Status (6)

Country Link
US (1) US4714694A (es)
EP (1) EP0251752A1 (es)
JP (1) JPS637841A (es)
KR (1) KR950002218B1 (es)
BR (1) BR8703218A (es)
MX (1) MX169544B (es)

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US4714694A (en) 1987-12-22
EP0251752A1 (en) 1988-01-07
KR880000142A (ko) 1988-03-23
JPS637841A (ja) 1988-01-13
KR950002218B1 (ko) 1995-03-15
BR8703218A (pt) 1988-03-15

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