A STUDY ON THE MANUFACTURING SI-AL-BA-FE ALLOY DIRECTLY FROM COAL FLY-ASH BY ELECTRO-THERMAL METHOD

摘要

An experiment of manufacturing Si-Al-Ba-Fe Alloy from Coal Fly-Ash by Electro-thermal Method was introduced. The raw material is powder coal ash. The average components of thernfinal obtained product in this experiment are: Si 34.93%. Al 23.90%, Ba 7.18%, Fern27.08%, Ca 1.7%, C 0.7%, P 0.066, S 0.029%. This kind of Si-AI-Ba-Fe alloy can be used as a deoxidizer in order to reduce the metal aluminum consumption in steel-making industry. This is a viable method to make full and integrated use of powder coal ash. This method has economy benefit, environmental benefit and social effectiveness. It is worth being studied and applied further.