Phenol ketone products

Plastic rubber

Current Location： Home > News > Chemical Knowledge > The production and manufacturing method and process flow of secondary butyl ester.

[Chemical Knowledge]：The production and manufacturing method and process flow of secondary butyl ester.

Read： 925 Time：19months ago Source：Transform the World with Simplicity

The manufacturing method
of sec-butyl ester
sec-butyl ester is an important organic chemical raw material, which is widely used in the fields of medicine, pesticide, spice, plastic and rubber. This article will introduce the manufacturing method of sec-butyl ester, including the steps of raw material preparation, reaction process, post-treatment and product purification.

1. Raw Material Preparation

The main raw materials for the manufacture of sec-butyl ester are butanol and acetic acid. Among them, butanol should choose high purity industrial products, acetic acid can use food grade acetic acid. In addition, it is necessary to prepare a certain catalyst, such as sulfuric acid or hydrochloric acid.

2. reaction process

1. esterification reaction
butanol and acetic acid according to a certain molar ratio into the reaction kettle, while adding the right amount of catalyst. After heating to a certain temperature, maintain constant temperature stirring for a certain period of time, so that butanol and acetic acid fully react to generate sec-butyl ester and water.

2. Dehydration Reaction
In order to obtain sec-butyl ester having higher purity, it is necessary to dehydrate the reaction solution. An appropriate amount of a desiccant, such as magnesium sulfate or anhydrous calcium chloride, may be added to absorb residual moisture in the reaction solution.

3. Post-Treatment
After completion of the
reaction, the reaction solution needs to be post-treated. First, the reaction solution is cooled to room temperature, and then an appropriate amount of alkaline absorbent is added to neutralize the acid remaining in the reaction solution. Next, a liquid separation operation was performed to separate an upper organic layer and a lower aqueous layer.

4. product purification

In order to obtain sec-butyl ester of higher purity, it is necessary to purify the separated organic phase. The sec-butyl ester can be separated from the organic phase by distillation to obtain a product of higher purity.
Precautions for
5.

1. During the operation, attention should be paid to controlling the reaction temperature and stirring speed to ensure the smooth progress of the reaction.
2. When adding catalyst, the amount of catalyst should be controlled to avoid corrosion of equipment.
3. In the post-treatment process, care should be taken to control the amount of alkaline absorbent to avoid excessive neutralization and product loss.
4. In the process of product purification, attention should be paid to controlling the distillation temperature and pressure to ensure the purity and yield of the product.

In short, the manufacturing method of sec-butyl ester involves multiple steps and precautions, and requires operators to have rich experience and skills. At the same time, in order to ensure the quality and safety of the product, it is also necessary to strictly control the quality of raw materials and reaction conditions to ensure the stability and reliability of the production process.

Previous： The production and manufacturing method and process of butyl ester.

Next： Manufacturing method and process of ethyl ester

News Categories