【摘要】 以超临界CO₂为反应介质,用过氧化氢作为氧源,使甲苯在反应釜内发生均相氧化反应。反应结束后,将产物蒸馏回收,得到未反应的甲苯和苯甲醛产品．CO₂循环利用。研究发现,反应的最优化条件为反应压力25MPa,反应温度180℃,反应时间4h,苯甲醛的收率为1．535%,过氧化氢与甲苯的最佳物质的量比为2．5,氧化反应为一级反应,反应活化能为76kJ/mol。更多还原

【Abstract】 Toluene is oxidized by hydrogen peroxide as homoge- neous reaction in the supereritical carbon dioxide.The toluene with- out reactive and benzaldehyde can be gained through distillation after the reaction is over,and carbon dioxide can be reused to form a green technology.The experimental result shows that the most optimized condition is P=25 MPa.θ=180℃,t=4h,Y_benzaldehyde=1.535%, and the most optimized molar ratio between hydrogen peroxide and toluene is 2.5.The reactive kinetic energy is 76 kJ/mol.更多还原