柠康酸酐的最佳合成工艺研究  

Study on the Best Synthetic Technique of Citraconic Anhydride

作　　者：肖英[1] 陈春玉[1] 黄超明[1] 李毅[1] 谢辉辉[1] 

机构地区：[1]西南化工研究设计院有限公司工业排放气综合利用国家重点实验室,四川成都610225

出　　处：《广州化工》2015年第17期89-91,共3页GuangZhou Chemical Industry

摘　　要：以衣康酸为原料合成了柠康酸酐。对合成过程中的各种影响因素进行了详细的分析,对脱水剂类型及用量、催化剂类型及用量等进行了正交试验。正交试验结果显示:最佳配方及工艺条件为催化剂为N,N-二甲基甲酰胺(DMF),用量为衣康酸的0.47倍(w/w),脱水剂为邻二氯苯,用量为衣康酸的3.8倍(w/w),气相收率为95.56%。对合成产物进行了红外光谱和核磁氢谱分析,分析结果显示产品为目标产物。Citraconic anhydride （ CTA） was synthesized using itaconic acid. The effects of different factors on the synthesis process, dehydrating agent type and dosage, catalyst dosage and type, etc. , were analyzed, the orthogonal test was adopted. The results of orthogonal test showed that the best formulation and process conditions were as follows： the catalyst was N,N-dimethylformamide（ DMF） , the amount was 0. 47 times of the itaconic acid （ w/w） , dehydration agent was o-dichlorobenzene, 3. 8 times dosage of itaconic acid （ w/w） , the yield was 95. 56%. The synthetic products were analyzed by IR and 1 H NMR, analysis results showed that the product was the target product.

关 键 词：柠康酸酐 橡胶助剂 合成 最佳工艺 

分 类 号：TQ225.23[化学工程—有机化工]