Patent ID: 6946422
Filing Date: 2005-09-20
Classification: B01J,C07C

Abstract:
1. A process for preparing a catalyst for the oxidation of an olefin to an unsaturated aldehyde comprising: a) dissolving a bismuth compound to form a solution or a slurry in an organic acid; b) bringing the bismuth compound in contact with a molybdenum compound, an iron compound, and a cesium compound in the solution or slurry; c) removing liquid from the solution or the slurry to form a solid; d) drying the solid; and e) calcining the solid to form oxides of the metals to form a catalyst having the general formula: wherein a is in the range from 0.1 to 1.5, c is in the range from 0.2 to 5.0, g is in the range from 0.1 to 1.5 and x is determined by the valences of the other components.