活性白土固载SO_4^(2-)-Fe_2O_3催化合成偏苯三甲酸三(2-乙基)己酯

CATALYTIC SYNTHESIS OF TRIOCTYL TRIMELLITATE BY ACTIVATED BENTONITE SUPPORTED SO_4^(2-)-Fe_2O_3

采用活性白土负载 SO2 -4 Fe2 O3 催化合成了偏苯三甲酸三 (2乙基 )己酯 ,探讨了催化剂用量 ,原料配比 ,反应时间等因素与酯化率的关系 ,结果表明 :酐醇摩尔比为 1∶ 4 .0 ,催化剂用量为 5.0 % (对偏酐的质量分数 ) ,回流反应 2 .5h,产品收率达 91 .6%

An activated bentonite supported SO 2- 4Fe 2O 3 catalyst was used to synthesize trioctyl trimellitate. Some affecting factors on reaction were discussed. Optimum technological conditions have been found.