Oxidation of O-xylene on some olefin oxidation catalysts

Journal Article · Mon May 01 04:00:00 EDT 1978 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(78)90360-3· OSTI ID:5862433

Gasior, M; Grzybowska, B

The oxidation of o-xylene to phthalic anhydride was tested on bismuth, cobalt, nickel, and magnesium molydates, tin-antimony and vanadium-titanium mixed oxides, and molybdenum trioxide. On cobalt and nickel molybdates, 50% conversion was obtained at 400/sup 0/ and 380/sup 0/C, respectively, and maximum yields were 34.2 and 27.0%, respectively. The bismuth and magnesium molybdates and tin-antimony oxide catalyzed mainly the first oxidation step and yielded mainly tolualdehyde. An analogy with the known activity of these two catalyst groups for propylene conversion to acrylic acid or acrolein, respectively, and possible mechanisms and active sites are discussed. Tables and 20 references.

• Research Organization: Polish Academy of Science, Krakow
• OSTI ID: 5862433
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 52:3; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKALINE EARTH METAL COMPOUNDS
ANTIMONY COMPOUNDS
ANTIMONY OXIDES
AROMATICS
BISMUTH COMPOUNDS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPOUNDS
HYDROCARBONS
KINETICS
MAGNESIUM COMPOUNDS
MOLYBDATES
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REACTION KINETICS
TIN COMPOUNDS
TIN OXIDES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES
XYLENES