In situ FTIR study of n-butane selective oxidation to maleic anhydride on V-P-O catalysts

Journal Article · Wed Nov 19 23:00:00 EST 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100282a015· OSTI ID:7032764

Wenig, R W; Schrader, G L

The selective oxidation of n-butane to maleic anhydride on vanadium-phosphorus-oxygen (V-P-O) catalysts having P to V ratios of 0.9, 1.0, and 1.1 was studied by transmission infrared spectroscopy. Catalysts were exposed to mixtures of 1.5% n-butane in air at temperatures from 100 to 500/sup 0/C. Adsorbed n-butane, maleic anhydride, and carbon oxide species were observed on the catalyst surfaces. In addition, adsorbed maleic acid and highly reactive olefinic species could be detected. The nature of the adsorbed species present on the catalyst surface was dependent on the catalyst phosphorus loading, the reaction temperature, and the time of exposure under reaction conditions.

• Research Organization: Iowa State Univ., Ames
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 7032764
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:24; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
ADSORPTION
ALKANES
ANHYDRIDES
BUTANE
CARBON COMPOUNDS
CARBON OXIDES
CARBOXYLIC ACIDS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DATA
DICARBOXYLIC ACIDS
ELEMENTS
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
INFRARED SPECTRA
MALEIC ACID
METALS
NONMETALS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHOSPHORUS
SORPTION
SPECTRA
SPECTROSCOPY
SYNTHESIS
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
TRANSITION ELEMENTS
VANADIUM