【摘要】 将La、Ce和Bi改性的钒磷氧化物 (VPO)催化剂用于温和条件下液相催化氧化环己烷 .发现Bi VPO催化剂具有较好的液相催化氧化性能 ;Bi VPO催化氧化环己烷的优化工艺条件是在 10ml乙腈中加入 2mmol的环己烷、 0 0 1g (V :0 0 6 8mmol)的Bi VPO催化剂 ,在 6 0℃下分次滴加 3ml (2 6mmol)H2 O2 ,反应 12h ,环己烷的转化率为 72 % ,环己酮和环己醇的收率分别为 38%和 34% .表明改性后的催化剂可大大提高VPO催化剂液相氧化环己烷的催化性能 .更多还原

【Abstract】 Elements including La, Ce and Bi were used to modify V-P oxide(VPO)catalyst which were used to catalyze cyclohexane oxidation in the liquid phase.Bi-VPO catalyst showed the best performance in liquid-phase oxidation.2 mmol of cyclohexane in 10 ml of acetonitrile could be well converted at 60℃ for 12 h by adding 3 ml (26 mmol) of H 2O 2, and 72% of cyclohexane conversion rate, 38% of cyclohexanone yield, and 34% of cyclohexanol yield were achieved with 0.01 g (V: 0.068 mmol) of Bi-VPO catalyst.Modified VPO catalysts could greatly enhance the catalytic performance in liquid-phase oxidation of cyclohexane.更多还原