As a non-toxic and high-performance additive, silica is widely used in rubber, pharmaceutical industry, pesticides, inks, paints, coatings, toothpaste, paper, food, feed, cosmetics and other fields.
silica, also known as hydrated silica, is an important reinforcing material in the rubber industry. The manufacturing methods of white carbon black can be divided into three categories: gas-phase method, precipitation method, and dissociation method.
The main varieties of precipitated white carbon black in China include white carbon black for shoe making, white carbon black for ordinary tires, silica for radial tires, silica for room temperature silicone rubber, silica for opening agents, and silica for fire extinguishing agents. The appearance states include ultra-fine, ultra-fine, powdery, and blocky.
Analysis of the current market situation of precipitated silica industry in China:
In recent years, guided by the development concept of "innovation, coordination, green, openness, and sharing", the white carbon black industry has maintained sustained and healthy development overall. In terms of production capacity, according to statistics, as of 2019, China's precipitation method white carbon black production capacity was 2.345 million tons, a year-on-year increase of 3.76%.
From the perspective of enterprise scale, there were a total of 54 manufacturers of precipitated silica in China in 2019, with 17 enterprises having a scale of over 50000 t/a, a production capacity of 1.691 million t/a, and a production capacity of 1.381 million t/a.