CPC B01J 23/52 (2013.01) [B01J 21/04 (2013.01); B01J 21/08 (2013.01); B01J 35/008 (2013.01); C07C 67/39 (2013.01); B01J 6/001 (2013.01); B01J 37/031 (2013.01)] | 13 Claims |
1. A heterogeneous catalyst comprising a support and gold, wherein: (i) said support comprises 0.1 to 15 wt % alumina and 60 to 95 wt % silica, (ii) said catalyst comprises from 0.9 to 4 wt % of gold, (iii) at least 90 wt % of the gold is in the outer 60% of catalyst volume, and (iv) particles of the catalyst have an average diameter from 300 microns to 30 mm; wherein weight percentages are based on weight of the catalyst.
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