Method for purifying 4,5-dimethyl-2-oxo-1,3-dioxole

The present invention provides a 4,5-dimethyl-2-oxo-1,3-dioxol purification process, the method comprising the main steps will require the purified 4,5 dimethyl-2-oxo-1,3-dioxol crude product was placed in a distillation apparatus; to the distillation apparatus into the steam, heating 4,5-dimethyl-2-oxo 1,3-dioxole together with steam in a gaseous manner from said distillation apparatus was distilled off; then condensing said distilled 4,5-dimethyl-2-oxo- 1, 3- dioxole and water vapor, isolated purified products. This method is good purification effect, high yield, simple operation, low cost, suitable for industrial production.