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[Chemical Knowledge]：Production process and preparation method of n-butyl acrylate

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n-Butyl acrylate is an organic compound widely used in coatings, printing inks, industrial adhesives and other industrial fields. The following will introduce a production process and preparation method for butyl acrylate for reference.

the first step: raw material preparation

n-butyl acrylate production of the main raw materials for n-butanol and acrylic acid. Butanol is produced by hydrogenation of butenes, and acrylic acid is obtained by distillation of oil refining by-products. These raw materials need to be carefully processed and purified to ensure the quality and stability of the product. The second step of the

: the polymerization reaction

inject the pretreated n-butanol and acrylic acid into the reaction kettle, add a certain amount of initiator and stabilizer, and carry out the polymerization reaction under high pressure and high temperature. The reaction conditions need to be adjusted according to the specific situation to ensure that the quality of the final product meets the relevant standards. The third step of the

: dehydration and degassing

After the polymerization reaction is completed, the water and impurities in the reactant need to be removed to improve the purity and stability of the product. In this step, dehydration and degassing equipment is usually used to heat the reaction system to a high temperature and low pressure state, so that the moisture and gas therein are volatilized. The fourth step of the

: separation and purification

After dehydration and degassing, n-butyl acrylate can be further separated and purified by distillation, extraction and other methods. These methods can effectively remove impurities and impure substances and improve the purity and quality of the final product.

Step 5: Packaging and Storage

After the above steps are completed, n-butyl acrylate will be transported to the packaging area for packaging and storage. Sealed containers such as iron drums or plastic drums are usually used to tightly package the products and mark the specifications, production date, batch and other information for subsequent use and tracking.

In summary, the production process and preparation method of n-butyl acrylate are more complex, and it is necessary to gradually complete each step under the premise of paying attention to product quality. Through strict management and control, we can prepare stable and high quality n-butyl acrylate products and provide high-quality chemical raw materials for various industrial fields.