Selective Oxidation Of Propane To Acrylic Composite Catalyst Characterization Studies

In the beginning of the paper, the present study and the actual applied complexion of catalyst materials for selective oxidation of propane to acrylic acid were reviewed in detail. Our researchful purpose is the mixed oxide catalyst. Acrylic acid and its esters are important industrial materials widely used in many fields, such as the produce of dope, textile, and petrochemicals. Complex metal-oxide is one of the most potential catalysts at the present time, which has very excellent catalysis for the directly selective oxidation of propane to acrylic acid, and has been studied extensively in recent years. Selective oxidation of propane to produce acrylic acid is an important way to use propane effectively. Compared with the oxidation of propane to produce acrylic acid, the material of this way is very rich and inexpensive. It has a potential foreground of industrial applications.M01.0V0.3Te0.23Nb0.12On complex metal oxide catalysts were prepared by solution method, which showed good catalytic performance for the selective oxidation of propane to acrylic acid. The effects of composition and preparation conditions on the catalytic performance of M01.0V0.3Te0.23Nb0.12On catalyst were investigated. Furthermore, the effects of preparation methods on the structure were also investigated by XRD, SEM and EDX. The main results are summarized as follows: the complex metal oxide catalysts, which were prepared under the pH value of the solution about 4.0, drying via rotary evaporation method, followed by calcinations under a non-flow Argon atmosphere at 600℃, have better crystal structure (M1 and M2 phases); smaller granules and distributing more uniformity; constitutes of each element closer to theoretic valve. Greatly increasing the activity and selectivity of the catalysts for propane selective oxidation to acrylic acid, the catalysts possessed the better body structure and surface structure.