用对甲苯磺酸催化合成丁醛乙二醇缩醛,考察了催化剂的用量、反应时间、醛醇物质的量之比及带水剂等因素对合成反应的影响。实验结果表明:在丁醛和乙二醇的摩尔比为1∶1.5、催化剂用量为反应物料总质量的2.4%、环己烷为带水剂、反应时间40 min的优化条件下,丁醛乙二醇缩醛的收率可达91.91%。 The synthesis of butyraldehyde ethylene glycol acetal with p-toluenesulfonic acid was investigated. The effects of the amount of catalyst, the reaction time, the amount of aldol and the amount of aldehyde alcohol on the synthesis reaction were investigated. The experimental results show that under the optimal conditions of the molar ratio of butanal to ethylene glycol is 1: 1.5, the amount of catalyst is 2.4% of the total mass of the reaction mass, cyclohexane is the water-carrying agent and the reaction time is 40 min, Acetal yield of up to 91.91%.