| 摘要 |
PURPOSE:To develop a catalyst for isomerizing xylene in a ethylbenzene-contg. xylene mixture and subjecting to dealkylation of ethylbenzene, by incorporating to the catalyst two kinds of different zeolites as essential components and specified metallic components. CONSTITUTION:Present invention concerns with a catalyst used for dealkylation of ethylbenzene in xylene contg. p-xylene, m-xylene, o-xylene and also ethylbenzene, and as well as for a reaction for converting m-xylene and o-xylene into p-xylene. After specified crystalline aluminosilicate zeolite and mordenite-type zeolite are mixed and pelletized, ammonium ions are introduced to carry out an ionexchange treatment. The inoexchanged material is then immersed in a solution contg. at least one kind of compound selected from Re, Mo, and W, and a catalyst capable of converting m-xylene and o-xylene into useful p-xylene is obtd. |
