Co-production of indene and styrene
AssigneeThe Standard Oil Company
InventorOliver A. Kiikka
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Abstract
A process for the co-production of indene and styrene from a mixture of cyclopentadiene or dicyclopentadiene and butadiene is disclosed. The process comprises the steps of reacting cyclopentadiene or dicyclopentadiene with butadiene in a Diels-Alder reaction to form a mixture of tetrahydroindene, vinylcyclohexene and vinylnorbornene followed by the recovery of the tetrahydroindene and vinylcyclohexene, and the oxydehydrogenation of the tetrahydroindene/vinylcyclohexene mixture utilizing a composite catalyst comprising cobalt oxide and molybdenum oxide.
Claims8
A process for co-production of indene and styrene from a mixture of cyclopentadiene or dicyclopentadiene and butadiene which comprises the steps of
- (a) reacting cyclopentadiene, dicyclopentadiene or mixtures thereof with butadiene at an elevated temperature pressure to form a mixture comprising tetrahydroindene, vinylcyclohexene and vinylnorbornene,
- (b) recovering the tetrahydroindene and vinylcyclohexene,
- (c) contacting the mixture of tetrahydroindene and vinylcyclohexene with an oxygen donor and a catalyst comprising cobalt oxide and molybdenum oxide at a temperature above about 300.degree. C. for a period of from 0.1 to 30 seconds, and
- (d) recovering a mixture of indene and styrene.
Dependencies are inferred from the claim text.