1 coke is used to reduce iron ore, which is produced by pressure, air isolation and high temperature dry distillation. Meanwhile, gas and coal tar are important chemical products.

Carbon black is produced because of the combustion of carbon and carbon compounds (mainly hydrocarbons). Due to insufficient combustion, carbon can not be converted into carbon dioxide, and then into carbon monoxide, so it becomes small carbon particles, which is carbon black; Carbon black can be used as a filler in rubber mixture, preferably in tires.

The first use of carbon black in plastic industry is coloring. Carbon black is a cheap and fine black pigment. The second use of carbon black in plastics industry is its good ultraviolet absorption, and its application in plastics shows quite obvious protective effect. The third use of carbon black in the plastic industry is to conduct electricity.