| 摘要 |
PURPOSE: Provided is a method for removing ethylacetate from processing flow included vinyl acetate, acetic acid, water or ethylacetate impurities. CONSTITUTION: A method for removing ehtylacetate from processing flow included vinyl acetate, acetic acid, water or ethylacetate impurities comprises the steps of: introducing processing flow to distillation column: obtaining vinyl acetate fraction from the top of distillation column: obtaining acetic acid fraction in the bottom of distillation column: recovering the side stream of vapor phase containing ethylacetate impurities with higher concentration than 10wt% from the middle part of distillation column.
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