Patent ID: 9468908
Filing Date: 2016-10-18
CPC Classification: B01J,C07C

Claim Text:
1. A heterogeneous catalyst comprising platinum and rhodium on a support selected from the group consisting of a zirconia support comprised of zirconia and no more than about 5 wt % of other materials, a stabilized (doped) zirconia support comprised of zirconia and between about 1 wt % and about 40 wt % of dopants, and mixtures thereof, wherein: (a) the molar ratio of platinum to rhodium is in the range of from about 3:1 to about 1:2, (b) platinum is present in an amount in the range of from about 0.4 wt % to about 1.4 wt %, (c) rhodium is present in an amount in the range of from about 0.1 Wt % to about 0.8 wt %, and (d) the average pore diameter of the support is in the range of from about 5 nm to about 70 nm.