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[Chemical Knowledge]：What are the upstream raw materials for precipitated silica? What are the downstream products?

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Precipitated silica has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products are also quite rich. The following are some of the main upstream and downstream related products of precipitated silica:

1. upstream products:

(1) silicate raw materials: the production of precipitated silica mainly uses silicate as raw materials, such as sodium silicate, potassium silicate and so on. These raw materials through the acidification reaction, the formation of precipitate, and then after washing, drying and other processes, the precipitation of silica products.

(2) Acidifier: Acidifier is an indispensable raw material in the production process of precipitated silica, mainly used to adjust the pH value and promote the precipitation of silicate. Commonly used acidifying agents include sulfuric acid, hydrochloric acid, and the like.

2. Downstream products:

(1) Rubber products: Precipitated silica is used as a reinforcing agent in rubber products, which can improve the mechanical properties, wear resistance and anti-aging properties of rubber. Therefore, tires, hoses, tapes and other rubber products are precipitated silica downstream products.

(2) Plastic products: Precipitated silica can be added to plastic products to improve their heat resistance, hardness and dimensional stability. Therefore, plastic pipes, plates, profiles and other plastic products are also downstream products of precipitated silica.

(3) Coating: Precipitated silica can be used as a filler for coatings to improve the leveling, weather resistance and corrosion resistance of coatings. Therefore, various architectural coatings, industrial coatings and other coating products are also downstream products of precipitated silica.

(4) Ceramic products: Precipitated silica can be used as one of the raw materials of ceramic products to improve the density and mechanical properties of ceramic products. Therefore, various ceramic products are also downstream products of precipitated silica.

In short, precipitated silica has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products are quite rich, involving many fields, such as rubber, plastics, coatings, ceramics, etc.

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