SE9302913D0 - Car exhaust catalyst and process for making the same - Google Patents

Car exhaust catalyst and process for making the same

Info

Publication number
SE9302913D0
SE9302913D0 SE9302913A SE9302913A SE9302913D0 SE 9302913 D0 SE9302913 D0 SE 9302913D0 SE 9302913 A SE9302913 A SE 9302913A SE 9302913 A SE9302913 A SE 9302913A SE 9302913 D0 SE9302913 D0 SE 9302913D0
Authority
SE
Sweden
Prior art keywords
hydroxide
platina
cerium
making
same
Prior art date
Application number
SE9302913A
Other languages
Swedish (sv)
Other versions
SE9302913L (en
Inventor
Per Olsson
Original Assignee
Perstorp Ab
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 Perstorp Ab filed Critical Perstorp Ab
Priority to SE9302913A priority Critical patent/SE9302913L/en
Publication of SE9302913D0 publication Critical patent/SE9302913D0/en
Priority to AU76277/94A priority patent/AU7627794A/en
Priority to PCT/SE1994/000808 priority patent/WO1995007138A1/en
Publication of SE9302913L publication Critical patent/SE9302913L/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
    • 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
    • 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
    • B01J37/0201—Impregnation
    • 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
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation
    • 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)
  • Materials Engineering (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)

Abstract

An inert support body is impregnated with an aqueous solution containing a salt of platina and a salt of cerium or lanthanum. The metal salts are then precipitated simultaneously by contact with one or more alkaline substances, as a platina hydroxide and a cerium or lanthanum hydroxide, respectively. The support is subsequently dried and then heated to a temperature of 300-900 DEG C, whereby the precipitated platina hydroxide and the precipitated cerium or lanthanum hydroxide respectively are principally calcined to the corresponding oxide.
SE9302913A 1993-09-09 1993-09-09 Car exhaust catalyst and process for making the same SE9302913L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9302913A SE9302913L (en) 1993-09-09 1993-09-09 Car exhaust catalyst and process for making the same
AU76277/94A AU7627794A (en) 1993-09-09 1994-09-02 A process for the production of a catalyst for purification of exhaust gases
PCT/SE1994/000808 WO1995007138A1 (en) 1993-09-09 1994-09-02 A process for the production of a catalyst for purification of exhaust gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9302913A SE9302913L (en) 1993-09-09 1993-09-09 Car exhaust catalyst and process for making the same

Publications (2)

Publication Number Publication Date
SE9302913D0 true SE9302913D0 (en) 1993-09-09
SE9302913L SE9302913L (en) 1995-03-10

Family

ID=20391027

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9302913A SE9302913L (en) 1993-09-09 1993-09-09 Car exhaust catalyst and process for making the same

Country Status (3)

Country Link
AU (1) AU7627794A (en)
SE (1) SE9302913L (en)
WO (1) WO1995007138A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114230080B (en) * 2021-12-24 2024-05-24 云南科力环保股份公司 Zero-emission treatment method for platinum noble metal wastewater

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887740A (en) * 1972-05-01 1975-06-03 Corning Glass Works Process for depositing oxide coatings
US4001143A (en) * 1975-04-08 1977-01-04 E. I. Du Pont De Nemours And Company Catalyst preparation
GB1568370A (en) * 1975-10-31 1980-05-29 Johnson Matthey Co Ltd Catalysis
DE3902913A1 (en) * 1989-02-01 1990-08-09 Degussa SUPPLY MATERIAL FOR PLATING GROUND METAL-CONTAINING THREE-WAY CATALYSTS WITH REDUCED INCLINATION TO H (ARROW DOWN) 2 (ARROW DOWN) S-EMISSION

Also Published As

Publication number Publication date
SE9302913L (en) 1995-03-10
AU7627794A (en) 1995-03-27
WO1995007138A1 (en) 1995-03-16

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