Selective synthesis of 2,6-dimethylnaphthalene (2,6-DMN), a preferred intermediate of high performance polymeric materials, has been widely studied. Methylation of 2-methylnaphthalene (2-MN) with methanol is a more promising route to produce 2,6-DMN owing to the simple technologic process, cheap and wide source of raw materials. In this work, the effects of zeolites with different types and particle size and different modification materials on methylation of 2-MN were studied to prepare the catalysts with h...