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

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The manufacturing method
of cyclohexanone oxime
1. Introduction

Cyclohexanone oxime is an important chemical raw material, widely used in medicine, pesticides, dyes and other fields. Therefore, it is of great significance to study the manufacturing method of cyclohexanone oxime for improving production efficiency, reducing cost and improving product quality. This paper will introduce a manufacturing method of cyclohexanone oxime, including raw material preparation, reaction process, post-treatment and so on.

2. Raw Material Preparation

The main raw materials for the manufacture of cyclohexanone oxime are cyclohexanone and hydroxylamine salts. Among them, cyclohexanone can be prepared by the hydrogenation of benzene as a petrochemical raw material, and hydroxylamine salt can be prepared by the reaction of hydroxylamine and acid. In the process of raw material preparation, it is necessary to ensure the purity and quality of raw materials to avoid adverse effects on subsequent reactions.

3. reaction process

The manufacturing process of cyclohexanone oxime mainly includes the following steps:

1. cyclohexanone and hydroxylamine salt are added into the reactor according to a certain molar ratio, and an appropriate amount of solvent is added at the same time, so as to improve the reaction efficiency.
2. The reaction is stirred at a certain temperature and pressure. During the reaction, it is necessary to control the reaction temperature and time to ensure the progress of the reaction and the quality of the product.
3. After completion of the reaction, cooling, filtration, washing and the like are carried out to obtain a crude cyclohexanone oxime.

4. post-treatment

post-treatment process mainly includes the following steps:

1. Refine the crude cyclohexanone oxime to remove impurities and improve the purity of the product. Commonly used refining methods include recrystallization, distillation, and the like.
2. The refined cyclohexanone oxime product analysis and quality testing to ensure product quality and compliance with relevant standards.

5. precautions

In the manufacturing process of cyclohexanone oxime, the following matters need to be paid attention to:

1. Control the reaction temperature and pressure to avoid side reactions or product quality problems during the reaction.
2. Select the appropriate solvent and reaction conditions to improve the reaction efficiency and product quality.
3. In the post-processing process, it is necessary to ensure the purity and quality of the product to avoid adverse effects on subsequent applications.

6. conclusion

This paper introduces a manufacturing method of cyclohexanone oxime, including raw material preparation, reaction process, post-treatment and so on. In the actual production process, it is necessary to optimize and improve the manufacturing method according to the specific situation to improve production efficiency, reduce costs, and improve product quality. At the same time, it is necessary to pay attention to safety production and environmental protection requirements to ensure the sustainability and stability of the production process.

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