羰基合成醋酐反应条件的实验研究

The Experimental Study of Reaction Conditions for Carbonyl Synthesis of Acetic Anhydride

对羰基液相合成醋酐反应过程中受温度、压力、停留时间等反应条件的影响进行实验研究，通过对实验数据的分析，确定优化条件为：反应时间15～20 min，反应压力（10～15）＆#215;105 Pa，反应温度290～300 K，催化剂浓度40～45 g/L，搅拌速率10～12 n/min，为工艺的工业化放大提供了依据。

The carbonyl liquid phase synthetic acetic anhydride reaction conditions were studied.Opti-mize conditions：reaction time is 15 to 20 Min,and reaction pressure of 10 to 15 atm.Reaction tempera-ture is 290 to 300 K,the catalyst concentration is 40 to 45 G/L,agitation rate is 10 to 12 N/min.The results can be provided industrialization design basis for acetic anhydride process.