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[Chemical Knowledge]：Production and manufacturing method and process flow of diethanol monoisopropanolamine

Read： 548 Time：12months ago Source：Transform the World with Simplicity

Diethylmonoisopropanolamine (DEIPA) is an important chemical raw material, which is widely used in lubricating oil, cleaning agent, preservative, antioxidant and other fields. This article will introduce a common method of manufacturing diethanol monoisopropanolamine.

1. raw materials and equipment

1 raw materials: ethanolamine, isopropanol, sodium hydroxide.
2. Equipment: reaction kettle, stirrer, thermometer, condenser, separatory funnel, centrifuge, etc.

2. Manufacturing Steps

1. Ethanolamine and isopropanol are added to the reactor in a certain proportion and stirred evenly.
2. During stirring, sodium hydroxide solution is slowly added to adjust the pH to the desired range.
3. Heating the reaction kettle, maintaining a certain temperature, esterification reaction.
4. Monitor the pH value and temperature of the reaction solution in time during the reaction and adjust as required.
5. After completion of the reaction, the reaction solution was cooled and post-treated.

3. post-treatment step

1. the reaction solution is poured into a separatory funnel, and is allowed to stand and separate layers.
2. The upper liquid was separated and washed neutral with distilled water.
3. The lower liquid was centrifuged to obtain crude diethanol monoisopropanolamine.
4. Refine the crude product, such as distillation, crystallization and other steps to obtain a higher purity of diethanol monoisopropanolamine product.
Precautions for
4.

1. Pay attention to safety during operation and avoid contact with alkaline substances and high temperature liquids.
2. Strictly control the reaction temperature and pH value to ensure the smooth progress of the reaction.
3. In the post-treatment process, the product quality should be guaranteed to avoid the introduction of impurities.

5. yield and product quality

The yield and product quality of this manufacturing method are related to factors such as raw material quality, operating conditions and post-treatment processes. In the actual production process, optimization and adjustment should be made according to the specific situation to improve the yield and product quality.

In short, this paper introduces a common method of manufacturing diethanol monoisopropanolamine, including raw materials and equipment, manufacturing steps, post-processing steps and precautions. By mastering this method, it can provide high-quality diethanol monoisopropanolamine raw materials for chemical production and promote the development of related industries. In the actual production process, it is necessary to optimize and improve according to specific needs and conditions to improve production efficiency and economic benefits. At the same time, in order to ensure the quality and safety of products, relevant regulations and standards should be strictly observed, and quality control and safety management in the production process should be strengthened.

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