Partially Oxidized Iron-Antimony Catalysts. I. Effect of Chemical Composition on Activity and Selectivity in Propylene Oxidative Ammonolysis
Kinetics and Catalysis
, E-ISSN: 1608-3210
Boreskov Institute of Catalysis SB RAS
Partial oxidation of hydrocarbons is of interest for obtaining monomers for the synthesis of polymer materials. The influence of the chemical composition of iron-antmony oxide catalysts in the oxidative ammonolysis of propylene was investigated. Catalysts containing 42 to 44% ferric oxide or less possess high activity and selectivity. Catalysts containing unbound ferric oxide catalyze the process in the direction of formation of highly oxidized products. The patterns of variationf the activity and selectivity obtained were discussed from the standpoint of aditivity of the catalytic action of ferric oxide, iron antimonate, and antimony oxide. The formation of iron antimonate in an iron-antimony oxide system is the main cause of the increase in the selectivity of the catalysts.