织金含稀土磷矿石反浮选试验研究

根据矿石性质，采用自制的白云石类脉石矿物高效捕收剂AB对织金含稀土磷矿石进行1粗1精反浮选试验，在磨矿细度为-0.075 mm占82.80%、AB用量粗选和精选分别为350 g/t和100 g/t，抑制剂磷酸用量粗选和精选分别为12 kg/t和2 kg/t的条件下，获得了P₂O₅品位为31.20%、P₂O₅回收率为84.62%、RE₂O₃含量为0.133%、RE₂O₃回收率为92.98%、MgO含量为1.07%的磷精矿，为综合性开发该含稀土磷矿石资源提供了经济可行的技术依据。

Reverse Flotation Research on Phosphate Ore Containing Rare Earth from Zhijin

According to the property of the mineral,the phosphate ore containing rare earth from Zhijin,some researches were done by the reverse flotation of one roughing and one cleaning using home made collector AB which is aim at gangue like dolomite.The results show that at these optimal conditions of 82.83%-0.075 mm grinding size,350 g/t and 100 g/t AB as collector each in roughing and cleaning,12 kg/t and 2 kg/t phosphoric aid as depressor each in roughing and cleaning,a phosphorous concentrate with the grade of P2O5 for 31.20%,content of MgO for 1.07%,RE2O3 for 0.133% and recovery rate of P2O5 for 84.62%,RE2O3 for 92.98% can be obtained.It provides a economic and feasible way for comprehensive utilization of this kind of phosphate and its associated rare earth.