Conversion of propylene glycol-acetone mixture into 2,2,4-trimethyl-1,3-dioxolane over Dowex DR-2030 and ZrO<sub>2</sub>-SiO<sub>2</sub> acid catalysts
Keywords:
propylene glycol, acetone, ketal, sulforesin Dowex DR-2030, acidic ZrO2-SiO2 catalystAbstract
The conversion of propylene glycol-acetone mixtures into cyclic ketal over sulforesin Dowex DR-2030 and acidic ZrO2-SiO2 catalysts under steady conditions at 40–100°C has been studied. It has been shown that 2,2,4-trymethyl-1,3-dioxolane can be obtained with 99–94°% yield at 40–50°C. Conversion of propylene glycol increases from 65 to 75% when providing of the ketalization process with water removing.References
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