异丁醛氧化制异丁酸的工艺研究  

Study in Process for Synthesizing Isobutyric Acid from Isobutyraldehyde by Oxidation

作　　者：刁香[1] 周建平[2] 刘宝坤[2] 

机构地区：[1]淄博职业学院化工系,淄博255020 [2]齐鲁石化公司研究院,淄博255400

出　　处：《精细石油化工进展》2004年第11期17-19,共3页Advances in Fine Petrochemicals

摘　　要：采用自制催化剂,对异丁醛液相氧化制异丁酸的工艺进行考察。结果表明,在反应温度20-50℃、氧醛摩尔比1.2:1、催化剂用量占异丁醛总质量的0.01％-0.05％、反应时间3-4 h条件下,异丁醛转化率大于99.5％,异丁酸选择性在90％以上,分离精制后异丁酸产品纯度高于99.3％。The process for synthesizing isobutyric acid from isobutyraldehyde was examined using self - made catalyst. The result showed the conversions of isobutyraldehyde and the selectivity of isobutyric acid were 99.5% and 90% respectively,and the purity of isobutyric acid after refining was more than 99.3% under the following conditions : the reaction temperature 20-50 ℃, the molar ratio of oxygen to isobutyraldehyde 1.2:1, the amount of catalyst used 0.01%-0.05%(based on isobutyraldehyde amount used) and reaction time 3-4 hours.

关 键 词：异丁酸 异丁醛 产品纯度 液相氧化 催化剂用量 摩尔比 精制 总质量 反应温度 反应时间 

分 类 号：TQ225[化学工程—有机化工]