What is a graphite electrode?

Graphite electrode refers to a high-temperature resistant graphite conductive material made from petroleum coke and asphalt coke as aggregates, coal tar pitch as binder, through raw material calcination, crushing and grinding, batching, kneading, shaping, calcination, impregnation, graphitization, and mechanical processing. It is called artificial graphite electrode (referred to as graphite electrode), which is different from natural graphite electrodes prepared from natural graphite.

The main raw material for the production of graphite electrodes is petroleum coke. A small amount of asphalt coke can be added to ordinary power graphite electrodes, and the sulfur content of petroleum coke and asphalt coke cannot exceed 0.5%. When producing high-power or ultra-high power graphite electrodes, needle coke is also required. The main raw material for aluminum anode production is petroleum coke, and the sulfur content should not exceed 1.5% to 2%. Petroleum coke and asphalt coke should comply with relevant national quality standards.