Chemistry of hydrocarbon compounds – Plural serial diverse syntheses – To produce aromatic
Patent
1977-10-05
1981-11-10
Gantz, Delbert E.
Chemistry of hydrocarbon compounds
Plural serial diverse syntheses
To produce aromatic
585439, 585445, C07C 406
Patent
active
043000070
ABSTRACT:
A method for preparing C.sub.3 -C.sub.4 olefins and vinylaromatic compounds, viz. styrene, vinyltoluenes or vinylxylenes which comprises alkylation of toluene or methyl derivatives thereof with a C.sub.2 -C.sub.3 olefin into the methyl group. The resulting alkylaromatic compounds are subjected to conversion to the desired products in the presence of ethylene on a catalyst consisting of chromium oxide, tungsten oxide and an oxide of an alkali or alkali-earth metal supported by a carrier.
The method according to the present invention makes it possible to increase the yield of vinylaromatic compounds, obtain individual isomers of vinyltoluene or vinylxylene and efficiently utilize the part of the alkyl radical of the alkylaromatic compound lost in the prior art method.
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Polyakov Sergei A.
Shapiro Aron L.
Boska Joseph A.
Gantz Delbert E.
Lilling Burton L.
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