北方某低品位铁磷矿综合回收选矿试验

Northern low-grade iron phosphate ore beneficiation test of comprehensive recycling

根据北方某低品位铁磷矿中铁、磷、钛的赋存状态,采用重选、强磁选或重选—强磁选的联合流程进行综合回收利用试验研究.试验结果表明:先浮选后磁选流程可取得了较好的选矿指标,铁精矿TFe品位66.12%、回收率TFe 23.20%(磁性铁回收率93.98%),磷精矿P2O5品位38.65%、回收率96.23%,钛铁精矿TiO2品位44.62%、回收率44.62%.

According to the condition of a north low-grade iron phosphorus ore in hard,the phosphorus,the titanium tax saves,the authors use the gravity separation,the strong magnetic separation or the gravity separation-strong magnetic separation union flow conducts the synthesis recycling experimental study.Test result shows： After first flotation process,the magnetic separation flow might obtain the good dressing target,hard ore concentrate TFe quality score 66.12%,returns-ratio TFe 23.20%（magnetic hard returns-ratio 93.98%）,phosphorus ore concentrate P2O5 quality score 38.65%,returns-ratios 96.23%,ferrotitanium ore concentrate TiO2 quality score 44.62%,returns-ratios 44.62%.