Current Location： Home > News > Chemical Knowledge > Production process and preparation method of cyclohexanone

[Chemical Knowledge]：Production process and preparation method of cyclohexanone

Read： 920 Time：17months ago Source：Transform the World with Simplicity

Cyclohexanone is an important organic compound, which is widely used in chemical industry and medicine. It is a colorless, transparent, volatile liquid with unique aroma and solubility. This article will introduce the production process and preparation method of cyclohexanone, hoping to be helpful to researchers in related fields.

环已酮.jpg

The production process of cyclohexanone mainly includes three methods: oxidation method, acyloxime method and reduction method.

Oxidation is a commonly used method for the production of cyclohexanone. Cyclohexanone is obtained by catalytic oxidation of cyclohexene in oxygen atmosphere. This method has the advantages of easy availability of raw materials, mild reaction conditions and low cost. As the oxidizing agent, hydrogen peroxide, oxygen, peroxide or the like is usually used. Cyclohexene is prepared by dehydrogenation or cracking of cyclohexane. The oxidation reaction is usually carried out at a temperature in the range of 20°C to 60°C. Attention should be paid to the addition of excess oxidant in the reaction and the control of the reaction rate to avoid the occurrence of side reactions.
The oxime method is a method in which cyclohexanone is obtained by reacting cyclohexanone with a carbonyl oxamate. This method has the advantages of wide source of raw materials and mild process conditions. However, the reaction rate of the acyl oxime method is slow and requires the presence of a catalyst. Commonly used acyl oxime agents are β-naphthol oxime, phenol oxime, etc. The reaction temperature is usually between 50°C and 70°C. It is necessary to control the reaction process to avoid the formation of excessive by-products and the reduction of product quality.

The reduction method is a method of reducing aromatic hydrocarbons to aliphatic compounds, and cyclohexanone can be produced by hydrogen reduction. This method can be used for high purity production and scale-up experiments of cyclohexanone. The reaction is usually carried out under a hydrogen atmosphere and requires the presence of a catalyst. Commonly used catalysts are precious metals, copper-based catalysts, etc. The reduction reaction needs to control the reaction time and temperature to avoid incomplete reaction or by-products.

In addition to the above three main production processes, there are some other methods also suitable for the preparation of cyclohexanone, such as microwave-assisted synthesis, ionic liquid synthesis, etc. These methods have the advantages of simplicity and environmental protection, but further research and exploration are needed.

In the production of cyclohexanone, the selection of appropriate process conditions and catalysts has an important impact on the quality and yield of the product. It is necessary to select the appropriate method and adjust the reaction conditions according to the specific production requirements and experimental conditions to achieve the desired effect.
Cyclohexanone production process includes oxidation, acyloxime and reduction, of which oxidation is one of the most commonly used methods. Various methods have advantages and disadvantages, and it is necessary to choose the appropriate method according to the specific situation. In production, attention should be paid to controlling the reaction conditions and the use of catalysts to achieve the best results.

Previous： Production process and preparation method of hydroquinone

Next： Production process and preparation method of chlorinated phenol

News Categories