ES450974A1 - Perfeccionamientos introducidos en un metodo de preparar un catalizador. - Google Patents

Perfeccionamientos introducidos en un metodo de preparar un catalizador.

Info

Publication number
ES450974A1
ES450974A1 ES450974A ES450974A ES450974A1 ES 450974 A1 ES450974 A1 ES 450974A1 ES 450974 A ES450974 A ES 450974A ES 450974 A ES450974 A ES 450974A ES 450974 A1 ES450974 A1 ES 450974A1
Authority
ES
Spain
Prior art keywords
weight percent
catalysts
composite
rhodium
platinum
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
ES450974A
Other languages
English (en)
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.)
Engelhard Minerals and Chemicals Corp
Original Assignee
Engelhard Minerals and Chemicals 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 Minerals and Chemicals Corp filed Critical Engelhard Minerals and Chemicals Corp
Publication of ES450974A1 publication Critical patent/ES450974A1/es
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
    • B01J23/38—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
    • B01J23/70—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
    • B01J37/0238—Impregnation, coating or precipitation via the gaseous phase-sublimation
    • 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

Perfeccionamientos introducidos en un método de preparar un catalizador adecuado para, simultáneamente, oxidar hidrocarburos gaseosos y monóxido de carbono y reducir óxidos de nitrógeno, que comprende: un soporte de alúmina, un componente metálico del grupo del platino, siendo dicho componente metálico del grupo del platino y un metal seleccionado del grupo consistente en rodio, rutenio, paladio e iridio o mezclas o aleaciones de los mismos, y un componente de base de óxido metálico, estando seleccionado dicho óxido metálico de base entre el grupo consistente en óxidos de hierro, cobalto, níquel, cromo, tungsteno, cinc, cobre, manganeso y renio y mezclas de los mismos, estando presente dicho óxido metálico de base en una cantidad sustancialmente mayor que dicho metal del grupo del platino, caracterizados dichos perfeccionamientos por combinar primero dicho componente metálico del grupo del platino y dicho óxido metálico de base con dicha alúmina, y depositar el compuesto resultante sobre unportador.
ES450974A 1975-08-27 1976-08-25 Perfeccionamientos introducidos en un metodo de preparar un catalizador. Expired ES450974A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60808475A 1975-08-27 1975-08-27

Publications (1)

Publication Number Publication Date
ES450974A1 true ES450974A1 (es) 1978-01-16

Family

ID=24434964

Family Applications (3)

Application Number Title Priority Date Filing Date
ES450974A Expired ES450974A1 (es) 1975-08-27 1976-08-25 Perfeccionamientos introducidos en un metodo de preparar un catalizador.
ES462042A Expired ES462042A1 (es) 1975-08-27 1977-09-01 Un metodo de hacer reaccionar los contaminantes de los gasesde escape.
ES462043A Expired ES462043A1 (es) 1975-08-27 1977-09-01 Un metodo de hacer reaccionar contaminantes de gases de es- cape.

Family Applications After (2)

Application Number Title Priority Date Filing Date
ES462042A Expired ES462042A1 (es) 1975-08-27 1977-09-01 Un metodo de hacer reaccionar los contaminantes de los gasesde escape.
ES462043A Expired ES462043A1 (es) 1975-08-27 1977-09-01 Un metodo de hacer reaccionar contaminantes de gases de es- cape.

Country Status (16)

Country Link
US (1) US4157316A (es)
JP (1) JPS5227088A (es)
AR (1) AR220510A1 (es)
AU (1) AU505606B2 (es)
BE (1) BE845625A (es)
BR (1) BR7605638A (es)
CA (1) CA1083124A (es)
DD (1) DD127678A5 (es)
DE (1) DE2637198A1 (es)
ES (3) ES450974A1 (es)
FR (1) FR2321940A1 (es)
GB (1) GB1561683A (es)
IT (1) IT1068218B (es)
MX (1) MX4509E (es)
PL (1) PL107472B1 (es)
SE (1) SE446506C (es)

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Also Published As

Publication number Publication date
BE845625A (fr) 1977-02-28
AU505606B2 (en) 1979-11-29
SE7609423L (sv) 1977-02-28
SE446506C (sv) 1988-04-18
DE2637198A1 (de) 1977-03-03
BR7605638A (pt) 1977-08-09
DE2637198C2 (es) 1989-08-10
AR220510A1 (es) 1980-11-14
JPS5227088A (en) 1977-03-01
US4157316A (en) 1979-06-05
AU1713376A (en) 1978-03-02
IT1068218B (it) 1985-03-21
SE446506B (sv) 1986-09-22
FR2321940B1 (es) 1983-01-28
ES462042A1 (es) 1978-06-01
DD127678A5 (es) 1977-10-05
ES462043A1 (es) 1978-06-01
CA1083124A (en) 1980-08-05
GB1561683A (en) 1980-02-27
FR2321940A1 (fr) 1977-03-25
PL107472B1 (pl) 1980-02-29
MX4509E (es) 1982-06-02

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