High-performance ultrafine silica-alumina carbon black production technology

High-performance super-fine silica-alumina carbon black is a new type of industrial rubber reinforced and filled with gangue as raw material. It has formed a series of products with low processing cost and good comprehensive technical performance. Since it was put into production in 1992, it has been continuously improved and it has grown to the third generation.

The Department of Materials Engineering of the Department of Materials Science and Technology of Tsinghua University cooperated with the original inventor of the technology and used superfine grinding and surface modification technology to upgrade the existing products, making them more competitive in the market. A new generation of technology can develop new silica-alumina carbon blacks based on the characteristics of the local resources. Such as the use of oil shale and oil refining waste residue, power plant fly ash, low-cost anthracite coal, various waste carbon blacks that cannot meet the requirements for quality recovery, various crop straws, and unqualified carbon blacks for tire recycling. Characteristic compound silicon aluminum carbon black.

The raw materials of traditional carbon black are high-energy substances such as petroleum, coal tar, natural gas, coke oven gas, etc., which have large energy consumption and high costs, and the selling price is mostly over 4500 yuan/ton. Silica-alumina carbon black is a composite material composed of inorganic compounds and organic compounds, and has many excellent properties compared with traditional materials. The density of the conventional carbon black is 1.8-1.9g/cm3, while the silica-alumina carbon black is 1.2-1.8g/cm3. The use of silica-alumina carbon black can obtain greater economic benefits. It can act as a variety of additives, not only greatly reduce costs, but also simplify the process. The compatibility with the organic polymer compound is good, and it is easy to eat into the rubber compound during the processing of the product, which can improve the performance of the product and save the power consumption.

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