Graphite cathode block products are made of high-quality petroleum coke as raw material and asphalt as binder after roasting and finishing. The generation of graphite cathode block is mainly to meet the needs of high conductivity, high thermal conductivity, high sodium corrosion resistance and high thermal shock resistance required for electrolytic aluminum production. It is a new cathode carbon block for aluminum electrolytic cell. Since the 21st century, China graphite cathode block products have been widely used in aluminum electrolytic cells of major aluminum companies, especially 250-500ka electrolytic cells, And achieved good results.

Because the graphite cathode block has good homogeneity, conductivity, heat conduction and sodium corrosion resistance, it can improve the technical indicators of the electrolytic process, prolong the service life of the cell and improve the current efficiency under the premise of normal and stable operation. Therefore, it is favored by aluminum production enterprises. In 2019, China's total output of electrolytic aluminum was 35.04 million tons, a year-on-year decrease of 0.9%. Based on the consumption of 15kg cathode per ton of electrolytic aluminum, 525600 tons / year of cathode carbon block is required to maintain the normal production of electrolytic cells. Therefore, it can be seen that China's Graphite cathode block industry has broad potential development space.

In terms of production, China graphite cathode block products have reached the advanced level in terms of production level and product physical and chemical properties, and some products are better than similar foreign products. At present, the capacity of graphite cathode block in China is about 200000 tons / year.

In terms of the production standards of graphite cathode blocks in China, the relevant foreign standards mainly include the product standards of French Savar, German Erft and other companies. The production standard of large enterprises involves a wide range of products, and provides physical and chemical indicators in different directions of products. It can fully reflect the characteristics and requirements of different grades of products in the series products, and certain advanced qualities are more applicable worldwide.

The standard of graphite cathode block in China has great limitations. Graphite cathode block products are used for electrolytic aluminum production. Driven by the development of electrolytic aluminum industry, the market has great development potential. However, at present, due to the development of substitutes, electrolytic aluminum industry and the characteristics of graphitized cathode carbon block, the current market scale of graphitized cathode carbon block is small, and the industry does not have development potential.