关键词: 织金含稀土磷矿石, 自制高效捕收剂AB, 反浮选

Abstract: 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.

Key words: Phosphate ore containing rare earth from Zhijin, Home made efficient collector AB, Reverse flotation