Current Location： Home > News > Chemical Knowledge > Production and manufacturing method and process flow of cyclohexanol

[Chemical Knowledge]：Production and manufacturing method and process flow of cyclohexanol

Read： 1194 Time：19months ago Source：Transform the World with Simplicity

of manufacturing method
of cyclohexanol Cyclohexanol is an important organic chemical raw material, which is widely used in the production of adipic acid, caprolactone, hexamethylene diamine and other chemicals. This paper will introduce the manufacturing method of cyclohexanol, including raw material selection, reaction principle, process flow, equipment selection and so on.

1. raw material selection

cyclohexanol manufacturing raw materials are mainly benzene, hydrogen, propylene and so on. Among them, benzene is the most commonly used raw material because of its low price, wide source and easy transportation and storage. Hydrogen is used as a reducing agent for the reduction of benzene to cyclohexane. Propylene, as a raw material for the carbonylation agent, reacts with cyclohexane to produce cyclohexanol.

2. reaction principle

The production of cyclohexanol mainly uses two methods: hydrogenation and carbonylation. The hydrogenation method is to hydrogenate benzene with hydrogen under the action of a catalyst to generate cyclohexane, which is then oxidized to cyclohexanol. The carbonylation method is a carbonylation reaction of propylene and benzene under the action of a catalyst to produce cyclohexanone, which is then reduced to cyclohexanol.

3. Process

1. Hydrogenation Process

hydrogenation process includes the hydrogenation reaction of benzene, the oxidation reaction of cyclohexane, the purification of cyclohexanol and other steps. The specific process is as follows:

(1) After mixing benzene and hydrogen, it enters a hydrogenation reactor, and carries out hydrogenation reaction under the action of a catalyst to generate cyclohexane.

(2) Cyclohexane enters the oxidation reactor and is oxidized with oxygen under the action of a catalyst to produce cyclohexanol and by-products.

(3) The cyclohexanol is separated from the by-product by a separation method such as distillation and extraction to obtain a cyclohexanol product having a high purity.

2. Carbonylation Process
The
carbonylation process includes the carbonylation reaction of propylene and benzene, the reduction reaction of cyclohexanone, the purification of cyclohexanol and other steps. The specific process is as follows:

(1) After propylene and benzene are mixed, the mixture enters into a carbonylation reactor, and the carbonylation reaction is carried out under the action of a catalyst to generate cyclohexanone.

(2) Cyclohexanone enters the reduction reactor, and is subjected to a reduction reaction with hydrogen under the action of a catalyst to generate cyclohexanol and by-products.

(3) The cyclohexanol is separated from the by-product by a separation method such as distillation and extraction to obtain a cyclohexanol product having a high purity.

4. equipment selection

In the manufacturing process of cyclohexanol, the equipment that needs to be used includes hydrogenation reactor, oxidation reactor, carbonylation reactor, reduction reactor, distillation tower, extraction tower, etc. When selecting equipment, it is necessary to consider the reliability, efficiency, safety and other factors of the equipment to ensure the smooth progress of the production process.
Precautions for
5.

1. In the production process, it is necessary to strictly control the reaction temperature and pressure to ensure the smooth progress of the reaction and the quality of the product.
2. It is necessary to regularly maintain and maintain the production equipment to ensure the normal operation and service life of the equipment.
3. When dealing with waste, it is necessary to comply with relevant environmental regulations and safety regulations to avoid pollution to the environment.

In short, the manufacturing method of cyclohexanol needs to be selected and designed according to specific production conditions and requirements to ensure product quality and production economy. At the same time, it is necessary to strictly abide by relevant laws and safety regulations during the production process to ensure production safety and environmental protection.

Previous： The production and manufacturing method and process of decanediol.

Next： Production and manufacturing method and process flow of methyl cyclohexanol

News Categories