Chemistry of hydrocarbon compounds – Aromatic compound synthesis – Having alkenyl moiety – e.g. – styrene – etc.
Patent
1984-09-14
1988-01-19
Dixon, Jr., William R.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
Having alkenyl moiety, e.g., styrene, etc.
585444, C07C 264
Patent
active
047206047
ABSTRACT:
Dehydrogenation catalyst compositions for alkylaromatics and dehydrogenation processes 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, and a catalyst modifier combination of calcium and bismuth compounds, e.g., calcium oxide and bismuth trioxide. Utilization of particular amounts of calcium and bismuth compounds in dehydrogenation catalyst compositions of this type will provide a catalyst especially suitable for promoting the selective dehydrogenation of para-ethyltoluene to form para-methylstyrene in improved yields or the selective dehydrogenation of ethylbenzene to form styrene in improved yields.
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Aksman Stanislaus
Dixon Jr. William R.
Gilman Michael G.
McKillop Alexander J.
Mobil Oil Corporation
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