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5848023 
Journal Article 
Selective oxidation of n-butane to maleic anhydride by model VPO catalysts 
Moser, TP; Schrader, GL 
1985 
Yes 
Journal of Catalysis
ISSN: 0021-9517
EISSN: 1090-2694 
92 
2 
216-231 
The selective oxidation of n-butane to maleic anhydride was studied using two model vanadium-phosphorus-oxygen catalysts, β-VOPO4 and (VO)2P2O7. Detailed information concerning the synthesis and characterization of these phases was developed, which indicated the sensitivity of the syntheses to preparation procedures. New information regarding the possible reaction pathway was provided by the detection of 1-butene, 2-butenes, and 1,3-butadiene simultaneously with the production of maleic anhydride. The stability of the pure phases under reaction conditions was examined using in situ laser Raman spectroscopy.