Preparation method of catalyst for preparing acrylic acid through selective oxidation of propane

The invention relates to a preparation method of a catalyst for preparing acrylic acid through selective oxidation of propane, in particular to a method for preparing the catalyst for preparing acrylic acid through oxidation of propane by taking Mo, V, Te and Nb as active components, selecting a fixed molar ratio of Mo: V: Te: Nb = (8.20-10.15): (1.5-2.5): (1.50-2.35): (1.80-2.42) and adding an auxiliary agent NiSb2O6 into the Mo-V-Te-Nb active components. The catalyst for preparing acrylic acid through selective oxidation of propane has the characteristics of good selectivity, high yield, good stability and the like. 本发明为一种丙烷选择性氧化制丙烯酸催化剂的制备方法，具体涉及的是以Mo、V、Te、Nb为活性组分，选择固定摩尔比Mo:V:Te:Nb＝(8.20～10.15):(1.5～2.5):(1.50～2.35):(1.80～2.42)，通过在Mo-V-Te-Nb活性组分中加入助剂NiSb2O6来制备丙烷氧化制丙烯酸催化剂的方法。本发明所述丙烷选择性氧化制丙烯酸催化剂具有选择性好、收率高、稳定性好等特点。