The separation of ethyl acetate-acetone mixtures from waste liquid in superfine ammonium perchlorate preparation was simulated. The effect of continuous distillation process parameters, including the stage numbers of distillation column, the number of feed stage, reflux ratio, and the amount of top products on ethyl acetate-acetone separation was investigated by using RadFrac module of Aspen Plus software. The results show that when the flow rate of ethyl acetate-acetone mixed solvent is 3 kg/h, the optimum operation parameters are as follows: the stage numbers for distillation column is 40; the feed stage is No. 16; reflux ratio (volume ratio) is 5 and the flow of top products is 0. 28 kg/h. Under the optimized parameters, the mass fraction of ethyl acetate at the bottom is enhanced to 99.67％, and the yield can achieve 99.40％; the mass fraction of acetone at the top is enhanced to 94.25％, and the yield can achieve 96.66％. The result of simulation provides fundamental guide for the experimental study and industrialization design.%对制备超细高氯酸铵产生的废液即乙酸乙酯-丙酮混合液的分离过程进行了模拟研究.采用Aspen Plus化工模拟软件中的RadFrac模块进行连续精馏模拟,分别考察了塔板数、进料位置、回流比及塔顶出料量对分离效果的影响.结果表明:对于处理流量3 kg/h乙酸乙酯-丙酮的混合液,精馏塔在塔板数40,进料位置第16块塔板,回流比(体积比)5,塔顶出料量0.28 kg/h的优化条件下,可以将塔釜乙酸乙酯质量分数提高到99.67%,收率为99.40%.同时塔顶丙酮的质量分数提高到94.25%,收率为96.66%.模拟结果对实验研究及工业化具有一定的指导意义.
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