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[Chemical Knowledge]：Production and manufacturing method and process of hexanol

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The manufacturing method
of hexanol
1. Introduction

hexanol is an important organic chemical raw material, widely used in the production of plasticizers, solvents, stabilizers and other chemical products. With the continuous progress of science and technology, the manufacturing method of hexanol is constantly improved and optimized, which improves the production efficiency and product quality. This article will introduce several common ethanol manufacturing methods.

2. Ethanol Manufacturing Method

1. Ethylene hydration

Ethylene hydration is one of the main methods for the production of hexanol. In this method, ethylene and water are added to produce ethanol under the action of a catalyst, and then ethanol is dehydrogenated to produce hexanol.

reaction equation is as follows:

C2H4 H2O → C2H5OH

C2H5OH → C2H4 H2O (dehydrogenation reaction)

C2H4 H2 → C2H6 (hydrogenation reaction)

C2H6 H2O → C2H5OH H2 (hydration reaction)
This method is widely used in industrial production
to its advantages of easy availability of raw materials, mild reaction conditions and simple operation.

2. ethanol dehydrogenation method

ethanol dehydrogenation method is the ethanol in high temperature, high pressure and under the action of catalyst, dehydrogenation reaction to produce hexanol method. The method has high selectivity and yield, while avoiding the formation of by-products.

reaction equation is as follows:

C2H5OH → C2H4 H2O (dehydrogenation reaction)

C2H4 H2 → C2H6 (hydrogenation reaction)

C2H6 H2O → C2H5OH H2 (hydration reaction)

However, this method requires high temperature and high pressure reaction conditions, and requires high equipment, so the cost is relatively high.

3. acetaldehyde hydrogenation

acetaldehyde hydrogenation is acetaldehyde and hydrogen in the role of the catalyst, the addition reaction to generate ethanol, and then ethanol dehydrogenation reaction to generate hexanol method. The method has the advantages of mild reaction conditions, simple operation and high selectivity. The

reaction equation is as follows:

CH3CHO + H2 → C2H5OH +

C2H5OH → C2H4 + H2O (dehydrogenation reaction)

However, this method requires a large amount of catalyst and also produces some by-products, so subsequent separation and purification operations are required. Comparison and selection
of

3. ethanol manufacturing methods The above
introduces three common ethanol manufacturing methods, each of which has its advantages, disadvantages and scope of application. When choosing a manufacturing method, it is necessary to consider comprehensively according to the specific situation, including the source of raw materials, production costs, product quality, environmental protection and other factors. At the same time, it is also necessary to select a suitable manufacturing method according to market demand and production scale.

4. conclusion

as an important organic chemical raw material, its manufacturing method has been continuously improved and optimized, and the production efficiency and product quality have been improved. When choosing a manufacturing method, it is necessary to consider comprehensively according to the specific situation to select the most suitable manufacturing method.

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