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Time:19months ago
Source:Transform the World with Simplicity
Trimethylolethane (Triethanolamine, TEA) is an important raw material for chemical production, which is widely used in detergent, lubricant, antioxidant, pharmaceutical intermediates and other fields. This article will introduce the manufacturing method of trimethylolethane, including raw material preparation, reaction process, post-treatment and precautions.
1. raw material preparation
1. Ethylene oxide: ethylene oxide is the main raw material of trimethylol ethane, usually using industrial grade ethylene oxide, higher purity requirements.
2. ammonia water: ammonia water as alkaline absorbent, reaction with ethylene oxide to generate trimethylol ethane.
2. reaction process
1. ammonia water is added to the reactor to control a certain temperature and pressure.
2. Ethylene oxide was slowly added dropwise while maintaining stirring to allow the reaction to proceed sufficiently.
3. The reaction temperature and time are controlled to ensure the formation of trimethylolethane.
4. After completion of the reaction, the reaction mixture was cooled to obtain a crude trimethylolethane.
3. post-treatment
1. neutralize the crude product and adjust the pH value to neutral or slightly acidic.
2. A distillation operation is carried out to separate unreacted raw materials and impurities, and the target trimethylolethane is collected.
3. Conduct quality inspection on the trimethylolethane obtained by distillation, and package and put into storage after meeting the standard.
4. Precautions
1. The temperature and pressure should be strictly controlled during the reaction to ensure the smooth progress of the reaction.
2. Pay attention to safety during operation, avoid contact with fire and heat sources, and prevent explosion accidents.
3. In the post-treatment process, product quality should be ensured to avoid the introduction of new impurities.
Through the above steps, we can produce high-quality trimethylolethane. In the actual production process, it is necessary to optimize and adjust according to the specific equipment and process conditions to improve production efficiency and product quality. At the same time, strengthen the safety management and environmental protection measures in the production process to ensure the safety and sustainability of the production process. In short, mastering the manufacturing method of trimethylolethane is of great significance to the field of chemical production, which helps to improve production efficiency, reduce costs and meet market demand.