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Source:Transform the World with Simplicity
The manufacturing method
of high hydrogen-containing silicone oil
1. Introduction
With the continuous progress of science and technology, high hydrogen-containing silicone oil is more and more widely used in the field of chemical production raw materials, so it is of great significance to study the manufacturing method of high hydrogen-containing silicone oil. This paper will introduce the manufacturing method of high hydrogen silicone oil in detail, including raw material preparation, chemical reaction process, post-treatment and so on.
2. raw material preparation
1. methyl chlorosilane: methyl chlorosilane is the main raw material of high hydrogen silicone oil, its molecular structure contains silicon, hydrogen, chlorine and other elements.
2. Sodium hydroxide: Sodium hydroxide is used as a catalyst to promote the hydrolysis of methylchlorosilanes.
3. Methanol: Methanol is used as a solvent to dilute methyl chlorosilane and improve the uniformity of the reaction.
3. chemical reaction process
The manufacturing process of high hydrogen-containing silicone oil mainly includes two steps: hydrolysis reaction and condensation reaction. The specific chemical reaction equation is as follows:
1. hydrolysis reaction: methyl chlorosilane under the catalysis of sodium hydroxide, hydrolysis reaction with water generates methyl silicon alcohol and hydrogen chloride.
2. condensation reaction: methyl silanol under acidic conditions, condensation reaction to generate high hydrogen silicone oil.
4. manufacturing process
1. methyl chlorosilane, sodium hydroxide and methanol according to a certain proportion into the reaction kettle, stirring evenly.
2. Heat the reaction kettle to a certain temperature and keep it for a certain time to fully hydrolyze the methyl chlorosilane.
3. Add an acidic catalyst to the reaction kettle to adjust the pH value to promote the condensation reaction.
4. Continue to heat the reaction kettle, maintain a certain temperature and time, so that the high hydrogen silicone oil is fully generated.
5. After the reaction, the reaction solution is subjected to post-treatment, including cooling, separation, purification and other steps, to obtain a high-purity high-hydrogen-containing silicone oil product.
5. Precautions
1. Strictly control the proportion and addition sequence of each raw material to ensure the smooth progress of the reaction.
2. The temperature and pH value should be kept stable during the reaction to avoid side reactions and product quality problems.
3. The purity and yield of the product should be ensured in the post-treatment process to improve the production efficiency.
6. conclusion The manufacturing method of
high hydrogen-containing silicone oil involves multiple chemical reaction processes and operation links, so it is necessary to strictly control the process parameters and operation points of each link to ensure the quality and yield of the product. At the same time, strengthening the monitoring and data analysis of the production process will help optimize the production process, improve production efficiency and reduce costs. With the continuous progress of science and technology and the increasing application demand, the manufacturing method of high hydrogen silicone oil will continue to be improved and perfected, and make greater contributions to the development of chemical production raw materials.