文章介绍了5万吨/年酯化法醋酸乙酯酯化装置的工艺和设备改造情况。改造后酯化塔的各点温度较易控制,出料品质稳定,粗酯中的酸度从原来的0.6%下降到60×10-6,酯化釜单釜出料量也从原来的2000L/h提高到4500L/h,装置产量提高到10万吨以上/年。 The paper introduced the process and equipment reformation of the 50,000t / y esterification ethyl acetate esterification unit. After the transformation of the esterification tower temperature is easy to control the point, the quality of the material is stable, the acidity of the crude ester from the original 0.6% down to 60 × 10-6, Esterification kettle single kettle discharge volume from the original 2000L / h increased to 4500L / h, device production increased to more than 100,000 tons / year.