A PROCESS FOR PRODUCTION OF FERROSILICON FROM BANDED HEMATITE, JASPER ORE

摘要

A process for the production of ferrosilicon from lean ore comprising the steps of: grinding the lean ores, low reactive coal, quartzite and pet coke to the size ranging between 10-30 mm; mixing the said ores, lower active coal quartzite and pet coke in a ratio ranging between 1:1.13:0.63:0 to 1:0:0.97:1.23; introducing the said mixture in a submerged arc furnace having the temperature in the range of 1700 to 1900°C for a period of 3-4 hrs; tapping the materials into the metal moulds.