环烷酸钴催化空气氧化对二乙苯合成对二乙酰苯  

COBALT NAPHTHENATECATALYZED OXIDATION OF p-DIETHYLBENZENE WITH AIR TO PREPARE p-DIACETYLBENZENE

作　　者：邢跃军[1] 李传峰[1] 杨柳[1] 刘宗健[1] Xing Yuejun;Li Chuanfeng;Yang Liu;Liu Zongjian(Nanjing Research Institute of SINOPEC Yangzi Petrochemical Company Limited, Nanjing 210048, Jiangsu, China)

机构地区：[1]中国石化扬子石油化工有限公司南京研究院,江苏南京210048

出　　处：《精细石油化工》2020年第3期24-27,共4页Speciality Petrochemicals

摘　　要：以对二乙苯为原料,以环烷酸钴为催化剂、空气为氧化剂合成了对二乙酰苯(PDAB)。实验考察了反应温度、催化剂用量和反应时间对氧化反应的影响,结果表明:适宜的工艺条件为反应温度110℃、n(Co^2+)/n(PDEB)=0.0025,反应时间4 h。在此条件下,对二乙苯转化率为98.21%,对二乙酰苯的选择性为84.08%、收率为82.57%。Liquid oxidation of p-diethylbenzene(PDEB)to prepare p-diacetylbenzene(PDAB)was studied with cobalt naphthenate as the catalyst and air as the oxidant.Effects of reaction temperature,catalyst dosage and reaction time were investigated and the results showed that 110℃,n(CO^2+)/n(PDEB)=0.0025 and 4h were the optimal reaction conditions,under which the conversion rate of PDEB was 98.21%and PDAB was obtained in 84.08%selectivity and 82.57%yield.

关 键 词：对二乙苯 对二乙酰苯 对乙基苯乙酮 环烷酸钴 

分 类 号：TQ244[化学工程—有机化工]