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[Chemical Knowledge]：Manufacturing method and process flow of tin tetrachloride

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The manufacturing method
of tin tetrachloride
1. Introduction

Tin tetrachloride is an important chemical production raw material, widely used in electronics, metallurgy, ceramics, glass and other fields. With the continuous development of science and technology, higher requirements are put forward for the manufacturing method of tin tetrachloride. This article will introduce the manufacturing method of tin tetrachloride in detail, including raw material preparation, reaction process, post-treatment and so on.

2. Raw Materials Preparation

The main raw materials for the manufacture of tin tetrachloride are metal tin and chlorine. In order to ensure the smooth progress of the manufacturing process, it is necessary to select high purity raw materials. At the same time, it is also necessary to prepare the reaction equipment, cooling system, exhaust gas treatment device and other auxiliary equipment.

3. reaction process

1. chlorination reaction

add metal tin into the reaction kettle and pass chlorine gas for chlorination reaction. It is necessary to control the flow rate of chlorine and the reaction temperature during the reaction to ensure the smooth progress of the reaction. The chlorination reaction produces tin tetrachloride and a small amount of tin dichloride.

2. Distillation Separation

The mixture obtained by the chlorination reaction is subjected to distillation separation to separate tin tetrachloride and tin dichloride. The temperature and pressure need to be controlled during the distillation process to ensure the purity and yield of the product.

4. post-treatment

1. product refining

for distillation separation of tin tetrachloride refined to remove impurities and moisture. As the purification method, distillation, extraction, crystallization and the like can be used.

2. Tail gas treatment

treat the tail gas produced in the chlorination reaction and distillation separation process to prevent environmental pollution. As the tail gas treatment method, absorption, combustion and the like can be used.

5. precautions

1. The reaction temperature and pressure need to be strictly controlled during the manufacturing process to prevent safety accidents.

2. The quality and purity of raw materials have a great influence on the quality and yield of the product, so it is necessary to choose high-quality raw materials.

3. Tail gas treatment is an important link to ensure environmental protection, and it is necessary to select appropriate treatment methods and carry out effective monitoring.

6. conclusion The manufacturing method of

tin tetrachloride includes raw material preparation, chlorination reaction, distillation separation and post-treatment. In order to obtain high-quality products, it is necessary to strictly control the process parameters and operating processes of each link. At the same time, environmental protection and safety are also issues that need to be focused on in the manufacturing process. Through the manufacturing method introduced in this paper, tin tetrachloride products with high purity and stable quality can be produced, which provides strong support for the development of related fields.

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