A METHOD OF IMPROVING THE QUALITY OF IRON ORE PELLETS USED IN BLAST FURNACE AS SOURCE OF IRON BEARING CHARGE BY ADDING MAGNESIUM SILICATE MINERAL,

摘要

A method for improving the quality of iron ore pellets without adding CaO bearing fluxes comprising the steps of: Grinding the ore fines into a size of 60-80% less than 45 micron; Mixing the ore fines with an effective amount of pyroxenite (magnesium silicate) mineral in the range of 0.5 to 10% with respect to the weight of the mix and adequate amount of binder and water (2-8%); Subjecting the mixture to the step of palletizing/briquetting to form green pellets/briquettes; Firing the green pellets in the temperature range of 1280-1320°C[IN-KOL-2010-00695A]