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This paper reports the first performance of a crystalline SbRe2O6 catalyst, which is a new family of Re mixed oxide, for the selective ammoxidation reactions of isobutylene to methacrylonitrile and propene to acrylonitrile. The SbRe2O6 with alternate (Re2O6)3− and (SbO)+ layers showed much better performance than two other known Re–Sb–O compounds SbOReO4⋅2H2O and Sb4Re2O13 with tetrahedral (ReO4)−...
The catalytic performance and structures of multicomponent “MoVNbTe” oxides have been studied to find the correlation among the performance, active phases, and preparation conditions. The catalyst with the composition MoV 0.4 Nb 0.1 Te 0.2 O x showed high activity and selectivity for propane ammoxidation reaction (ca. 50% selectivity to acrylonitrile at ca. 90% conversion)...
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