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[Chemical Knowledge]：What are the upstream raw materials for dibasic acid esters (DBE) and what are the downstream products?

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Dibasic acid ester (DBE) has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products are rich and diverse. The following are some common upstream and downstream related products of dibasic acid esters:

1. Upstream products:

(1) Ethanol: Ethanol is one of the important raw materials for the production of dibasic acid esters. It reacts with carboxylic acid to form dibasic acid esters.

(2) Carboxylic acid: Esterification of carboxylic acid with ethanol produces the corresponding dibasic acid ester. Common carboxylic acids include acetic acid, propionic acid, butyric acid, and the like.

(3) Catalyst: The esterification reaction usually requires the participation of a catalyst. Commonly used catalysts include acid catalysts such as sulfuric acid and hydrochloric acid, and alkaline absorbents.

2. Downstream products:

(1) Plastic plasticizers: Dibasic acid esters can be used as plastic plasticizers to improve the processing performance and flexibility of plastics. Common plastics include polyvinyl chloride, polypropylene, etc.

(2) Solvent: The dibasic acid ester has good solubility and volatility, and can be used as a solvent for coatings, inks, adhesives and other fields.

(3) Flavors and flavors: Some dibasic acid esters have special flavors and can be used to produce flavors and flavors to enhance the taste and smell of food.

(4) Synthetic lubricating oil: dibasic acid ester can be used as the base oil of synthetic lubricating oil, with high viscosity and lubricating performance, suitable for lubrication under high temperature and high load conditions.

In short, dibasic acid esters are widely used in the field of chemical production raw materials in the upstream and downstream related products, which is of great significance to promote the development of the chemical industry.

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