| 摘要 |
<p>The present invention relates to refractory composition for construction of a dome portion of a fluidized bed reduction furnace for reduction of iron ore powder in a FINEX process which is a new iron production method, to provide castable refractory having properties of corrosion resistance so as to be chemically stable in a reductive gas environment, thermal impact resistance, and mechanical strength. For this, the refractory composition includes 1.5 ~ 2.5wt% of silica SiO2, below 0.05wt% of Fe2O3, 8 ~ 11wt% of CaO, and balance of alumina Al2O3, to make up 100wt% of the refractory composition.</p> |
