| abstract |
(57) Abstract: A method for preparing a mixed metal oxide catalyst useful in the conversion of an alkane to an unsaturated carboxylic acid or unsaturated nitrile. A empirical formula: Mo a V b E c X d O e ( wherein, E is a Te and / or Sb, X is N b, Ta, etc .; when a = 1, b = 0.01-1. 0, c = 0.01-1.0, d = 0.01-1.0, and e depends on the oxidation state of the other elements). The method (A) mixing a compound of Mo, V, E and X with at least one solvent to form a gel, (b) aging the formed gel, and (c) firing the gel. Including methods. |