AT333705B - REDUCING CATALYST AND METHOD FOR MANUFACTURING IT - Google Patents

REDUCING CATALYST AND METHOD FOR MANUFACTURING IT

Info

Publication number
AT333705B
AT333705B AT1108872A AT1108872A AT333705B AT 333705 B AT333705 B AT 333705B AT 1108872 A AT1108872 A AT 1108872A AT 1108872 A AT1108872 A AT 1108872A AT 333705 B AT333705 B AT 333705B
Authority
AT
Austria
Prior art keywords
manufacturing
reducing catalyst
catalyst
reducing
Prior art date
Application number
AT1108872A
Other languages
German (de)
Other versions
ATA1108872A (en
Original Assignee
Hoechst Ag
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 DE19712165550 external-priority patent/DE2165550C3/en
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of ATA1108872A publication Critical patent/ATA1108872A/en
Application granted granted Critical
Publication of AT333705B publication Critical patent/AT333705B/en

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
    • 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
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes 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
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/889—Manganese, technetium or rhenium
    • B01J23/8892—Manganese
    • 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
    • B01D2255/2073—Manganese
    • 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
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • 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)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
AT1108872A 1971-12-30 1972-12-28 REDUCING CATALYST AND METHOD FOR MANUFACTURING IT AT333705B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712165550 DE2165550C3 (en) 1971-12-30 Reduction catalyst

Publications (2)

Publication Number Publication Date
ATA1108872A ATA1108872A (en) 1976-04-15
AT333705B true AT333705B (en) 1976-12-10

Family

ID=5829702

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1108872A AT333705B (en) 1971-12-30 1972-12-28 REDUCING CATALYST AND METHOD FOR MANUFACTURING IT

Country Status (15)

Country Link
JP (1) JPS5632019B2 (en)
AT (1) AT333705B (en)
BE (1) BE793518A (en)
BR (1) BR7209123D0 (en)
CA (1) CA1003814A (en)
CH (1) CH591282A5 (en)
CS (1) CS179405B2 (en)
DD (1) DD100635A5 (en)
FR (1) FR2166191A1 (en)
IL (1) IL41147A (en)
IT (1) IT974321B (en)
NL (1) NL177467C (en)
PL (1) PL85181B1 (en)
RO (1) RO61301A (en)
SE (1) SE381408B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS169764B2 (en) * 1973-05-09 1976-07-29
JP2547124B2 (en) * 1991-02-02 1996-10-23 工業技術院長 Method for reducing and removing nitrogen oxides
JP2008168228A (en) * 2007-01-12 2008-07-24 Okayama Univ Catalyst for purifying nitrogen oxide in exhaust gas of diesel engine using unburnt carbon and nitrogen oxide purifying method

Also Published As

Publication number Publication date
CA1003814A (en) 1977-01-18
PL85181B1 (en) 1976-04-30
CS179405B2 (en) 1977-10-31
ATA1108872A (en) 1976-04-15
BR7209123D0 (en) 1973-09-25
IL41147A (en) 1975-07-28
IL41147A0 (en) 1973-02-28
FR2166191B1 (en) 1981-10-02
IT974321B (en) 1974-06-20
BE793518A (en) 1973-06-29
SE381408B (en) 1975-12-08
CH591282A5 (en) 1977-09-15
DE2165550B2 (en) 1976-01-15
RO61301A (en) 1976-09-15
NL177467C (en) 1985-10-01
DD100635A5 (en) 1973-10-05
DE2165550A1 (en) 1973-07-05
JPS5632019B2 (en) 1981-07-24
JPS4879189A (en) 1973-10-24
NL7217018A (en) 1973-07-03
FR2166191A1 (en) 1973-08-10

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee