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[Chemical Knowledge]：Production and manufacturing method and process of isobutyl acetate

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of manufacturing method
of isobutyl acetate Isobutyl acetate is an important organic chemical raw material, which is widely used in coating, printing ink, perfume, medicine and other fields. This paper will introduce the manufacturing method of isobutyl acetate, including raw material selection, reaction principle, process flow, equipment selection and so on.

1. Raw Material Selection

The manufacture of isobutyl acetate mainly uses acetic acid and isobutanol as raw materials, wherein acetic acid can be obtained by using glacial acetic acid or acetic anhydride, and isobutanol can be reduced by using n-butanol or isobutyraldehyde. When selecting raw materials, factors such as purity, moisture, and acidity need to be considered to ensure the smooth progress of the reaction and the quality of the product.

2. reaction principle

the manufacture of isobutyl acetate is realized by esterification reaction of acetic acid and isobutanol. The reaction equation is as follows:

CH3COOH (CH3)2CHOH → CH3COOC(CH3)3 H2O

This reaction is a reversible reaction and requires the use of catalysts to promote the reaction. Common catalysts include sulfuric acid, hydrochloric acid, p-toluenesulfonic acid, etc.

3. Process

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

1. Feeding: Add the measured acetic acid and isobutanol into the reactor.
2. Heating reaction: open the stirring, heating the reaction kettle, control the reaction temperature in a certain range, so that the reaction.
3. Separation and purification: After the reaction is completed, the reaction solution is cooled to room temperature, and unreacted raw materials and water are separated to obtain a crude product.
4. Refining: The crude product is distilled to obtain the pure isobutyl acetate product.

4. equipment selection

In the manufacturing process of isobutyl acetate, it is necessary to use reactor, stirrer, heater, condenser, separator and other equipment. When selecting equipment, it is necessary to comprehensively consider factors such as production scale, product quality requirements, and operation methods to ensure equipment reliability and production efficiency.
Precautions for
5.

1. During the operation, it is necessary to strictly control the reaction temperature and time to avoid the occurrence of side reactions.
2. In the process of separation and purification, it is necessary to ensure the separation effect and operation safety.
3. During the use of the equipment, regular maintenance and maintenance are required to ensure the normal operation and service life of the equipment.

In short, the manufacture of isobutyl acetate requires the selection of appropriate raw materials, the mastery of the reaction principle, the development of a reasonable process, the selection of appropriate equipment, and strict compliance with operating procedures and safety requirements to ensure product quality and production safety.

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