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

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Manufacturing method
of octyl acrylate
octyl acrylate is an important organic chemical raw material, widely used in coatings, plastics, rubber, fiber and other fields. This article will introduce the manufacturing method of octyl acrylate, including raw material preparation, reaction process, post-treatment and so on.

1. Raw Material Preparation

The main raw materials for the manufacture of octyl acrylate include acrylic acid, octanol and a catalyst. Among them, acrylic acid can be used commercially available acrylic acid raw materials, and octanol can be used industrial grade octanol. As the catalyst, an acid catalyst such as sulfuric acid or p-toluenesulfonic acid is generally used.

2. reaction process

1. esterification reaction

acrylic acid and octanol according to a certain molar ratio into the reaction kettle, after adding the catalyst began to heat up. In the reaction process, it is necessary to control a certain temperature and pressure, and at the same time constantly stirring, in order to promote the reaction. The octyl acrylate and water generated by the esterification reaction need to be separated in time to avoid affecting the reaction.

2. Dehydration Reaction

Since water generated by the esterification reaction affects the progress of the reaction, a dehydration reaction is required. Generally, molecular sieve or magnesium sulfate desiccant is used for dehydration treatment to ensure the smooth progress of the reaction.

3. Refining Process After the

reaction is completed, a refining treatment is required to remove impurities and by-products therein. Generally, it is refined by distillation to obtain octyl acrylate products with high purity.

3. post-treatment

finished octyl acrylate needs to be stored and packaged to ensure product quality and stability. During storage, care should be taken to avoid direct sunlight and high temperature environment, while maintaining the tightness of the storage container to prevent product deterioration and pollution.

In short, the manufacturing process of octyl acrylate needs to pay attention to the preparation of raw materials, the control of the reaction process and the post-treatment to ensure the quality and yield of the product. At the same time, it is necessary to strictly abide by the relevant safety production specifications and environmental protection requirements to ensure the safety and sustainability of production.

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