正丁醛氧化制备正丁酸工艺过程研究

Study on Preparation of Butyric Acid by Oxidation of Butyraldehyde

在反应温度 50～ 60℃ ,氧醛摩尔比 0 .75～ 0 .875,催化剂与正丁醛的质量比 0 .1 %～ 0 .2 % ,反应时间为 3 h左右的优化的工艺条件下进行了正丁醛氧化制正丁酸的研究。结果表明 :在优化的工艺条件下正丁醛的转化率在 99.5%以上 ;正丁酸的选择性超过了 95.0 %。

Preparation of butyric acid by oxidation of butyraldehyde was studied. Optimal operating conditions were experimentally given as follows: temperature: 50~60℃, mole ratio of oxygen to butyraldehyde: 0.750~0.875, mass ratio of catalyst to butyraldehyde: 0.1%~0.2% and the reaction time about 3 hours. The results showed experimently that the conversion of butyraldehyde was above 99.5% and selectivity of butyric acid was over 95.0% under the above conditions.