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US 5,338,716 AGranted
Non-oxide metal ceramic catalysts comprising metal oxide support and intermediate ceramic passivating layer
AssigneeAkzo Nobel N.V.
InventorsKelly B. Triplett, Johst H. Burk, Fawzy G. Sherif, Willem Vreugdenhil
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Abstract
Supported non-oxide metal carbide-containing catalysts are provided which comprise: (a) an oxide support, such as alumina or cordierite; (b) a passivating layer of a ceramic, such as silicon carbide; and (c) a non-oxide metal ceramic catalytic component, such as a Group VI metal carbide or nitride, preferably tungsten carbide or molybdenum carbide.
Claims10
A supported non-oxide metal ceramic catalyst which comprises:
- (a) an oxidic support;
- (b) a passivating layer, on the support, of a ceramic silicon carbide;
- and
- (c) a non-oxide metal-containing ceramic catalyst component from the group consisting of Group VIB transitional metal carbide and nitride on the passivating layer.
1 more element
Dependencies are inferred from the claim text.