| abstract |
The invention provides a process for preparing vinyl acetate, wherein, in a heterogeneously catalysed, continuous gas phase process, a gaseous mixture comprising ethylene, acetic acid and oxygen is reacted in the presence of a supported catalyst in a reactor, the gas mixture (product gas stream) leaving the reactor is worked up, and the remaining gas mixture (cycle gas), after being recharged with ethylene, acetic acid and oxygen, is recycled into the reactor, characterized in that the selectivity is improved by using caesium acetate as promoter. The application likewise relates to supported catalysts comprising palladium, gold and caesium acetate. |