CO偶联制草酸二乙酯分离工艺的开发  

Development of Separation Process in the Preparation of Diethyl Oxalate by Vapor Phase Catalytic Coupling Reaction of CO

作　　者：陈镇[1] 刘家祺[1] 李俊台[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《化学工程》2001年第3期49-51,共3页Chemical Engineering(China)

摘　　要：CO气相催化偶联法生产草酸二乙酯是目前正在开发中的一碳化工新工艺。在中试及工业装置设计中开发分离工艺是新工艺的重要组成部分。该文在实验室连续精馏塔上研究工艺条件对草酸二乙酯精制过程的影响 ,为模型参数的修正提供实验数据。通过模拟计算 ,提出了适宜的草酸二乙酯精制分离工艺流程。最佳工艺条件 :闪蒸罐操作温度 90℃ ,压力 10 1.3kPa ;精馏塔常压操作 ,理论板数 14块 ,回流比 11,第7板侧线采出 ;减压蒸馏釜操作压力 3.2kPa。The preparation of diethyl oxalate by vapor plase catalytic coupling reaction of CO is a new technology under development currently.The separation method of this process is required in the pilot plant and commercial plant design.The effects of technological conditions on the purification of diethyl oxalate are studied on the laboratory continuous distillation column,which provides experimental data for correction of model parameter.Finally,an optimum separation flowsheet and technological conditions are developed based on the simulation results.

关 键 词：分离工艺 开发 草酸二乙酯 副产物 回收 一氧化碳 偶联法 

分 类 号：TQ028[化学工程]