The efficient utilization of low-grade scheelite with X-ray transmission sorting and mixed collectors

Nowadays, with the depletion of high-grade scheelite resources, the efficient exploitation of complex, low grade with complicated geological structure scheelite ore have to take into account. This work introduces a feasible mineral processing method for the beneficiation of low grade and complex scheelite using the X-ray transmission (XRT) pre-concentration technology and mixed collectors. The results of XRT sorting shown that 94.85% WO 3 can be recovered with the discarding rate reached 40.62%. The closed-circuit flotation of actual ore using mixed collector obtained scheelite concentrate of 61.09% WO 3 grade with WO 3 recovery of 89.49%. The combined flowsheet of XRT sorting and mixed collector brought about RMB 4.5 million yuan profit per year for the mine company.