【摘要】 为实现攀枝花地区钛资源的二次利用，以某选钛尾矿为研究对象，开展了系统的工艺矿物学与选矿试验研究。工艺矿物学分析表明，该尾矿中TiO₂品位为4.63%,SiO₂含量为45.57%，属于典型低品位高硅钛铁矿石；钛的赋存形式复杂，其中72.57%以钛铁矿形式存在，嵌布粒度微细（主要集中在0.02～0.36 mm），另有22.25%的钛以类质同象形式赋存于硅酸盐矿物中，增加了回收难度。选矿试验结果表明，在磨矿细度为-0.074 mm占比72%的条件下，采用单一强磁选、摇床重选或螺旋溜槽均难以实现钛铁矿的有效富集。最终采用强磁选-摇床重选联合工艺，获得了TiO₂品位为15.32%、回收率为53.44%的预富集精矿，为同类复杂尾矿中钛资源的综合利用提供了可行的技术途径。更多还原

【Abstract】 To achieve the secondary utilization of titanium resources in the Panzhihua area, systematic process mineralogy and mineral processing test studies were conducted on the titanium separation tailings. The process mineralogy analysis indicates that the tailings have a TiO₂ grade of 4.63% and an SiO₂ content of 45.57%, classifying them as typical low-grade, high-silica titanium-bearing iron ore. The occurrence form of titanium is complex, with 72.57% existing as ilmenite, which is finely disseminated（mainly in the range of 0.02-0.36 mm）. An additional 22.25% of titanium occurs in silicate minerals in an isomorphic form, increasing the difficulty of recovery. The mineral processing test results show that under the condition of a grinding fineness of 72% passing-0.074 mm, it is difficult to achieve effective concentration of ilmenite using single methods such as high-intensity magnetic separation, shaking table gravity separation, or spiral chute gravity separation. Ultimately, a combined process of high-intensity magnetic separation and shaking table gravity separation was adopted, successfully obtaining a preconcentrate with a TiO₂ grade of 15.32% and a recovery of 53.44%. This provides a feasible technical pathway for the comprehensive utilization of titanium resources in similar complex tailings.更多还原