GB1477089A - Catalyst and process for redicing nitrogen oxides - Google Patents

Catalyst and process for redicing nitrogen oxides

Info

Publication number
GB1477089A
GB1477089A GB4737075A GB4737075A GB1477089A GB 1477089 A GB1477089 A GB 1477089A GB 4737075 A GB4737075 A GB 4737075A GB 4737075 A GB4737075 A GB 4737075A GB 1477089 A GB1477089 A GB 1477089A
Authority
GB
United Kingdom
Prior art keywords
oxide
redicing
catalyst
nitrogen oxides
calcining
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
GB4737075A
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.)
Ube Corp
Original Assignee
Ube Industries Ltd
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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to GB4737075A priority Critical patent/GB1477089A/en
Publication of GB1477089A publication Critical patent/GB1477089A/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
    • B01J23/70—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
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/86—Chromium
    • B01J23/862—Iron and chromium
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
    • B01J27/053—Sulfates

Abstract

1477089 Nitrogen oxide reduction catalysts UBE INDUSTRIES Ltd 18 Nov 1975 47370/ 75 Heading B1E [Also in Division Cl] Catalysts comprise a base of an iron oxide and a chromium oxide, and 0.1-20% by wt of the base of aluminium sulphate. They may be made by calcining a mixture of an iron salt, hydroxide or oxide with a chromium salt, hydroxide or oxide at up to 500‹C either adding the sulphate before the calcination or adding it afterwards and calcining at up to 500‹C.
GB4737075A 1975-11-18 1975-11-18 Catalyst and process for redicing nitrogen oxides Expired GB1477089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4737075A GB1477089A (en) 1975-11-18 1975-11-18 Catalyst and process for redicing nitrogen oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4737075A GB1477089A (en) 1975-11-18 1975-11-18 Catalyst and process for redicing nitrogen oxides

Publications (1)

Publication Number Publication Date
GB1477089A true GB1477089A (en) 1977-06-22

Family

ID=10444723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4737075A Expired GB1477089A (en) 1975-11-18 1975-11-18 Catalyst and process for redicing nitrogen oxides

Country Status (1)

Country Link
GB (1) GB1477089A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19951117