Graphite electrode refers to a high-temperature graphite conductive material made of petroleum coke and asphalt coke as aggregate and coal pitch as binder, through raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing, which is called artificial graphite electrode, referred to as graphite electrode.
A small amount of asphalt coke can be added to the ordinary power graphite electrode, and the sulfur content of petroleum coke and asphalt coke should not exceed 0.5%. Needle coke is also required for the production of high-power or ultra-high-power graphite electrodes. The main raw material for the production of aluminum anode is petroleum coke, and the sulfur content is not more than 1.5%~2%.