Summarize

Needle coke is the main raw material for manufacturing high-end graphite electrodes. According to the different raw materials, it is divided into oil and coal. The needle coke produced with petroleum heavy oil as raw material is the oil series, and the needle coke produced with coal tar pitch and its fractions is the coal series. The two kinds of needle coke have different production processes, but their uses are basically the same. From the outside, there is a clear streak, the gap inside the focus block is uniform, and it is a slender oval, and the coke fragments become needle-like when they collide. Needle coke dense as fiber, also known as high-quality coke, in nature and sponge coke has a clear difference, with high density, high strength, low thermal expansion coefficient of characteristics, in thermal conductivity, electricity, magnetic, light and other aspects of the obvious anisotropy.

Development course

China began to introduce needle coke technology in the 1970s and 1980s, and gradually broke the monopoly of the United States and Japan after entering the 21st century. With the continuous growth of domestic needle coke production capacity and the continuous improvement of product quality, the dependence on imports gradually declined. Since 2021, due to a substantial increase in negative demand, increased demand for raw materials, the price of needle coke has risen steadily, and the industry operating rate has gradually recovered.

There are four main technologies for the production of coal measure needle coke: vacuum distillation, solvent extraction, M-L and flash condensation. From the perspective of the domestic market, the main brands mainly include Japan, the United States and many domestic enterprises, Mitsubishi Chemical, Nippon Steel, KOA, Conoco and so on occupy a certain share in the domestic market, China's needle coke at this stage of the leading enterprises are: Liaoning Bora, Shandong Yida, Shandong Jingyang, Jinzhou Petrochemical, Shanxi Hongte, Taiyuan Shenghong and so on. China began to introduce needle coke technology in the 1970s and 1980s, and gradually broke the monopoly of the United States and Japan after entering the 21st century. With the continuous growth of domestic needle coke production capacity and the continuous improvement of product quality, the dependence on imports gradually declined. Since 2021, due to a substantial increase in negative demand, increased demand for raw materials, the price of needle coke has risen steadily, and the industry operating rate has gradually recovered.

There are four main technologies for the production of coal measure needle coke: vacuum distillation, solvent extraction, M-L and flash condensation. From the perspective of the domestic market, the main brands mainly include Japan, the United States and many domestic enterprises, Mitsubishi Chemical, Nippon Steel, KOA, Conoco and so on occupy a certain share in the domestic market, China's needle coke at this stage of the leading enterprises are: Liaoning Bora, Shandong Yida, Shandong Jingyang, Jinzhou Petrochemical, Shanxi Hongte, Taiyuan Shenghong and so on.

Specification