Process for the catalytic disproportionation of methylnaphthalen

Details Process for the catalytic disproportionation of methylnaphthalen Process for the catalytic disproportionation of methylnaphthalen

1989-12-21

1991-01-01

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By alkyl or aryl transfer between molecules, e.g.,...

C07C 200

Patent

active

049820400

ABSTRACT:
A methylnaphthalene such as 2-methylnaphthalene undergoes catalytic disproportionation to naphthalene and a mixture of dimethylnaphthalene isomers, preferably containing substantial quantities of 2,6-dimethylnaphthalene, employing catalyst comprising zeolite characterized by an X-ray diffraction pattern including interplanar d-spacings at 12.36.+-.0.4, 11.03.+-.0.2, 8.83.+-.0.14, 6.18.+-.0.12, 6.00.+-.0.10, 4.06.+-.0.07, 3.91.+-.0.07 and 3.42.+-.0.06 Angstroms.

REFERENCES:
patent: 3855328 (1974-12-01), Hedge
patent: 4418235 (1983-11-01), Haag et al.
patent: 4439409 (1984-03-01), Puppe et al.
patent: 4465253 (1987-05-01), Chu et al.
patent: 4670615 (1987-06-01), Valyocsik
patent: 4761514 (1988-08-01), Menard
patent: 4826667 (1989-05-01), Zones et al.

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