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测定醋酸叔丁酯-醋酸的汽液平衡数据,用最小方差法关联拟合;采用共沸蒸馏法从醋酸叔丁酯和醋酸混合溶液中提取醋酸叔丁酯,研究共沸蒸馏过程中,温度及回流比对分离效果的影响;由甲醇-水标准体系确定共沸蒸馏塔的等板高度、塔高及塔板效率;研究结果为进一步放大实验提供依据。
The vapor-liquid equilibrium data of t-butyl acetate-acetic acid were determined and the fitting was fitted by the least square method. The azeotropic distillation method was used to extract t-butyl acetate from t-butyl acetate and acetic acid mixed solution. And the effect of reflux ratio on the separation efficiency. The plate height, tower height and tray efficiency of the azeotropic distillation column were determined by the methanol-water standard system. The results provide the basis for further amplification experiment.