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[Chemical Knowledge]：Production and manufacturing method and process flow of chlorinated benzene

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The manufacturing method
of chlorinated benzene
1. Introduction

Chlorinated benzene is an important chemical raw material, widely used in medicine, pesticides, dyes, spices and other fields. Therefore, it is of great significance to study the manufacturing method of chlorinated benzene for improving production efficiency, reducing costs and improving product quality. This article will introduce the manufacturing method of chlorinated benzene, including raw material preparation, reaction process, post-treatment and so on.

2. Raw Material Preparation

The manufacture of chlorinated benzene requires benzene and chlorine as raw materials. In order to ensure the smooth progress of the reaction, the raw materials need to be pretreated. First of all, benzene needs to be purified by distillation to ensure its purity meets the requirements. Secondly, chlorine gas needs to be dried and purified to remove moisture and impurities.

3. reaction process

chlorinated benzene is manufactured by chlorination method, that is, benzene and chlorine gas are reacted under the action of a catalyst. Commonly used catalysts include iron filings, aluminum trichloride, etc. In order to ensure the smooth progress of the reaction, it is necessary to control the reaction temperature, pressure and chlorine flow rate. At the same time, it is necessary to monitor the reaction products in real time and adjust the process parameters in time to ensure product quality and yield.

4. Post-Treatment
After the end of the
reaction, the product needs to be post-treated. First, the product needs to be cooled and separated to obtain crude chlorobenzene. Secondly, the crude chlorinated benzene needs to be refined to remove impurities and improve product quality. Commonly used refining methods include distillation, washing, crystallization, etc. Finally, the refined chlorinated benzene needs to be packaged and stored to ensure its quality and stability.
Precautions for
5.

In the manufacturing process of chlorinated benzene, the following matters need to be paid attention to:

1. Strictly control the reaction temperature and pressure to avoid side reactions and safety accidents during the reaction.

2. Strict quality inspection and control of raw materials and products to ensure product quality and yield.

3. Strengthen equipment maintenance and maintenance to ensure the normal operation and service life of the equipment.

4. Strengthen the production site management to ensure the smooth progress of the production process and the health and safety of employees.

6. conclusion The manufacturing method of

chlorinated benzene includes raw material preparation, reaction process and post-treatment. In the manufacturing process, attention should be paid to the control of reaction conditions, quality inspection and control, equipment maintenance and maintenance, etc., to ensure product quality and production safety. Through the research and improvement of the manufacturing method of chlorinated benzene, the production efficiency can be further improved, the cost can be reduced, the product quality can be improved, and the development of the chemical production field can be contributed.

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