| abstract |
Para-ethyltoluene dehydrogenation catalyst compositions and processes for using such catalysts are provided. The catalyst compositions comprise a catalytically active iron compound, e.g., iron oxide; a potassium catalyst promoter, e.g., potassium carbonate; an optional chromium compound stabilizer, e.g., chromic oxide, a copper compound, e.g., copper chromite, and a zinc compound, e.g., zinc ferrate. Utilization of particular amounts of zinc ferrate and copper chromite in dehydrogenation catalyst compositions of this type will provide a catalyst especially suitable for promoting the highly selective dehydrogenation of para-ethyltoluene to form para-methylstyrene with excellent conversion. |