草酸二甲酯与苯酚酯交换合成碳酸二苯酯  

Synthesis of Diphenyl Carbonate by Transesterification of Dimethyl Oxalate with Phenol

作　　者：郭宏利[1] 王胜平[1] 马新宾[1] 李振花[1] 

机构地区：[1]天津大学化工学院一碳化学与化工国家重点实验室

出　　处：《石油化工》2003年第2期104-107,共4页Petrochemical Technology

基　　金：国家自然科学基金(20276050);高等学校骨干教师资助计划;云南省省院省校项目(00YT03)资助。

摘　　要：选择Lewis酸催化剂、分子筛催化剂、有机钛和锡化合物催化剂、H2SO4、KOH和不同载体上的不同金属氧化物催化剂用于草酸二甲酯(DMO)与苯酚酯交换合成碳酸二苯酯的过程。实验结果表明,Sn改性的TS-1分子筛、TiO2/SiO2对该反应具有较高的催化活性和选择性,前者DMO的转化率和目的产物的选择性分别可以达到50 3%和99 2%;后者分别为66 7%和99 5%。在该酯交换反应中,SiO2与γ-Al2O3和MgO相比,是一种良好的催化剂载体。Ti和Sn原子是有效的酯交换催化活性中心。A variety of catalysts,including Lewis acid,molecular sieve,organic Ti and Sn compounds,H 2SO 4,KOH and metal oxides supported on different carriers were used to catalyze the transesterification of dimethyl oxalate with phenol.Sn-modified TS-1 and TiO 2/SiO 2 showed preferable activity and selectivity.The conversion of dimethyl oxalate and selectivity of products were 50 3% and 99 2% respectively on Sn-modified TS-1,while 66 7% and 99 5% on TiO 2/SiO 2.In this reaction,SiO 2,compared with γ-Al 2O 3 and MgO,was an excellent catalyst carrier.Titanium and tin atoms were active catalytic centers for the transesterification of dimethyl oxalate with phenol.

关 键 词：草酸二甲酯 苯酚 酯交换 合成 碳酸二苯酯 

分 类 号：TQ245[化学工程—有机化工]