GB1504060A - Process for coating a refractory support with an active metal oxide film - Google Patents

Process for coating a refractory support with an active metal oxide film

Info

Publication number
GB1504060A
GB1504060A GB2991575A GB2991575A GB1504060A GB 1504060 A GB1504060 A GB 1504060A GB 2991575 A GB2991575 A GB 2991575A GB 2991575 A GB2991575 A GB 2991575A GB 1504060 A GB1504060 A GB 1504060A
Authority
GB
United Kingdom
Prior art keywords
coating
alumina
hydrosol
monolith
oxide film
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
GB2991575A
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of GB1504060A publication Critical patent/GB1504060A/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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/864—Removing carbon monoxide or hydrocarbons
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (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

1504060 Treating exhaust gases AIR PRODUCTS & CHEMICALS Inc 16 July 1975 [10 Sept 1974] 29915/75 Heading C1A [Also in Divisions B1-B2] Carbon monoxide and hydrocarbons in an engine exhaust gas are oxidized by contact with a catalyst comprising platinum and palladium supported on a gamma-alumina coated alpha-alumina monolith which has been made by dipping the alpha-alumina monolith into an alumina hydrosol, removing the coated monolith from the hydrosol and spinning it to remove centrifugally excess hydrosol, drying and calcining, the coating process being repeated until the desired thickness of coating was obtained.
GB2991575A 1974-09-10 1975-07-16 Process for coating a refractory support with an active metal oxide film Expired GB1504060A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50460174A 1974-09-10 1974-09-10

Publications (1)

Publication Number Publication Date
GB1504060A true GB1504060A (en) 1978-03-15

Family

ID=24006969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2991575A Expired GB1504060A (en) 1974-09-10 1975-07-16 Process for coating a refractory support with an active metal oxide film

Country Status (5)

Country Link
JP (1) JPS51139585A (en)
CA (1) CA1061313A (en)
DE (1) DE2539764C3 (en)
FR (1) FR2284370A1 (en)
GB (1) GB1504060A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005025747A1 (en) * 2003-09-08 2005-03-24 Engelhard Corporation Coated substrate and process of preparation thereof
DE102006027700A1 (en) * 2006-06-14 2007-12-20 Süd-Chemie AG Device for filling a form body with wash coat suspension and for removing the suspension from the body for purification of exhaust gas from internal combustion engine, comprises unit for generating centrifugal force, and acceleration unit
WO2011064238A1 (en) 2009-11-27 2011-06-03 Süd-Chemie AG Coating suspension for coating catalyst substrates

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708482B1 (en) * 1993-07-29 1995-09-29 Inst Francais Du Petrole Process for the manufacture of catalysts on supports including a step of centrifuging the support after coating.
DE102005024108A1 (en) * 2005-05-25 2006-11-30 Süd-Chemie AG Process and apparatus for the preparation of catalysts and their use in the purification of exhaust gases
DE102006027701A1 (en) * 2006-06-14 2007-12-20 Süd-Chemie AG Removing excess liquid from a molded body with two frontal planar surface, inner cavity and channel comprises introducing liquid into the inner cavity and/or channel, applying external force and contacting frontal surface with porous pad

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005025747A1 (en) * 2003-09-08 2005-03-24 Engelhard Corporation Coated substrate and process of preparation thereof
DE102006027700A1 (en) * 2006-06-14 2007-12-20 Süd-Chemie AG Device for filling a form body with wash coat suspension and for removing the suspension from the body for purification of exhaust gas from internal combustion engine, comprises unit for generating centrifugal force, and acceleration unit
WO2011064238A1 (en) 2009-11-27 2011-06-03 Süd-Chemie AG Coating suspension for coating catalyst substrates
US8765624B2 (en) 2009-11-27 2014-07-01 Sued-Chemie Ip Gmbh & Co. Kg Coating suspension for coating catalyst substrates

Also Published As

Publication number Publication date
FR2284370B1 (en) 1979-09-14
DE2539764B2 (en) 1977-09-08
DE2539764A1 (en) 1976-04-15
FR2284370A1 (en) 1976-04-09
JPS51139585A (en) 1976-12-01
DE2539764C3 (en) 1978-08-24
CA1061313A (en) 1979-08-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee