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[Chemical Knowledge]：The production and manufacturing method and process flow of methyl hydrogen dichlorosilane.

Read： 333 Time：19months ago Source：Transform the World with Simplicity

Monomethylhydrodichlorosilane (MeSiHCl2) is an important organic silicon compound, which is widely used in chemical production. This article will introduce a common manufacturing method of methyl hydrogen dichlorosilane.

1. raw material preparation

1. methyl chlorosilane (MeSiCl3): as the main raw material, methyl chlorosilane can be prepared by the reaction of metal silicon and methyl chloride.
2. Hydrogen (H2): Used as a reducing agent for reducing chlorine atoms in methylchlorosilanes.
3. Catalyst: Noble metals such as platinum and palladium are usually used as catalysts to improve the reaction rate and selectivity.

2. reaction process

1. methyl chlorosilane and hydrogen mixed in a certain proportion, and the introduction of catalyst.
2. at a certain temperature and pressure, hydrogen and methyl chlorosilane reduction reaction, generate methyl hydrogen dichlorosilane.

reaction equation: MeSiCl3 H2 → MeSiHCl2 HCl

3. By distillation, condensation and other methods, the reaction of the generated methyl hydrogen dichlorosilane is separated from the reaction system, and the removal of unreacted raw materials and by-products.

3. post-treatment

1. purify the separated methyl hydrogen dichlorosilane to remove impurities.
2. Store the purified monomethylhydrodichlorosilane for later use.

4. precautions

1. In the entire manufacturing process, it is necessary to strictly control the reaction temperature, pressure and other parameters to ensure the smooth progress of the reaction and the quality of the product.
2. It is necessary to regularly test the activity of the catalyst to ensure its catalytic effect.
3. During the operation, attention should be paid to safety to avoid accidents such as hydrogen leakage.

In short, the manufacturing method of monomethylhydrodichlorosilane involves multiple links, and the operating conditions and parameters of each link need to be strictly controlled to ensure product quality and output. At the same time, it is necessary to pay attention to safety during operation to avoid accidents.

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