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[Chemical Knowledge]：Production method and process of ethyl acetate

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Ethyl acetate manufacturing method

Ethyl acetate is an important organic chemical raw material, widely used in medicine, food, plastics, dyes and other fields. Therefore, it is of great significance to study the manufacturing method of ethyl acetate for improving production efficiency, reducing costs and improving product quality. This paper will introduce the manufacturing method of ethyl acetate, including the reaction principle, process flow, equipment selection, operation points and so on.

1. Reaction Principle

The production of ethyl acetate is achieved by the esterification reaction of acetic acid and ethanol. The esterification reaction is an acid-catalyzed reaction, and the commonly used catalysts are sulfuric acid or hydrochloric acid. The reaction equation is as follows:

CH3COOH C2H5OH → CH3COOC2H5 H2O

2. Process

The manufacturing process of ethyl acetate mainly includes the following steps:

1. Ingredients: Acetic acid and ethanol are added to the reactor in a certain proportion.

2. Esterification reaction: Under the action of catalyst, acetic acid and ethanol are esterified to generate ethyl acetate and water.

3. Distillation: Ethyl acetate and water were separated by distillation to give pure ethyl acetate.

4. Refining: Refining ethyl acetate to remove impurities therein.

3. equipment selection

In the manufacturing process of ethyl acetate, the equipment that needs to be used includes reactors, distillation columns, refining tanks, etc. When selecting equipment, it is necessary to consider factors such as production scale, product quality, operation and maintenance.

4. operation points

1. control reaction temperature: esterification reaction is exothermic reaction, need to control the reaction temperature, avoid side reaction caused by excessive temperature.

2. Control the amount of catalyst: too much catalyst will lead to equipment corrosion, too little will affect the reaction rate, the need to control the appropriate amount.

3. Control distillation temperature: In the distillation process, it is necessary to control the appropriate temperature to ensure the purity and yield of ethyl acetate.

4. Regular maintenance of equipment: regular inspection and maintenance of equipment to ensure the normal operation of equipment and improve production efficiency.

5. safety production

In the manufacturing process of ethyl acetate, it is necessary to pay attention to safety production to avoid fires, explosions and other accidents. The following measures need to be taken:

1. Strictly control the reaction temperature and pressure to avoid overtemperature and overpressure.

2. Regularly inspect and maintain the equipment to ensure the safety and reliability of the equipment.

3. Operators need to be professionally trained and familiar with operating procedures and safety knowledge.

4. The production site needs to be equipped with fire-fighting equipment and other safety facilities to ensure production safety.

In short, the manufacture of ethyl acetate requires knowledge of the reaction principle, process flow, equipment selection, operation points, etc., and attention should be paid to safe production to ensure the smooth progress of the production process.

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