Manufacturing method of butyl formate
I. Introduction
Butyl formate is a common raw material for the production of chemicals, which is widely used in the industries of paints, coatings, printing inks and fragrances. In this paper, we will introduce the manufacturing method of butyl formate, including raw material preparation, reaction process, and post-treatment.
II. Raw material preparation
The main raw materials for manufacturing butyl formate are formic acid and n-butanol. In the process of raw material preparation, the purity and quality of raw materials need to be ensured to avoid adverse effects on the subsequent reaction.
Third, the reaction process
The manufacturing process of butyl formate is mainly an esterification reaction, i.e., under the action of acid catalyst, formic acid and n-butanol react to form butyl formate and water. The following are the specific reaction steps:
1. Add formic acid and n-butanol into the reaction kettle according to a certain molar ratio, and at the same time add an appropriate amount of acid catalyst.
2. Turn on the stirring, so that the raw materials are fully mixed.
3. Heat the reactor and control a certain reaction temperature to make the reaction proceed.
4. Monitor the reaction process and stop heating when the yield of butyl formate reaches a certain value.
4. Post-treatment
After the reaction is finished, post-treatment is needed to obtain pure butyl formate product. Post-treatment mainly includes the following steps:
1. Cool down the reactor so that the reaction liquid is cooled down to room temperature.
2. separating out the unreacted formic acid and n-butanol, either by distillation or extraction.
3. Refining of the butyl formate to remove impurities.
4. Finally, carry out product quality testing, and pack and store after meeting the standard.
V. Precautions
1. In the manufacturing process, the proportion of raw materials and reaction temperature should be strictly controlled to avoid the occurrence of side reactions.
2. The selection of acid catalyst has important influence on the reaction speed and yield, and suitable catalyst should be selected according to the actual situation.
3. In the post-treatment process, attention should be paid to the operation specification and safety to avoid product contamination and personnel injury.
VI.CONCLUSION
The manufacturing method of butyl formate mainly includes the steps of raw material preparation, reaction process and post-treatment. By controlling the proportion of raw materials, reaction temperature and choice of catalyst, high quality butyl formate products can be obtained. In the post-treatment process, attention should be paid to operation standardization and safety to ensure product quality and production safety.
