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[Chemical Knowledge]：Production method and process flow of benzene sulfonyl chloride

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of Benzenesulfonyl Chloride Manufacturing Method
Benzenesulfonyl chloride is an important organic compound, which is widely used in the field of chemical production raw materials. It is strongly irritating and corrosive and can be used to synthesize many important chemicals, such as dyes, drugs, pesticides, etc. This article will introduce the manufacturing method of benzene sulfonyl chloride, including raw materials, process flow, operation steps, safety and environmental protection measures.

1. raw material

benzene sulfonyl chloride manufacturing raw materials mainly include benzene, sulfur and chlorine. Among them, benzene is a common organic solvent, sulfur is a yellow non-metallic element, and chlorine is a toxic gas.

2. Process
The manufacturing process of
benzenesulfonyl chloride mainly includes the following steps:

1. Mixing and heating benzene and sulfur to generate benzenesulfonic acid;
2. Pour chlorine gas into benzenesulfonic acid to generate benzenesulfonyl chloride;
3. Separate benzenesulfonyl chloride by distillation to obtain a product with high purity.

3. Operation Steps

1. Add a certain amount of benzene and sulfur into a reactor, heat to a certain temperature, and react to generate benzenesulfonic acid;
2. Transfer the benzenesulfonic acid generated by the reaction into another reactor, and pass a certain amount of chlorine gas to react to generate benzenesulfonyl chloride;
3. Separate benzenesulfonyl chloride from the reaction solution by distillation to obtain benzenesulfonyl chloride product with higher purity.

4. safety and environmental protection measures

1. In the manufacturing process, it is necessary to strictly control the reaction temperature and pressure to prevent the reaction from getting out of control;
2. Chlorine is a toxic gas and needs to be operated in a well-ventilated environment;
3. Waste needs to be properly handled to avoid harm to the environment and human body.

5. Precautions

1. During operation, it is necessary to prevent the reaction liquid from splashing to avoid harm to the human body;
2. It is necessary to operate under the guidance of professionals to avoid safety accidents;
3. During storage and use, attention should be paid to sealing and moisture-proof to avoid affecting product quality.

In short, the manufacturing method of benzenesulfonyl chloride requires strict control of the process flow and operation steps, and compliance with safety and environmental protection measures and precautions to ensure product quality and production safety.

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