GB1468093A - Method for preparing engine exhaust gas treatment catalyst - Google Patents

Method for preparing engine exhaust gas treatment catalyst

Info

Publication number
GB1468093A
GB1468093A GB2684374A GB2684374A GB1468093A GB 1468093 A GB1468093 A GB 1468093A GB 2684374 A GB2684374 A GB 2684374A GB 2684374 A GB2684374 A GB 2684374A GB 1468093 A GB1468093 A GB 1468093A
Authority
GB
United Kingdom
Prior art keywords
metal
exhaust gas
gas treatment
engine exhaust
treatment catalyst
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
Application number
GB2684374A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1468093A publication Critical patent/GB1468093A/en
Expired legal-status Critical Current

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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • 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

1468093 Coating with metal catalyst NISSAN MOTOR CO Ltd 18 June 1974 [31 July 1973] 26843/74 Heading C7F An engine exhaust gas treatment catalyst is prepared by coating a refractory carrier of ceramic or metal oxide electrolessly with metal, and thereafter immersing the carrier in a solution containing a compound of a catalytic metal selected from Pt, Ru, Rh or Pd to deposit the latter on the metal by chemical substitution. The ceramic may be cordierite; the carrier may be pre-treated with PdCl 2 and electroless plated with Cu, Ni, Co or Cr at 85-95‹C for 5-30 min. in a solution containing 5-100 g/l of metal compound; the body is then immersed in a solution of 0À1-1 g/l of a compound of Pt, Ru, Rh or Pd.
GB2684374A 1973-07-31 1974-06-18 Method for preparing engine exhaust gas treatment catalyst Expired GB1468093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48085470A JPS5033992A (en) 1973-07-31 1973-07-31

Publications (1)

Publication Number Publication Date
GB1468093A true GB1468093A (en) 1977-03-23

Family

ID=13859765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2684374A Expired GB1468093A (en) 1973-07-31 1974-06-18 Method for preparing engine exhaust gas treatment catalyst

Country Status (4)

Country Link
JP (1) JPS5033992A (en)
AU (1) AU463481B2 (en)
DE (1) DE2432524A1 (en)
GB (1) GB1468093A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810587A (en) * 1985-11-28 1989-03-07 N.V. Bekaert S.A. Laminated object comprising metal fibre webs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110054C2 (en) * 1991-03-27 1996-09-12 Degussa Use of a gas-permeable body made of metallic nickel or with a nickel coating to avoid H¶2¶S emissions during catalytic car exhaust gas cleaning
JP6395212B2 (en) * 2014-08-29 2018-09-26 株式会社キャタラー Method for producing exhaust gas purification catalyst

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412435B2 (en) * 1971-11-22 1979-05-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810587A (en) * 1985-11-28 1989-03-07 N.V. Bekaert S.A. Laminated object comprising metal fibre webs

Also Published As

Publication number Publication date
AU463481B2 (en) 1975-07-31
JPS5033992A (en) 1975-04-02
DE2432524A1 (en) 1975-03-06
AU7084174A (en) 1975-07-31

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee