Intermittent Extractive Distillation of Ethanol-Water System
The method of intermittent extraction distillation with salt addition was used to prepare anhydrous ethanol,and the effects of reflux ratio,anhydrous calcium chloride mass,and raw material ethanol mass fraction on the separation efficiency of ethanol aqueous solution were investigated using glycerol as the extractant.The results indicate that adding a small amount of anhydrous calcium chloride will reduce the mass fraction of ethanol in the product.
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