Experimental research on the flotation of a pegmatite type spodumene ore in Western Sichuan

The main target mineral of a pegmatite type lithium polymetallic ore in western Sichuan is spodumene, accompanied by a small amount of niobium-tantalite. Gangue minerals mainly include feldspar, quartz and mica minerals. Under the condition of grinding fineness -0.074mm 72%, the concentrate products with Li2O grade 5.80%, Nb2O5 content 530g/t, Ta2O5 content 215g/t, Li2O recovery rate 91.76%, Nb2O5 recovery rate 91.05%, Ta2O5 recovery rate 90.83% can be obtained by the closed flotation circuit of one-roughing, one-scavenging, three-cleaning. The mixed flotation of spodumene and niobium-tantalite was realized.