年产7200邻苯二甲酸二丁酯 毕业设计

摘要/ Abstract

摘 要

邻苯二甲酸二丁酯（DBP）是广泛用于塑料加工业中的一种良好的增塑剂。DBP生产工艺主要有三种：间歇法，半连续法和连续法。本设计采用半连续法生产工艺，用邻苯二甲酸酐和正丁醇进行酯化反应，以硫酸作为催化剂，生产工艺包括酯化、中和水洗、脱醇、脱色过滤、废水处理等五个主要过程。本设计说明书主要介绍了生产工艺的选择与确定，物料和能量衡算，主体设备的选型与计算、厂址的选择及厂房布置、以及环境保护与劳动安全。

关键词：邻苯二甲酸二丁酯（DBP）；苯酐；酯化反应；工艺设计

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摘要/ Abstract

Abstract

Dibutyl phthalate (DBP) is widely used in plastics processing industry as a good

plasticizer. There are three main processes production of DBP: intermittent, semi-continuous process and continuous process. This design uses the semi-continuous process, with ophthalmic anhydride and n-butanes for etherification to sulfuric acid as a catalyst. Its production processes including five main processes: etherification, neutralization and washed, alcohol, filtering and bleaching, and wastewater treatment. This design specification mainly introduces the selection and determination of production technology, the balance of material and energy,the calculation and selection of main equipment,the site selection and layout of plant,and environmental protection and labor safety.

Key Words: Dibutyl Phthalate(DBP); Phthalic Anhydride;Esterification Reaction; Process Design

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目录

目 录

第一章 概述 .............................................................................................................................. 1

1.1 邻苯二甲酸二丁酯（DBP）的结构与性能 ............................................................ 1 1.2 增塑剂的发展趋势 .................................................................................................... 1 1.3 产品需求 .................................................................................................................... 2

1.3.1 PVC行业基本情况 ............................................................................................ 2 1.3.2 DBP国内外需求情况 ........................................................................................ 2

第二章 工艺流程的选择 ........................................................................................................ 4

2.1 生产工艺的确定 ........................................................................................................ 4

2.1.1 DBP的合成原理 ................................................................................................ 4 2.2 催化剂的选择 ............................................................................................................ 4

2.2.1 对甲苯磺酸催化合成邻苯二甲酸二丁酯 ........................................................ 5 2.2.2 树脂催化合成邻苯二甲酸二丁酯 .................................................................... 5 2.2.3 无机盐催化合成邻苯二甲酸二丁酯 ................................................................ 5 2.2.4 杂多酸催化合成邻苯二甲酸二丁酯 ................................................................ 6 2.2.5 相转移催化合成邻苯二甲酸二丁酯 ................................................................ 6 2.2.6 催化剂的确定 .................................................................................................... 6 2.3 工艺流程的确定 .......................................................................................................... 7

2.3.1 生产工艺的对比与选择 .................................................................................... 7 2.3.2 工艺流程的确定 ................................................................................................ 8 2.3.3 工艺流程介绍 .................................................................................................... 9

第三章 原料与产品指标 ...................................................................................................... 11

3.1 原材料的供应与指标 .............................................................................................. 11

3.1.1 邻苯二甲酸酐 .................................................................................................. 11 3.1.2 正丁醇 .............................................................................................................. 11 3.1.3 辅助材料的供应 .............................................................................................. 11 3.2 产品标准及技术参数 .............................................................................................. 11 第四章 物料衡算 .................................................................................................................. 13

4.1 反应釜（R0201） ..................................................................................................... 14 4.2 调配罐（V0202） ..................................................................................................... 16 4.3 粗酯罐（V0203） ..................................................................................................... 16 4.4 水洗釜（V0204） ..................................................................................................... 16 4.5 蒸馏塔（R0202） ..................................................................................................... 17 4.6 过滤器（X0201） ..................................................................................................... 18 4.7 分水罐（V0205） ..................................................................................................... 19 4.8 全装置物料衡算 ........................................................................................................ 20

4.8.1 全装置物料平衡计算 ...................................................................................... 20 4.8.2 全装置物 …… 此处隐藏：10957字，全部文档内容请下载后查看。喜欢就下载吧 ……