| 摘要 |
An object of the present invention is to provide a method for preparing a catalyst which is useful for synthesis of acrylonitrile due to ammoxidation of organic compounds, especially ammoxidation of propylene. <??>The present invention is directed to a method for preparing an ammoxidation catalyst comprising molybdenum (component (1)), bismuth (component (2)), at least one element selected from the group consisting of nickel, cobalt, zinc, magnesium, manganese, and copper (component (3)), and at least one element selected from the group consisting of lanthanum, cerium, praseodymium and neodymium (component (4)), which is used for ammoxidation of an organic compound, said method comprising: a first solution preparing step of preparing a first solution which contains at least a portion of feedstocks of the component (1), at least a portion of feedstocks of the component (2) and at least a portion of feedstocks of the component (3), and does not contain feedstocks of the component (4), and a second solution preparing step of preparing a second solution by adding at least the feedstocks of the component (4) to the first solution. |
