GB1478093A - Carrier-supported catalyst - Google Patents

Carrier-supported catalyst

Info

Publication number
GB1478093A
GB1478093A GB825775A GB825775A GB1478093A GB 1478093 A GB1478093 A GB 1478093A GB 825775 A GB825775 A GB 825775A GB 825775 A GB825775 A GB 825775A GB 1478093 A GB1478093 A GB 1478093A
Authority
GB
United Kingdom
Prior art keywords
alumina
calcining
catalyst
delta
alpha
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
GB825775A
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.)
Hoechst AG
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
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of GB1478093A publication Critical patent/GB1478093A/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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

1478093 Exhaust gas catalyst HOECHST AG 27 Feb 1975 [14 March 1974] 8257/75 Heading B1E [Also in Division Cl] A supported-catalyst suitable for oxidation of carbon monoxide and hydrocarbons in I.C. engine exhaust gases consists of 0.2-10% wt, based on the weight of support of cerium in oxide form and a support which is a mixture of delta-alumina and alpha-alumina having an alkali content of up to 0.2% wt. The catalyst may be formed by compressing hydrous alumina, e.g. boehmite, or an anhydrous alumina other than alpha-alumina, e.g. delta-alumina, to form shaped bodies; calcining at 1000- 1250‹C for 10-20 hours; impregnating with a decomposable cerium salt; drying at 130- 150‹C; calcining at 200-300‹C; calcining at 450-550‹C; and calcining at 700-900‹C.
GB825775A 1974-03-14 1975-02-27 Carrier-supported catalyst Expired GB1478093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2412230A DE2412230A1 (en) 1974-03-14 1974-03-14 CARRIER CATALYST

Publications (1)

Publication Number Publication Date
GB1478093A true GB1478093A (en) 1977-06-29

Family

ID=5910045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB825775A Expired GB1478093A (en) 1974-03-14 1975-02-27 Carrier-supported catalyst

Country Status (16)

Country Link
JP (1) JPS5230397B2 (en)
BE (1) BE826576A (en)
CA (1) CA1050522A (en)
CH (1) CH595883A5 (en)
CS (1) CS187464B2 (en)
DD (1) DD119636A5 (en)
DE (1) DE2412230A1 (en)
DK (1) DK102975A (en)
ES (1) ES435551A1 (en)
FR (1) FR2263818A1 (en)
GB (1) GB1478093A (en)
IL (1) IL46723A (en)
IT (1) IT1032287B (en)
SE (1) SE7502826L (en)
SU (1) SU656477A3 (en)
ZA (1) ZA751144B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232613A (en) * 1989-06-17 1990-12-19 Atomic Energy Authority Uk Catalyst for oxidising carbonaceous particles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1120457A (en) * 1976-08-20 1982-03-23 Russell M. Bimber Preparaion of ketones
JPS57209819A (en) 1981-06-19 1982-12-23 Nissan Motor Co Ltd Preparation of active alumina pellet supporting cerium uniformly
GB8808240D0 (en) * 1988-04-08 1988-05-11 Knowsley Contract Chem Ltd Catalyst & its use in oxidation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232613A (en) * 1989-06-17 1990-12-19 Atomic Energy Authority Uk Catalyst for oxidising carbonaceous particles
US5059575A (en) * 1989-06-17 1991-10-22 United Kingdom Atomic Energy Authority Catalyst for the oxidation of carbonaceous particulates and method of making the catalyst
GB2232613B (en) * 1989-06-17 1993-04-28 Atomic Energy Authority Uk Catalytic treatment

Also Published As

Publication number Publication date
SU656477A3 (en) 1979-04-05
DE2412230A1 (en) 1975-09-18
CS187464B2 (en) 1979-01-31
JPS5230397B2 (en) 1977-08-08
ES435551A1 (en) 1976-12-16
BE826576A (en) 1975-09-12
ZA751144B (en) 1976-01-28
IL46723A0 (en) 1975-04-25
JPS511390A (en) 1976-01-08
DD119636A5 (en) 1976-05-05
FR2263818A1 (en) 1975-10-10
IL46723A (en) 1978-03-10
CH595883A5 (en) 1978-02-28
IT1032287B (en) 1979-05-30
DK102975A (en) 1975-09-15
CA1050522A (en) 1979-03-13
SE7502826L (en) 1975-09-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee