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[Chemical Knowledge]：What are the upstream raw materials for specialty esters? What are the downstream products?

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Special esters are widely used in the field of chemical production raw materials, and their upstream and downstream related products are also very rich. This paper will introduce the upstream raw materials and downstream related products of special esters respectively.

1. special ester upstream raw material

1. alcohol: alcohol is an important raw material in the production of special ester, commonly used alcohols including methanol, ethanol, propanol and so on. These alcohols are esterified with acids or acid chloride compounds to produce the corresponding special esters.
2. Acids: Acids are another important raw material for the production of special esters. Commonly used acids include acetic acid, propionic acid, butyric acid, etc. The esterification of acids and alcohols produces the corresponding special esters.
3. acid chloride compounds: acid chloride compounds can also be used as raw materials for the production of special esters, esterification reaction with alcohols to generate the corresponding special esters.

2. the downstream related products of special esters

1. Plastic plasticizers: Special esters can be used as plastic plasticizers to improve the processing performance and use performance of plastics. Common plastic plasticizers include phthalic acid esters, terephthalic acid esters, etc.
2. Coating: special ester can be used as film-forming material of coating to improve the weather resistance, water resistance and other properties of the coating. Common specialty esters for coatings include acrylates, alkyd resins, and the like.
3. Fine chemicals: Special esters can also be used to produce various fine chemicals, such as spices and pharmaceutical intermediates.

In short, special esters are widely used in the field of chemical production raw materials, and their upstream and downstream related products are also very rich. Understanding the upstream and downstream related products of special esters will help enterprises to better grasp market opportunities and improve the added value and competitiveness of products. At the same time, it also helps to promote the green development and sustainable development of the chemical industry.

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