Study on Direct Reduction of Carbon-containing Pellet Made of Vanadium-bearing Titaniferous Magnetite

On the basis of RHF technology,high-temperature calcination experiments were carried out in the laboratory to directly reduce carbon-containing pellet made of vanadium bearing titaniferous magnetite.Through XRD analysis,the effects of carbon proportion（w_C/w_O）,reduction temperature and reduction time on metallization rate of pellet and content of carbon residue are discussed in this paper.The results show that: with the increase in reduction temperature,the metallization rate constantly increases while content of carbon residue decreases,and as the temperature rises,the metallization rate increases rapidly before 1 350 ℃ and reaches 90% or above at 1 350 ℃,and then levels off;with the increase in reduction time,the metallization rate of pellet firstly increases and then decreases and the carbon residue is gradually reduced,and when the reduction time is at 30 min,the metallization rate reaches the maximum（91.37%）;with the increase in carbon proportion（w_C/w_O）,the reduction of pellet is accelerated and metallization rate is improved,and when w_C/w_O is at 1.3,it reaches the maximum（94.28%）.