| 摘要 |
PURPOSE:To produce p-xylene and ethylene, in high selectivity and yield, by reacting toluene with methanol at a specific temperature in the presence of a catalyst obtained by impregnating a crystalline borosilicate with a specific amount of a monounclear organosilicon compound. CONSTITUTION:p-Xylene and ethylene are produced simultaneously, by reacting toluene with methanol at 300-700 deg.C (preferably 400-650 deg.C) using a catalyst obtained by impregnating 100pts.wt. of a crystalline borosilicate with 0.05- 10pts.wt. of a mononuclear organosilicon compound (e.g. organosilane, alkylsilicate, etc.). The above catalyst can be prepared usually by dissolving a mononuclear organosilicon compound in an inert solvent such as n-hexane, immersing a crystalline borosilicate in the solution, and calcining the borosilicate at 550-900 deg.C. |
