Abstract：The influence of adding LiCl catalyst on hydrogen selective-reduction of Baiyun-obo Nb-bearing iron ore powder was studied by experiment in the homemade diffusion bed tubular resistance furnace that gas blown from the bottom. It was found that adding LiCl catalyst could promote the reduction reaction; both the reduction degree and metallization rate improved significantly. Almost all of the iron oxide was reduced to metallic iron. The catalyst addition rate was changed to 2.14%,1.71%,1.43%,1.00%,0.71%and 0.43% （mass fraction）.The results show that the catalytic effect was the best when wLiCl=0.71% catalyst was added to 70g Nb-bearing iron ore powder, with the relatively lower impurity content. The reduction degree could reach 95.82%, and the metal rate could reach 93.73%.
2015, Vol. 25 
