| abstract |
The present invention relates to a shell catalyst, comprising a ZrO2-containing catalyst support with a shell in which Pd and Au are contained, wherein the Au/Pd atomic ratio of the shell catalyst is 0.2 to 1.2. To provide a shell catalyst which has a relatively high alkenyl acetate activity, it is proposed that the proportion of Pd in the shell catalyst is less than/equal to 0.75 wt%. |