1,2-环己二醇合成己二酸的氧化动力学  

Oxidation Kinetics of Synthesis of Adipic Acid from 1,2-Cyclohexanediol

作　　者：倪风超 蒋鑫[2] 沈介发[2] 严生虎[1,2] Ni Fengchao;Jiang Xin;Sheng Jiefa;Yan Shenghu(School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;Institute of Flow Chemistry & Process Engineering, Changzhou University, Changzhou 213164, China)

机构地区：[1]常州大学石油化工学院,江苏常州213164 [2]常州大学流动化学和过程工程研究所,江苏常州213164

出　　处：《化学反应工程与工艺》2017年第2期173-178,共6页Chemical Reaction Engineering and Technology

摘　　要：以H_2O_2为氧化剂,磷酸为助剂,采用初始浓度法研究了钨酸催化过氧化氢氧化1,2-环己二醇合成己二酸的氧化动力学,建立动力学模型,得到了反应动力学方程。实验结果表明,1,2-环己二醇的反应级数为0.98,H_2O_2的反应级数为0.30,反应的活化能为46.92 k J/mol,指前因子为9.48×10~4 L^(0.28)/(mol^(0.28)·min)。通过实验验证氧化动力学方程,计算值和实验值的平均相对误差为0.2%,两者基本吻合。The oxidation kinetics of synthesis of adipic acid from1,2-cyclohexanediol(1,2-Col)was studied using tungstate as catalyst,phosphoric acid as additives,hydrogen peroxide as oxidant.The kinetic model was established and the reaction kinetic equation was obtained.The results showed that the oxidation reaction order was0.98to1,2-cyclohexanediol and0.3to H2O2.The activation energy was46.92kJ/mol and pre-exponential factor of the reaction was about9.48×104L0.28/(mol0.28·min).The oxidation kinetic model was verified,in which the average relative error between the calculated and experimental values was0.2%,which indicated that the calculated values were in good agreement with the experimental results.

关 键 词：1 2-环己二醇 催化氧化 己二酸 动力学 

分 类 号：TQ013.2[化学工程]