| 摘要 |
A process for the preparation of an oxidation catalyst, consisting of molybdenum, bismuth, a group II metal of the periodic table and oxygen, which comprises in combination the steps of combining (a) a dispersion in which a member selected from the group consisting of the oxides of antimony and bismuth antimonate has been suspended, (b) a solution of a salt of a group II metal of the periodic table, (c) a solution of a member selected from molybdic acid and the salts thereof, and (d) a solution of a bismuth salt; adjusting the pH of the combined solution to a value of 1 - 8 to thereby cause the formation of a coprecipitate containing the four components of molybdenum, antimony, bismuth and group II metal; separating the resulting coprecipitate from the mother liquor; washing the coprecipitate; and thereafter calcining the washed coprecipitate at a temperature ranging from 400 DEG and 800 DEG C. |
