GB1500331A - Reduction of nox emission in the preparation of catalysts and catalyst supports - Google Patents

Reduction of nox emission in the preparation of catalysts and catalyst supports

Info

Publication number
GB1500331A
GB1500331A GB198775A GB198775A GB1500331A GB 1500331 A GB1500331 A GB 1500331A GB 198775 A GB198775 A GB 198775A GB 198775 A GB198775 A GB 198775A GB 1500331 A GB1500331 A GB 1500331A
Authority
GB
United Kingdom
Prior art keywords
catalysts
catalyst supports
preparation
composition
reduction
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
GB198775A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid 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 American Cyanamid Co filed Critical American Cyanamid Co
Priority to GB198775A priority Critical patent/GB1500331A/en
Publication of GB1500331A publication Critical patent/GB1500331A/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
    • B01J23/88—Molybdenum
    • B01J23/883—Molybdenum and nickel
    • 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)
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • B01J37/0213—Preparation of the impregnating solution

Abstract

1500331 Preventing the generation of nitrogen oxides in the preparation of catalysts and catalyst supports AMERICAN CYANAMID CO 16 Jan 1975 1987/75 Heading B1E Catalyst supports or supported catalysts are made by providing a composition comprising a preformed inorganic oxide support material, at least one compound which is capable of producing NO x when calcined and sufficient urea to suppress the formation of NO x when the composition is calcined and calcining the composition. The urea may be added to a promoter solution used to impregnate the support material or added to a muller mix used to form the support.
GB198775A 1975-01-16 1975-01-16 Reduction of nox emission in the preparation of catalysts and catalyst supports Expired GB1500331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB198775A GB1500331A (en) 1975-01-16 1975-01-16 Reduction of nox emission in the preparation of catalysts and catalyst supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB198775A GB1500331A (en) 1975-01-16 1975-01-16 Reduction of nox emission in the preparation of catalysts and catalyst supports

Publications (1)

Publication Number Publication Date
GB1500331A true GB1500331A (en) 1978-02-08

Family

ID=9731594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB198775A Expired GB1500331A (en) 1975-01-16 1975-01-16 Reduction of nox emission in the preparation of catalysts and catalyst supports

Country Status (1)

Country Link
GB (1) GB1500331A (en)

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Legal Events

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