Influence of Cr_2O_3 Content on Phase of Chromium-Containing High-Titanium Blast Furnace Slag

摘要

The presence of high content of Cr_2O_3 introduces a major impact on the smelting reduction and slagging processes in the blast furnace process. Therefore, the effect of Cr_2O_3 content on the phase of chromium-containing high-titanium blast furnace slag has been investigated in this work via XRD. The results show that when the added amount of Cr_2O_3 was a minimum of 1.5 wt.%, perovskite and spinel phases were formed in slag, resulting in increased viscosity. For good fluidity and thermal stability of blast furnace slag, the content of Cr_2O_3 in blast furnace slag should not exceed 0.5 wt.%.