以环己酮与1,2-丙二醇为原料,稀土固体超强酸SO42-/TiO2/Ce(IV)为催化剂,合成了环己酮1,2-丙二醇缩酮,考察了影响反应的因素。结果表明,在n(酮)n∶(醇)=1 1∶.5、催化剂用量占反应物总质量的1.7%、带水剂环己烷用量占反应物总质量的30%、反应时间1h的优化条件下,环己酮1,2-丙二醇缩酮收率可达84.28%。 Cyclohexanone and 1,2-propanediol as raw materials, rare earth solid superacid SO42- / TiO2 / Ce (IV) as catalyst, synthesized cyclohexanone 1,2-propanediol ketal, investigated the factors that affect the reaction. The results showed that the amount of catalyst accounted for 1.7% of the total mass of the reactants and the amount of cyclohexane used in the reactor was 30% of the total mass of the reactants at a molar ratio n: (alcohol) of 1: 1.5. The reaction time was 1 h Under the optimized conditions, the yield of cyclohexanone 1,2-propanediol ketal can reach 84.28%.