Manufacturing method of tert-butyl acetate
tert-butyl acetate is an important organic chemical raw material, which is widely used in the fields of pharmaceuticals, pesticides, plastics, spices and so on. This article will introduce the manufacturing method of tert-butyl acetate.
I. Raw materials and equipment
1. Raw materials: acetic acid, tert-butanol, catalyst (sulfuric acid or hydrochloric acid)
2. Equipment: reaction kettle, condenser, water divider, stirrer, thermometer, pH meter, etc.
II. Manufacturing steps
1. Feeding: add measured tert-butanol into the reaction kettle, then add catalyst.
2. Heating reaction: turn on the stirrer and slowly heat the reactor to keep the temperature within a certain range, so as to make the esterification reaction between tert-butanol and acetic acid.
3. Separation and purification: After the reaction is completed, cool the reaction solution to room temperature, separate the unreacted raw materials and by-products, and then purify by distillation to obtain tert-butyl acetate.
III. Precautions
1. Strictly control the reaction temperature to prevent the occurrence of side reactions caused by too high temperature.
2. Adjust the amount of catalyst timely according to the reaction process to ensure the smooth progress of the reaction.
3. During the separation and purification process, pay attention to the operation specification to avoid the product being contaminated.
4. Safety and environmental protection
1. Strictly follow the safety regulations during the operation, avoid contacting fire and heat sources.
2. Waste catalyst and by-products should be properly disposed of to avoid pollution to the environment.
V. Quality control
1. Conduct quality inspection of raw materials to ensure that the purity of raw materials meets the requirements.
2. Real-time monitoring of the production process to ensure stable product quality.
3. Conduct quality inspection on finished products to ensure that the products meet the relevant standards.
All in all, the manufacture of tert-butyl acetate requires strict compliance with the operating procedures, attention to safety and environmental protection, and ensuring product quality. By mastering the appropriate manufacturing method, it can create economic and social benefits for the enterprise.
