ECA is produced when Anthracite is Electrically Calcined under the high temperature of 1700-2200C in vertical shaft furnaces to obtained a devolatized and partially graphitized product. Calcining is controlled to achieve specific resistivity characteristics, generally in the range of 550-750 ohm mm²/m 

Raw materials for ECA are selected carefully from TaiXi Anthracite Coal which is well-known for its low ash, low sulfur content and are processed by floatation before calcining.

ECA is used as an ingredient in the production of cathode blocks for Aluminum Industry, and applied as tap-hole filling in special ferroalloy furnaces. It is also used as recarburizer in the production of steel-making because of its comparable quality and competitive price. In recent years, the consumption of ECA in the field of steel-making goes up rapidly.

H content :  ranging from 0.03% to 0.10% tested by different labs.
Size: 1-10mm 90% minimum or at buyer's option

TYPICAL SPECIFICATIONS FOR ALUMINUM INDUSTRY