Manufacturing method of furfuryl alcohol
I. INTRODUCTION
Furfuryl alcohol is an important organic chemical raw material, which is widely used in synthetic resins, solvents, pharmaceuticals, pesticides and other fields. With the continuous development of science and technology, the manufacturing method of furfuryl alcohol has been improved and optimized. In this paper, we will introduce the manufacturing method of furfuryl alcohol, including raw material preparation, reaction process, post-treatment and other aspects.
II. Raw material preparation
The raw materials for the manufacture of furfuryl alcohol are mainly furfural and methanol. Furfural is a colorless transparent liquid with a special odor, which can be extracted from agricultural by-products waste such as rice husk and cottonseed husk. Methanol is a common inorganic chemical raw material which is easy to obtain.
3. Reaction process
The manufacturing process of furfuryl alcohol mainly includes the following steps:
1. Mixing furfural with methanol: mix furfural and methanol according to a certain proportion and stir well.
2. Adding acid catalyst: Add appropriate amount of acid catalyst, such as sulfuric acid, hydrochloric acid, etc., to the mixture to promote the reaction.
3. Heating reaction: the mixture is heated to a certain temperature and kept for a certain time, so that furfural and methanol undergo esterification reaction to produce furfuryl alcohol.
4. Cooling and separation: After the reaction, the reaction liquid is cooled to room temperature and the mixture of furfuryl alcohol and methanol is separated.
4. Post-treatment
1. Distillation and purification: the mixture of furfuryl alcohol and methanol is distilled to separate out the pure furfuryl alcohol.
2. Neutralization treatment: Neutralize the residual acid catalyst with lye to meet the environmental emission standard.
3. Product packing: Pack the pure furfuryl alcohol for transportation and storage.
V. Precautions
1. Control the quality and proportion of raw materials to ensure the smooth progress of the reaction and the quality of products.
2. Strictly control the reaction temperature and time to prevent the occurrence of side reaction and decomposition of products.
3. Pay attention to the sealing and corrosion resistance of the equipment to ensure production safety and product quality.
6. Conclusion
The manufacturing method of furfuryl alcohol involves a number of links and precautions, which need to strictly control the quality of raw materials, reaction conditions and post-treatment process and other factors to ensure the quality of the product and the safety of production. Meanwhile, with the continuous progress of science and technology and environmental protection requirements, the manufacturing method of furfuryl alcohol will be constantly updated and improved to make greater contributions to the development of the field of chemicals production.
