攀西细粒级钛铁矿高效回收工艺研究

针对攀西地区追求钒钛铁精矿品质造成选铁尾矿变细,高梯度强磁机难以同时兼顾细粒级钛铁矿品位和回收率的问题,采用高梯度强磁机与悬振锥面选矿机作为浮选原料富集设备,并与浮选组成联合选别工艺进行实验室对比研究。试验表明:设置有悬振作业的浮选原料中干扰浮选的-19μm矿泥含量低于单一强磁作业,且"悬振+浮选"联合流程对TiO_2品位10.57%的细粒级钛铁矿回收效果最优,能获得产率13.29%、TiO_2品位47.20%、TiO_2回收率60.00%的合格钛精矿。

Study on Efficient Recovery Process of Fine Grained Ilmenite in Panxi Area

According to the problem that the grade and recovery rate of fine grained ilmenite in Panxi area cannot be satisfied simultaneously by high gradient strong magnetic separator,a separation process combined with flotation using the suspension-vibration conical concentrator and high gradient strong magnetic separator as the enrichment equipment for flotation raw material was carried out in laboratory.The results show that the content of-19 μm slime,which interferes the flotation,in the flotation raw materials by the process with suspension-vibration is lower than that of the materials by process with singular magnetic separation.The combined process of suspension-vibration and flotation has an optimum recovery of fine grained ilmenite containing 10.57％ TiO2,which can obtain qualified titanium concentrate containing 47.20％ TiO2,with 13.29％ of yield rate and 60％ of recovery rate for TiO2,respectively.