ES436936A1 - Catalytic compounds - Google Patents

Catalytic compounds

Info

Publication number
ES436936A1
ES436936A1 ES436936A ES436936A ES436936A1 ES 436936 A1 ES436936 A1 ES 436936A1 ES 436936 A ES436936 A ES 436936A ES 436936 A ES436936 A ES 436936A ES 436936 A1 ES436936 A1 ES 436936A1
Authority
ES
Spain
Prior art keywords
type
centers
metal
platinum
occupied
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
ES436936A
Other languages
Spanish (es)
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
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of ES436936A1 publication Critical patent/ES436936A1/en
Expired legal-status Critical Current

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
    • 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
    • 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
    • B01J23/38—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
    • 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
    • B01J23/58—Platinum group metals with alkali- or alkaline earth 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
    • 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
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (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)

Abstract

A process for the manufacture of catalytic compositions with a perovskite crystal structure and formula ABO3, where type A cationic centers are practically completely occupied by ions of a metal with an atomic number of 11 to 51, 56 to 71 or 89 to 103; a part of the type B cation centers are occupied by ions of at least one metal from the platinum group selected from ruthenium, osmium, rhodium, iridium, palladium and platinum and the rest of the type B cation centers are occupied by ions of at least one metal not belonging to the platinum group with an ionic radius between 0.4 and 1.4 Angstroms; where mixtures of metal oxides, metal hydroxides, metals and/or reacting metal salts that are converted into oxides by heating in an oxidizing atmosphere are heated for sufficient times to temperatures that allow the spontaneous formation of the compounds; whose procedure is characterized in that the reactants are selected so that type B centers have one of the following characteristics: (A) At least 5% of the non-platinum type B centers are occupied by metal ions of variable valence in a first valence and at least 5% of the non-platinum type B centers are occupied by ions of the same metal of variable valence in a second valence; (B) Virtually all of the non-platinum metals from type B centers are present at a single valency and a majority portion of the non-platinum metals from type B centers are present at a valence of 3; and with the proviso that when the type A cation is barium and the platinum group metal is platinum, no more than 80% of the type B cation centers are occupied by titanium. (Machine-translation by Google Translate, not legally binding)
ES436936A 1974-04-25 1975-04-24 Catalytic compounds Expired ES436936A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46398574A 1974-04-25 1974-04-25
US46398674A 1974-04-25 1974-04-25

Publications (1)

Publication Number Publication Date
ES436936A1 true ES436936A1 (en) 1977-01-01

Family

ID=27040796

Family Applications (1)

Application Number Title Priority Date Filing Date
ES436936A Expired ES436936A1 (en) 1974-04-25 1975-04-24 Catalytic compounds

Country Status (10)

Country Link
JP (1) JPS50148288A (en)
BE (1) BE828343A (en)
BR (1) BR7502498A (en)
DE (2) DE2518536A1 (en)
ES (1) ES436936A1 (en)
FR (1) FR2279463A1 (en)
GB (1) GB1511333A (en)
IT (1) IT1037556B (en)
NL (1) NL7504861A (en)
SU (1) SU816391A3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1004992B (en) * 1986-07-30 1989-08-16 北京工业大学 Method for preparing rare earth metal composite oxide/alloy honeycomb catalyst
DE69427602T2 (en) * 1993-01-11 2001-11-22 Cataler Industrial Co., Ltd. Exhaust gas purification process
JP3409894B2 (en) * 1993-11-17 2003-05-26 トヨタ自動車株式会社 Exhaust gas purification catalyst and exhaust gas purification method
EP1419814A1 (en) 2002-11-15 2004-05-19 L'AIR LIQUIDE, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Perovskite catalyst for the partial oxidation of natural gas
JP4647406B2 (en) * 2005-06-16 2011-03-09 ダイハツ工業株式会社 Exhaust gas purification catalyst
CN101443119B (en) * 2006-04-12 2013-03-13 微小分子股份有限公司 Sulfur resistant emissions catalyst
JP2011510122A (en) * 2008-01-16 2011-03-31 ベリー スモール パーティクル コンパニー リミテッド Fuel additive
JP5388052B2 (en) * 2008-10-31 2014-01-15 独立行政法人産業技術総合研究所 Exhaust gas treatment catalyst
JP2010238546A (en) * 2009-03-31 2010-10-21 Equos Research Co Ltd Fine particle carrying metal oxide catalyst, its manufacturing method, and electrode for fuel cell
CN115915800B (en) * 2022-12-15 2023-10-27 嘉庚创新实验室 Intermediate material and application thereof, and preparation method of perovskite layer

Also Published As

Publication number Publication date
FR2279463A1 (en) 1976-02-20
FR2279463B1 (en) 1980-07-04
BE828343A (en) 1975-10-24
NL7504861A (en) 1975-10-28
DE2518537A1 (en) 1975-10-30
JPS50148288A (en) 1975-11-27
DE2518536A1 (en) 1975-10-30
SU816391A3 (en) 1981-03-23
BR7502498A (en) 1976-03-09
GB1511333A (en) 1978-05-17
IT1037556B (en) 1979-11-20

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