2013•Journal of Hebei Normal UniversityRequires access

Catalytic Synthesis of Cyclohexanone 1,2-propanediol Ketal with H_3PW_(12)O_(40)/ZrO_2-WO_3

Yang Shui-ji

Abstract

The H3PW12O40/ZrO2-WO3 was prepared by impregnation,and characterized by FT-IR and XRD.Cyclohexanone 1,2-propanediol ketal was synthesized from cyclohexanone and 1,2-propanediol by using H3PW12O40/ZrO2-WO3 as the catalyst.The influence factors on the yields of cyclohexanone 1,2-propanediol ketal were investigated.The optimum conditions are that:molar ratio of cyclohexanone and 1,2-propanediol is 1∶1.4,the volume of cyclohexane as the water-carrying agent is 10mL,reaction time is 30minutes,and mass fraction of catalyst to reactants is 0.8%,respectively.The yield of cyclohexanone 1,2-propanediol ketal can reach 88.9% under the optimum conditions.

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Key concepts: Cyclohexanone, Cyclohexane, Catalysis, Propanediol, Molar ratio, Yield (engineering), Chemistry, Mass fraction