Synthesis of Cyclohexanone 1,2-Propanediol ketall by modified coal activated carbon as a catalyst

Cyclohexanone 1,2-Propanediol ketal was synthesized by using K2Cr2O7 modified coal acitve carbon as catalyst.The optimum reaction conditions were as follows: the molar ratio of Cyclohexanone to 1,2-Propanediol was 1∶2.0(mol/mol),the quantity of catalyst equaled to 2.9% of feed stocks,the volume of Cyclohexane was 8.0 mL,the reaction time was 4.0 h(based on 0.05 mol Cyclohexanone).The yield of product was 92.7%.The results of tests showed that the catalyst had higher catalytic activity to the reaction.