钒钛磁铁矿转底炉直接还原综合利用前景

Prospect of Comprehensive Utilization of V-Bearing Titanomagnetite by Rotary Hearth Furnace Process

攀枝花钒钛磁铁矿使用传统工艺流程冶炼,钛资源的回收只有7%,浪费巨大。如果采用被业内称之为“第三代炼铁法”(简称Itmk3)的转底炉煤基直接还原工艺进行综合回收,除得到用于生产优质钢的电炉炼钢原料——直接还原铁(DRI)外,更能得到TiO2含量达50%以上的钛渣。这将大幅度提高钒钛磁铁矿钛资源的回收率,缓解我国钛资源紧张状况,为钛资源综合利用提供了一个可行的途径。

Panzhihua v-bearing titanomagnetite has a titanium recovery of only 7% when smelted by traditional process, an enormous waste of titanium resource. If it is treated by rotary hearth furnace （RHF） coal-based direct reduction process, Itmk3 process, which is called by the in-siders as “a third generation iron-making method”, except direct reduction iron （DRI） which can be used to produce fine quality steel by electric arc furnace, a titanium slag containing over 50% TiO2 can also be obtained, which will greatly raise the recovery of v-bearing titanomagnetite resource so as to relax the tension of Chinag titanium resource by providing a feasible way to comprehensively utilize titanium resource.