Patent ID: 6015930
Filing Date: 2000-01-18
Classification: C07C

Abstract:
A method of making 2,6-dimethylnaphthalene comprising:(a) contacting a hydrocarbon feed comprising a dimethylnaphthalene isomer or mixture of isomers selected from the group consisting of 1,6-dimethylnaphthalene, 1,5-dimethylnaphthalene, 2,7-dimethylnaphthalene, 1,7-dimethylnaphthalene, 1,8-dimethylnaphthalene, and partially or fully hydrogenated counterparts thereof with a catalyst, the catalyst being a combination of an acidic catalyst with a metal, in the presence of hydrogen gas to obtain a hydroisomerized mixture comprising 2,6-dimethyltetralin, 2,6-dimethyldecalin; and(b) contacting the hydroisomerized mixture with a reforming catalyst to dehydrogenate the hydroisomerized mixture thus obtaining a dehydrogenated mixture comprising 2,6-dimethylnaphthalene.