Honeycomb catalyst for vinyl acetate synthesis
OwnerIoan Nicolau, Philip M. Colling +1inventors
InventorsIoan Nicolau, Philip M. Colling, Leland R. Johnson
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Abstract
A catalyst particularly useful in the preparation of unsaturated esters such as the reaction of ethylene, oxygen and acetic acid in a vapor phase to form vinyl acetate. The catalyst comprises a honeycomb carrier coated with silica and containing palladium and gold throughout the silica coat. Such catalysts show reduced pressure drop and a high space time yield for vinyl acetate.
Claims17
A method of preparing an unsaturated ester comprising reacting in a gas phase an olefin, an organic carboxylic acid and oxygen in the presence of a catalyst, the catalyst comprising a ceramic honeycomb carrier having-cells extending the entire length of the carrier, the carrier being provided with a silica coat within at least the cells, the catalyst further comprising palladium metal and gold metal distributed throughout the silica coat.
Dependencies are inferred from the claim text.