Sản phẩm phenoxone

Plastic rubber

Current Location： Home > News > Chemical Knowledge > L-75 manufacturing methods and processes.

[Chemical Knowledge]：L-75 manufacturing methods and processes.

Read： 599 Time：18months ago Source：Transform the World with Simplicity

L-75 is an important raw material for chemical production, widely used in medicine, pesticides, dyes and other fields. This article will introduce the manufacturing method of L-75, including raw material preparation, reaction steps, post-treatment and so on.

1. Raw Material Preparation

manufacturing L-75 need to prepare the following raw materials: phenol, acetone, sodium hydroxide, hydrochloric acid, etc. Among them, phenol and acetone are the main raw materials, and sodium hydroxide and hydrochloric acid are used to adjust the pH value of the reaction system.

2. Reaction Step

1. Condensation Reaction of Phenol and Acetone

Phenol and acetone are added into a reaction kettle according to a certain molar ratio, heated to a certain temperature, and a catalyst is added to carry out a condensation reaction. The reaction product was bisphenol A.

2. reaction of bisphenol A and sodium hydroxide

bisphenol A and sodium hydroxide in accordance with a certain molar ratio into the reaction kettle, heating to a certain temperature, reaction. The reaction product was bisphenol A sodium salt.

3. reaction of bisphenol A sodium salt and hydrochloric acid

bisphenol A sodium salt and hydrochloric acid according to a certain molar ratio into the reaction kettle, adjust the pH value to a certain range, reaction. The reaction product was L-75.

3. post-treatment

After the reaction is completed, cooling, crystallization, filtration, washing, drying and other steps are performed to obtain a pure L-75 product.
Precautions for
4.

1. During the reaction process, it is necessary to strictly control the reaction temperature and pH value to ensure the smooth progress of the reaction and the quality of the product.
2. In the post-treatment process, it is necessary to pay attention to the conditions of crystallization and drying to avoid decomposition and deterioration of the product.

In short, the L-75 manufacturing method requires multiple steps, and the reaction conditions and post-treatment conditions need to be strictly controlled to ensure the quality and yield of the product. At the same time, it is necessary to pay attention to safety production and environmental protection requirements to ensure the safety and sustainability of the production process.

Previous： TMP production and manufacturing methods and processes.

Next： HDI manufacturing methods and processes.

News Categories