NO_2催化氧化合成己二酸的研究  

Synthesis of adipic acid by catalytic oxidation of NO_2

作　　者：庄玉伟[1] 刘传艺[1] 郭辉[1] 张国宝[1] 曹健[1] 

机构地区：[1]河南省科学院高新技术研究中心,河南郑州450002

出　　处：《化学工程》2017年第11期70-72,78,共4页Chemical Engineering(China)

基　　金：河南省科技攻关计划项目(142102210088)

摘　　要：以二氧化氮为氧化剂,自制吸收塔为反应发生器,通过催化氧化环己醇合成了己二酸。用红外光谱、核磁共振对合成产物的结构进行表征,由结果可知合成产物为己二酸;采用单因素法考察了反应温度、反应时间、二氧化氮气体流速等因素对己二酸收率的影响,优化了合成反应条件。最佳实验条件为:二氧化氮气体流速0.3 L/min,反应温度50—60℃,反应时间6 h,此条件下己二酸的收率可达87.4%,环己醇对二氧化氮的平均吸收率为98.9%。另外,本方法还为二氧化氮的回收利用提供了一种新的途径。Adipic acid was synthesized by catalytic oxidation using NO： as oxidant and homemade absorption tower for reaction to the generator. The product was characterized by FTIR. The results show that the synthetic product is adipic acid. The effects of reaction temperature, reaction time and the velocity of NO2 etc. factors on the yield of adipic acid were studied by single-factor method for optimizing the synthesis conditions. The optimal experimental conditions are the velocity of NO2 0.3 L/rain, the reaction temperature 50-60 ℃ , the reaction time 6 h. Under this condition, the yield of adipic acid can reach 87.4 % , and the absorption of cyclohexanol to NO2 is 98.9 % on average. In addition, this experimental method provides a new way for the recovery and utilization of NO2.

关 键 词：己二酸 环己醇 氧化 NO2 

分 类 号：TQ225.146[化学工程—有机化工]