川西某锂多金属矿梯级回收试验研究

Experimental Study on Cascade Recovery of Lithium Polymetallic Deposit in Western Sichuan

针对四川某锂多金属矿矿石风化严重、有用矿物种类多、嵌布复杂、分选困难的问题,在沉降脱泥的基础上,通过新型高效组合捕收剂WB-05以及"浮-磁-重"联合新工艺的研发,实现了梯级回收其中的锂辉石、铌钽铁矿及长石,最终得到Li_2O品位6.12%、回收率86.01%的锂辉石精矿,Nb_2O_5品位36.5%、Ta_2O_5品位15.13%、Nb_2O_5回收率59.85%、Ta_2O_5回收率60.48%的铌钽精矿以及(Na_2O+K_2O)品位10.51%、回收率72.39%的长石精矿。

On the basis of settlement and dewatering, in view of the lithium polymetallic ore in Sichuan Province, whose problems are serious weathering, to contain many kinds of useful minerals, embedded complex and difficult separation,new high-efficiency combined collector WB-05 and new joint process of floating-magnetic separation-gravity were adopted. They reached the goal of cascade recovery of spodumene, columbite-tantalite and feldspar. Eventually, spodumene concentrate, niobium concentrate, tantalum concentrate and feldspar concentrate （ Na2O＋K2O） were obtained,whose grade are 6. 12% ,36.5%, 15.13% and 10. 51% ,whose recovery are 86.01% ,59.85% 60.48% and 72. 39% ,respectively.