Table I

Yields of Vinyl Acetate Monomer as Reported by DuPont (4)

Catalyst Space time yield g/l-h Selectivity, %
Au/Pd/KOAc 764 93.6
Pd/KOAc 100 95.4
Au/Pd 594 91.6
Pd 124 94.7

Fixed bed performance of Au/Pd/KOAc catalysts after 40 h on stream. Test conditions: 165°C, 115 psig, with feed consisting of ethene, acetic acid, oxygen and nitrogen