由氯代正丁烷生产丁基丙二酸二甲酯的精馏塔设计
关键字：丁基丙二酸二乙酯；分离；精馏
The Distillation Column Design of the Production n-butyl-malonate by the 1-Chlorobutane
abstract:Diethyl n-butyl-malonate conventional industrial production is dominated by sodium eth-oxide and diethyl malonate to the reaction diethyl n-butyl-malonate,.It has low yield, serious pollution. Now we use the phase transfer catalysis to synthesize diethyl n-butyl-malonate method used in industrial production to industrial production. This method has higher yield and less pollution. The design of the main processes for the separation of the distillation process design, separation of diethyl malonate, butyl malonate binary system.Design of distillation towers used valve. Bottom of the column of steam heating by steam to provide sufficient heat. Obtained by calculating the number of theoretical plates, tower efficiency, the actual plate number, feed location. The main tower in the plate design and calculation of process dimensions derived column diameter, the effective tower, sieve number. Checking through the sieve of fluid mechanics, to prove that the indicator data are in line with standards to ensure the smooth progress of distillation process and to improve efficiency as much as possible.
keywords：diethyl n-butyl-malonate,;separate；distillation
目 录
1 绪论 1
1.1概述 1
2 精馏塔的工艺计算 8
2.1精馏塔的物料衡算[13] 8
2.1.1基础数据 8
2.1.2物料衡算 8
2.3精馏塔设备计算 11
2.3.1基础数据 11
2.3.2塔板数的确定[15] 14
2.3.3精馏塔主要尺寸计算[14] 16
2.3.4塔板结构设计 18
2.3.5 塔板布置 20
3 塔板流体力学验算 24
3.1 塔板流体力学验算 24
3.2塔板负荷性能图 27
3.2.1漏液线 27
3.2.2液沫夹带线 28
3.2.3液相负荷下限线 29
精馏段： 29
3.2.4液相上限线 30
3.2.5液泛线 30
3.3塔高的计算 33
4主要设备设计和选型 36
4.1接管的设计 36
4.1.1进料管 36
4.1.2釜液出口管 36
4.1.3塔顶蒸汽管 36
4.1.4加热蒸汽管 37
5 结论 38
参考文献 39
附录 40
谢 辞 42
1 绪 论
1.1概述
1.1.1国内外的研究现状
1.1.2丙二酸二乙酯的性质
丙二酸二乙酯(简称DEM)又称胡萝卜酸乙酯，其分子式为CH2(COOC2H5)2，分子量为160.17，结构式如下：
（1-1）