STUDY ON EROSION PROCESS OF VANADIUM-TITANIUM BEARING SLAG WITH HIGH ALKALI CONTENT ON BLAST FURANCE LINING

The variation of refractory materials’ structure and composition after eroded by vanadium-titanium bearing slag with high alkali content was analyzed on the basis of laboratory erosion experiments. The results show that alumina-carbon brick is of outstanding alkaline attack resistance, the attacking rate of clay brick and alumina brick is increased when the vanadium-titanium bearing slag contain alkali, the alkaline attack resistance of corundum-mullite brick is poor. Densifying the structure of refractory material which is attacked easily by alkali and is of high reactivity is a improvement goal for further research.