Chemistry of hydrocarbon compounds – Aromatic compound synthesis – Having alkenyl moiety – e.g. – styrene – etc.
Patent
1993-06-14
1994-08-09
McFarlane, Anthony
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
Having alkenyl moiety, e.g., styrene, etc.
585435, 585658, C07C 5367, C07C 548
Patent
active
053368223
ABSTRACT:
4-Vinylcyclohexene is converted to styrene in the presence of a catalyst comprising tin, antimony, and oxygen. The feed stream to be contacted with the catalyst comprises water, 4-vinylcyclohexene, and oxygen. A ratio of water to 4-vinylcyclohexene above about 12:1, preferably above about 14:1, significantly increases the half-life of the catalyst. The catalyst is prepared by coprecipitating a tin chloride and an antimony chloride followed by calcination of the precipitate at a temperature in the range from 850.degree. C. to 1000.degree. C.
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Achutamurthy P.
McFarlane Anthony
O'Keefe Robert M.
The Dow Chemical Company
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