活性白土固载SO2-4Fe2O3催化合成偏苯三甲酸三(2乙基)己酯

摘要

采用活性白土负载SO2-4Fe2O3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2.5 h,产品收率达91.6%。%An activated bentonite supported SO2-4Fe2O3 catalyst was used to synthesize trioctyl trimellitate. Some affecting factors on reaction were discussed. Optimum technological conditions have been found.