| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a metallic oxide catalyst containing iron, antimony, and tellurium, by which the metallic oxide catalyst excellent in physical properties and activity can be manufactured with high reproducibility without necessitating complicated steps nor complicated apparatuses. <P>SOLUTION: This method for manufacturing the metal oxide catalyst containing iron, antimony, and tellurium comprises: a step (1) to prepare a solution or slurry (X) containing an iron component raw material, an antimony component raw material, and a tellurium component raw material; and a step (2) to dry and fire the solution or slurry (X). The step (1) includes: a step (a) to prepare another solution or slurry (Y) of pH≤7 containing the iron component raw material, the antimony component raw material, and a nitrate ion; and a step (b) to heat-treat the solution and slurry (Y) at ≥60°C for ≥30 minutes. The tellurium raw material is divided into two portions so that one of two portions is added to the solution or slurry before the step (b) and the other is added to the solution or slurry after the step (b). <P>COPYRIGHT: (C)2005,JPO&NCIPI |
