Electrical Calcined Anthracite(ECA) is produced under the temperature of 1240 ℃ in vertical shaft furnaces, mainly used in electric steel ovens, water filtering, rust removal in shipbuilding and production of carbon material. 

anthracite as raw materials through high temperature calcined at 800-1200 ℃ by the DC electric calciner with results in eliminating the moisture and volatile matter from Anthracite efficiently, improving the density and the electric conductivity and strengthening the mechanical strength and anti-oxidation, It has good characteristics with low ash, low resistivity, low carbon and high density. It is the best material for high quality carbon products, it is used as carbon additive in steel industry or fuel.