树脂负载型催化剂催化环十二碳三烯环氧化的反应研究

摘要

以过氧化氢（ H2 O2）为氧化剂，以阴离子交换树脂为载体负载的过氧磷钨酸为催化剂，催化环十二碳三烯选择环氧化生成单环氧化物．采用XRD和SEM等手段对催化剂进行了表征．研究结果表明，以阴离子树脂载体负载的磷钨杂多酸为催化剂在催化环十二碳三烯选择环氧化反应中展现出较好的催化活性．在以过氧化氢为氧化剂，阴离子树脂D261负载过氧磷钨酸为催化剂时，60℃反应4 h，环十二碳三烯的转化率为72．6％，单环氧化物的选择性为74．6％．%Using hydrogen peroxide ( H2 O2 ) as the oxidant and resin supported heteropolyacid as the catalyst,cyclododecatriene can be epoxidized to mono⁃epoxide. The structure of the catalyst is characterized by XRD and SEM. The results show that phosphotungstic acid peroxide catalysts have good catalytic activity on the selective epoxidation of cyclododecatriene. By using hydrogen peroxide as the oxidant and D261⁃phosphotungstic peroxo acid as the catalyst,the conversion of cyclododecatriene can reach 72. 6% with the mono⁃epoxide selectivity of 74 . 6% at 60 ℃.