GB1489786A - Oxidation and reduction using platinum metal perovskite catalysts - Google Patents

Oxidation and reduction using platinum metal perovskite catalysts

Info

Publication number
GB1489786A
GB1489786A GB43934/74A GB4393474A GB1489786A GB 1489786 A GB1489786 A GB 1489786A GB 43934/74 A GB43934/74 A GB 43934/74A GB 4393474 A GB4393474 A GB 4393474A GB 1489786 A GB1489786 A GB 1489786A
Authority
GB
United Kingdom
Prior art keywords
platinum group
occupied
sites
metal
valence
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
GB43934/74A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Priority claimed from US405052A external-priority patent/US3897367A/en
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1489786A publication Critical patent/GB1489786A/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
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • 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
    • B01J23/8933—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 also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/894—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 also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20746—Cobalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20753—Nickel
    • 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
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • 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

Abstract

1489786 Exhaust gas purification catalysts E I DU PONT DE NEMOURS & CO 10 Oct 1974 [10 Oct 1973 25 April 1974 26 April 1974] 43934/74 Heading B1E [Also in Division Cl] A catalyst which may be contacted with a gaseous stream comprising at least one oxidizable and one reducible component selected from O 2 , H 2 , CO, hydrocarbons and nitrogen oxides under conditions to convert the components into at least one of H 2 O, CO 2 , N 2 and NH 3 comprises a metal oxide having the general formula ABO 3 and a perovskite crystal structure in which from 1% to 50% of the B cation sites are occupied by cations of a platinum group metal, wherein the B cation sites have at least one of the following composition characteristics: (a) at least 5% of the non platinum group B cation sites are occupied by a metal present in a first valence and at least 5% of the non platinum group B sites are occupied by the same metal present in a second valence; (b) the platinum group metal is platinum, palladium or rhodium; (c) a major proportion of the non platinum group B sites are occupied by the ions of aluminium; and (d) the non platinum group B sites are occupied by ions consisting essentially of trivalent iron, cobalt or nickel. Reference is made to Specification 1489785.
GB43934/74A 1973-10-10 1974-10-10 Oxidation and reduction using platinum metal perovskite catalysts Expired GB1489786A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US405052A US3897367A (en) 1973-10-10 1973-10-10 Metal oxide catalytic compositions
US46398874A 1974-04-25 1974-04-25
US46429974A 1974-04-26 1974-04-26

Publications (1)

Publication Number Publication Date
GB1489786A true GB1489786A (en) 1977-10-26

Family

ID=27410610

Family Applications (2)

Application Number Title Priority Date Filing Date
GB43933/74A Expired GB1489785A (en) 1973-10-10 1974-10-10 Perovskite catalytic compositions having crystal structures and containing metals of the platinum group
GB43934/74A Expired GB1489786A (en) 1973-10-10 1974-10-10 Oxidation and reduction using platinum metal perovskite catalysts

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB43933/74A Expired GB1489785A (en) 1973-10-10 1974-10-10 Perovskite catalytic compositions having crystal structures and containing metals of the platinum group

Country Status (8)

Country Link
JP (2) JPS5083295A (en)
BR (1) BR7408358D0 (en)
CA (2) CA1074081A (en)
DE (2) DE2446331A1 (en)
FR (2) FR2247284B1 (en)
GB (2) GB1489785A (en)
IT (2) IT1022653B (en)
NL (1) NL7413359A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03161052A (en) * 1989-11-17 1991-07-11 Matsushita Electric Ind Co Ltd Exhaust gas cleaning catalyst and its preparation
WO2006095557A1 (en) * 2005-03-04 2006-09-14 Daihatsu Motor Co., Ltd. Catalyst composition
JP4969843B2 (en) 2005-12-09 2012-07-04 新日鉄マテリアルズ株式会社 Exhaust gas purification catalyst and exhaust gas purification catalyst member
US20230112861A1 (en) * 2020-03-27 2023-04-13 Kyocera Corporation Catalyst, honeycomb structure, and exhaust gas purifier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4852691A (en) * 1971-10-19 1973-07-24
DE2155338C2 (en) * 1971-11-08 1983-11-10 Degussa Ag, 6000 Frankfurt Use of a supported catalyst containing the elements Ni, Co and / or Fe as well as Ru, Ti and / or Mn and optionally La, Sr and / or Ba in oxidic form for the oxidation of combustible constituents of gas mixtures

Also Published As

Publication number Publication date
FR2247284B1 (en) 1979-03-30
DE2446331A1 (en) 1975-04-17
GB1489785A (en) 1977-10-26
JPS5083295A (en) 1975-07-05
FR2247285A1 (en) 1975-05-09
IT1022653B (en) 1978-04-20
CA1074081A (en) 1980-03-25
CA1068074A (en) 1979-12-18
DE2446251A1 (en) 1975-04-17
FR2247284A1 (en) 1975-05-09
NL7413359A (en) 1975-04-14
JPS5078567A (en) 1975-06-26
IT1027605B (en) 1978-12-20
BR7408358D0 (en) 1975-07-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee