年产5万吨硫酸法钛白粉(金红石型)生产工艺设计

东华理工大学毕业设计（论文） 摘要

毕 业 设 计

题 目：年产5万吨硫酸法钛白粉（金红石型)生产

英文题目： `

工艺设计

——沉降至水解工段 The Design of producing 50000t TiO2 per year

In Acid solution process —Settlement to the hydrolysis process

姓 名：

专 业： 化学工程与工艺 学 号：

指导老师： 黄

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东华理工大学毕业设计（论文） 摘要

年产5万吨硫酸法钛白粉（金红石型）生产工艺设计 ——沉降至水解工段

摘 要

本设计介绍了钛白粉的性质、用途、发展趋势、及各种钛白粉的生产方法并做相应的比较，最终采用目前国内普遍使用并且技术比较成熟的酸解法。

本设计的目的是完成年产5万吨酸解法钛白粉（金红石型）生产工艺设计，其中包括工艺流程设计、物料衡算、能量衡算、主要设备的选型、生产过程中的三废处理以及废副产品的利用。

关键词：钛白粉；硫酸法；水解；工艺计算

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东华理工大学毕业设计（论文） ABSTRACT

The Design of producing 50000t TiO2 per year in Acid solution

process

——— Settlement to the hydrolysis process

ABSTRACT

This design introduced the titanium dioxide powder nature, the use, the trend of development as well as methods of producing titanium dioxide. according to the comparison of these methods. finally determines to use the Acid solution process which is commonly used and its technology more mature.

The purpose of this design is to complete the design of producing 50000t TiO2 per year in Acid solution process which from Settlement to the hydrolysis process. which includes process design, material balance, equipment selection, the waste treatment in acid solution production , waste utilization of byproducts.

Keywords: titanium dioxide; sulfate; hydrolysis; process calculation

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目 录

第1章 概 述 ....................................................... 1

1.1 钛白粉的性质 ............................................................................................................... 1 1.2 钛白粉的用途 ............................................................................................................... 2 1.3 当前钛白粉生产质量标准......................................................................................... 3 1.4 全球钛白的发展情况 .................................................................................................. 4

1.4.1 国际钛白粉生产发展史 ................................................................................. 4 1.4.2 世界钛资源分布情况 ..................................................................................... 5 1.5 国内钛白粉的发展情况 ............................................................................................. 6

1.5.1 国内钛白粉生产发展史 ................................................................................. 6 1.5.2 我国钛矿的分布情况 ..................................................................................... 6 1.5.3 国内钛白粉行业的发展前景 ....................................................................... 7 1.6 钛白粉生产工艺的比较及选择 ............................................................................... 7 1.7 国内外钛白粉的主要生产厂家 ............................................................................... 8

1.7.1 国外主要生产厂家 .......................................................................................... 8 1.7.2 国内主要生产厂家 .......................................................................................... 9 1.8 设计的目的及内容 .................................................................................................... 10 第2章 酸解法钛白粉生产工艺流程设计及主要工段介绍 .......................................... 11

2.1 反应原理 ...................................................................................................................... 11 2.2 工艺流程方框图 ........................................................................................................... 11 2.3 主要工段介绍[12] ......................................................................................................... 13

2.3.1 酸解工段 ............................................................................................................ 13 2.3.2 浓缩工段 ............................................................................................................ 14 2.3.3 晶种的制备工段 ............................................................................................ 14 2.3.4 水解工段 ............................................................................................................ 15

第3章 酸解法生产钛白粉的工艺计算 ............................................................................... 17

3.1 物料衡算 ...................................................................................................................... 17

3.1.1 原料计算(以生产1吨100 %TiO2计) ..................................................... 17 3.1.3 结晶过程的物料衡算 ..................................................................................... 20 3.1.4 过滤过程物料衡算 .......................................................................................... 21 3.1.5 浓缩过程物料衡算 ........................................................................................ 22 3.1.6 水解过程中的物料衡算 ............................................................................... 22 3.2 能量衡算(以生产1吨100 %TiO2计) ................................................................. 23 第4章 主要设备计算及选型 ................................................................................................. 26

4.1 沉降池选型 .................................................................................................................... 26 4.2 蒸发器选型 .................................................................................................................. 26 4.3 水解罐选型 .................................................................................................................. 26 4.5 主要设备一览表 ......................................................................................................... 26 第5章 污染物治理及废副产品的利用 ............................................................................... 28

5.1 废气的治理 .................................................................................................................. 28 5.2 废水的治理 .................................................................................................................. 28

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5.3 废渣的处理 .................................................................................................................. 29 5.4 噪音及粉尘的处理 .................................................................................................... 29 5.5 废副产品的利用 ........................................................................................................... 30 第6章 车间布置说明 .............................................................................................................. 31 致 谢 .............................................................................................................................................. 32 参考文献 .......................................................................................................................................... 33 附录 ................................................................................................................................................... 34

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