MoO sub 3 catalysts promoted by MnMoO sub 4. II. Effect of O sub 2 concentration and temperature in selective oxidation of 1-butene to maleic anhydride

Journal Article · Sun Apr 01 00:00:00 EST 1990 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(90)90299-Y· OSTI ID:6410353

Gill, R C; Ozkan, U S ^[1]

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1. Ohio State Univ., Columbus (USA)

In a previous paper, the authors have reported the results of a study where they focused their attention on catalytic activity and selectivity of pure MoO{sub 3} and attempted to modify its catalytic behavior by bringing its surfaces into close contact with MnMoO{sub 4}. While their characterization experiments revealed the two-phase nature of the MnMoO{sub 4}/MoO{sub 3} catalyst, the activity studies showed a pronounced promoter effect in selective oxidation of both 1-butene and 1,3-butadiene to maleic anhydride, suggesting a possible synergy between the two phases. This note presents the results of their selective oxidation studies where the effect of temperature and oxygen partial pressure on catalytic behavior of the pure phases (MoO{sub 3} and MnMoO{sub 4}) as well as the two phase catalyst (MnMoO{sub 4}/MoO{sub 3}) has been investigated in conversion of 1-butene to maleic anhydride. All catalysts were characterized in detail using BET surface area measurement, x-ray diffraction, scanning electron microscopy, energy dispersive x-ray analysis, laser Raman spectroscopy and Raman microprobe techniques.

• OSTI ID: 6410353
• Journal Information: Journal of Catalysis; (USA), Vol. 122:2; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
BUTENES
OXIDATION
MANGANESE COMPOUNDS
CATALYTIC EFFECTS
MOLYBDENUM OXIDES
ANHYDRIDES
MALEIC ACID
MOLYBDATES
OXYGEN
PARTIAL PRESSURE
PRESSURE DEPENDENCE
RAMAN SPECTROSCOPY
SCANNING ELECTRON MICROSCOPY
SURFACE AREA
SYNTHESIS
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
ALKENES
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL REACTIONS
COHERENT SCATTERING
DICARBOXYLIC ACIDS
DIFFRACTION
ELECTRON MICROSCOPY
ELEMENTS
HYDROCARBONS
LASER SPECTROSCOPY
MICROSCOPY
MOLYBDENUM COMPOUNDS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SCATTERING
SPECTROSCOPY
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
020400* - Petroleum- Processing