IT8220231A0 - Catalizzatori di metalli del gruppo del platino supportati con penetrazione del metallo controllata. - Google Patents

Catalizzatori di metalli del gruppo del platino supportati con penetrazione del metallo controllata.

Info

Publication number
IT8220231A0
IT8220231A0 IT8220231A IT2023182A IT8220231A0 IT 8220231 A0 IT8220231 A0 IT 8220231A0 IT 8220231 A IT8220231 A IT 8220231A IT 2023182 A IT2023182 A IT 2023182A IT 8220231 A0 IT8220231 A0 IT 8220231A0
Authority
IT
Italy
Prior art keywords
platinum group
catalyst supported
penetration
controlled
metal catalyst
Prior art date
Application number
IT8220231A
Other languages
English (en)
Other versions
IT1150691B (it
Inventor
Kim Gwan
Original Assignee
Grace W R & 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 Grace W R & Co filed Critical Grace W R & Co
Publication of IT8220231A0 publication Critical patent/IT8220231A0/it
Application granted granted Critical
Publication of IT1150691B publication Critical patent/IT1150691B/it

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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/396—Distribution of the active metal ingredient
    • 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)
IT20231/82A 1981-04-13 1982-03-17 Catalizzatori di metalli del gruppo del platino supportati con penetrazione del metallo controllata IT1150691B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/253,970 US4405506A (en) 1981-04-13 1981-04-13 Supported platinum group metal catalysts with controlled metal penetration

Publications (2)

Publication Number Publication Date
IT8220231A0 true IT8220231A0 (it) 1982-03-17
IT1150691B IT1150691B (it) 1986-12-17

Family

ID=22962412

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20231/82A IT1150691B (it) 1981-04-13 1982-03-17 Catalizzatori di metalli del gruppo del platino supportati con penetrazione del metallo controllata

Country Status (6)

Country Link
US (1) US4405506A (it)
JP (1) JPS57174137A (it)
DE (1) DE3213141A1 (it)
FR (1) FR2503580A1 (it)
GB (1) GB2096482B (it)
IT (1) IT1150691B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591580A (en) * 1983-01-26 1986-05-27 W. R. Grace & Co. Stabilized and doubly promoted platinum group metal catalysts for emission control and method of making same
SE462143C (sv) * 1988-03-07 1996-02-19 Heraeus Gmbh W C Katalysator för bilavgasrening, förfarande för framställning därav samt användning därav
JP2001070794A (ja) * 1999-09-03 2001-03-21 Japan Energy Corp 白金族金属成分を含有した固体酸触媒
JP4019357B2 (ja) * 2002-05-02 2007-12-12 日産自動車株式会社 排気ガス浄化用触媒粉末の製造方法及び排気ガス浄化触媒の製造方法
DE102008023472B4 (de) 2008-05-14 2021-12-09 Clariant Produkte (Deutschland) Gmbh Verfahren zur Herstellung einer Platinkatalysator-Vorstufe, Katalysator-Vorstufe oder Katalysator und dessen Verwendung
EP4225490A1 (en) * 2020-10-09 2023-08-16 BASF Corporation Three-way conversion catalyst composition comprising platinum-rhodium bimetallic components

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102819A (en) * 1973-12-28 1978-07-25 Prototech, Inc. Finely particulated colloidal platinum, compound and sol for producing the same, and method of preparation
US3932309A (en) * 1974-06-05 1976-01-13 W. R. Grace & Co. Auto exhaust catalysts prepared from sulfite treated platinum and palladium salt solutions
US4128506A (en) * 1978-01-23 1978-12-05 General Motors Corporation Platinum-rhodium catalyst for automotive emission control

Also Published As

Publication number Publication date
GB2096482B (en) 1984-11-28
US4405506A (en) 1983-09-20
GB2096482A (en) 1982-10-20
FR2503580B1 (it) 1985-03-29
DE3213141A1 (de) 1982-11-11
IT1150691B (it) 1986-12-17
JPS57174137A (en) 1982-10-26
FR2503580A1 (fr) 1982-10-15

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