Manufacturing Method of Isopropyl Acetate
Isopropyl Acetate is an important organic chemical raw material, which is widely used in coatings, printing ink, leather, medicine, pesticide and other fields. This article will introduce the manufacturing method of isopropyl acetate.
I. Raw materials and equipment
1. Raw materials: acetic acid, isopropanol, catalyst (sulfuric acid or hydrochloric acid)
2. Equipment: reaction kettle, condenser, water separator, distillation tower, storage tanks, etc.
II. Manufacturing process
1. Feeding: add a fixed amount of acetic acid, isopropanol and catalyst into the reaction kettle.
2. Reaction: Turn on the stirring and heat the reactor to make the materials react at a certain temperature. Control the reaction temperature to avoid the occurrence of side reactions.
3. Separation: At the end of the reaction, the reaction liquid is introduced into the water separator to separate the unreacted acetic acid and isopropanol.
4. Distillation: Distill the isopropyl acetate in the water separator to obtain a product with higher purity.
5. Packing: Load the finished product of isopropyl acetate into special storage tank or packing barrel.
3. Operation points
1. Strictly control the reaction temperature to avoid too high or too low temperature affecting the product quality and yield.
2. Discharge the unreacted acetic acid and isopropyl alcohol in the water separator in time to maintain the effect of water separation.
3. Control the temperature at the top and bottom of the tower during distillation to ensure product quality.
4. Regular maintenance and repair of equipment to ensure normal operation.
4. Safety and environmental protection
1. Strictly observe the safety operation regulations during the operation to avoid fire, explosion and other accidents.
2. Manage wastewater, waste gas and other pollutants to meet the national emission standards before discharge.
3. The production equipment should be sealed to reduce the running, bubbling, dripping and leaking phenomenon in the production process.
V. Quality control
1. Conduct quality inspection of raw materials to ensure that the quality of raw materials meets the production requirements.
2. Real-time monitoring of the production process, timely detection and resolution of problems.
3. Conduct quality inspection on finished products to ensure that the product quality meets the national standard or customer requirements.
In short, the manufacture of isopropyl acetate requires strict compliance with operating procedures and safety and environmental protection requirements, controlling the quality of raw materials, reaction conditions, separation and distillation and other process parameters to ensure product quality and production efficiency. At the same time, strengthen the maintenance and repair of equipment to reduce production costs and improve the economic efficiency of the enterprise.
