Experimental Study of Fe Removal from TiC-containing Slag

The TiC-containing slag,which is produced by carbon reduction of BF slag,containes Fe 1.7% ～ 3.2%.In this paper,the removal of Fe from TiC-containing slag was studied by means of SEM analysis and experimental study.The results of SEM analysis indicated that the particle size of Fe in the TiC-containing slag was large,up to 150 μm,and a small amount of TiC was adhered to the edge of Fe particle.Furthermore,for different sizes of fine and coarse TiC-containing slag,the experiments of magnetic separation and removal of Fe by wet and dry methods were carried out respectively.The results showed that for the fine TiC-containing slag,although the effect of removing Fe by wet method was better than that by dry method,the removal rate of Fe in slag was only 54%.And for the coarse TiC-containing slag,it could be separated effectively by magnetic separation.Under the magnetic strength of 0.06 T,the removal rate of Fe could reach more than 99%,and the recovery of TiC was 86.2%.