Mitsubishi Gas Chemical Company, Inc.

Yoichi Kyuko

Makoto Takagawa

Kenji Inamasa

Shinji Ozawa

A process for producing dimethylnaphthalene by the dehydrogenation of dimethyl-tetrahydronaphthalene which comprises carrying out the dehydrogenation reaction in a gaseous state at a temperature of 200.degree. to 350.degree. C. in the presence of a diluting medium and by the use of a platinum and/or palladium catalyst supported on an activated carbon carrier. The process is capable of producing industrially useful dimethylnaphthalene with a high yield and a high selectivity and minimized side reactions, over a long stabilized period.

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Tsukuba, Japan

Yoichi Kyuko