Method of making dimethylnaphthalenes

Chemistry of hydrocarbon compounds – Plural serial diverse syntheses – To produce aromatic

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585323, 585459, 585466, 585467, 208135, 208137, C07C 100, C07C 270, C07C 268, C10G 3506

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active

059556412

ABSTRACT:
The method of the invention includes making dimethyinaphthalenes by first contacting, in an alkylation zone, at alkylation conditions, a toluene-containing stream with a pentene-containing stream in the presence of an acid alkylation catalyst. At least a portion of the toluene and pentenes react to form pentyltoluenes. At least a portion of the pentyltoluenes is then contacting in a reforming zone with reforming catalyst, at reforming conditions. At least a portion of the pentyltoluenes is converted to dimethylnaphthalenes.

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U.S. application No. 08/892,508, filed Jul. 14, 1997, entitled "Method of Making 2,6-Dimethylnaphthalene from Other Dimethylnaphthalene Isomers and From Dimethyltetralins/Dimethyldecalins with a Methyl Group on Each Ring", Donald S. Santilli et al.
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