丙烯与醋酸直接催化合成醋酸异丙酯  

PREPARATION OF IPAC FROM PROPYLENE AND ACETIC ACID

作　　者：章哲彦[1] 王冬杰[1] 任元龙 邵颖[1] 

机构地区：[1]宁波师范学院化学系,315020

出　　处：《精细石油化工》1996年第6期44-46,共3页Speciality Petrochemicals

摘　　要：丙烯与醋酸在 NSE 0 1催化剂上直接加合成醋酸异丙酯。研究了丙烯与醋酸的配比 ,反应温度 ,接触时间等反应条件。较佳条件是 :反应温度 4 0 3 ,丙烯与醋酸的的流速分别为 1 2 L/h和 7m L/h,催化剂用量 1 0m L,丙烯与醋酸摩尔比为 3～ 4∶ 1。在较佳条件下醋酸异丙酯时空产率达 30 0～ 4 0 0 g/( h· L)。催化剂连续运行 50 0 h活性未见下降。IPAC was prepared by the catalytic addition of propylene and acetic acid in the presence of NSE1 catalyst. The conditions for catalytic addition such as mole ratio of propylene and acetic acid, reaction temperature and contact time etc were studied. A suitable condition was as follows, the reaction temperature was chosen as 407 . The rates of flow of propylene and acetic acid were selected to 12 L/h and 7mL/h respectively for NSE01 catalyst at 10 mL. The mixture ratio of the reacting gas was propylene: acetic acid=3～4∶1 (molar ratio). Spacetime yieds were 300～400 g/(h·L) under optimal conditions. The catalyst activity did not decrease ouder continuous operation 500 hours.

关 键 词：醋酸异丙酯 丙烯 醋酸 催化 合成 

分 类 号：TQ225.241[化学工程—有机化工]