川西九龙地区低品位锂辉石浮选试验研究

Flotation Test of Low-grade Spodumene in the Jiulong Area of West Sichuan

锂被广泛应用于高能电池、陶瓷玻璃、医疗、航空航天等领域,川西地区锂辉石是重要的锂原料基地,川西九龙地区锂辉石具有找矿潜力大、原矿品位低、综合利用难度大等特点。川西九龙某低品位锂辉石矿Li2O品位为0.94%,主要有用矿物为锂辉石,脉石矿物以长石、石英为主,精矿理论品位为6.42%,理论回收率为83.99%。在磨矿细度为-0.075 mm含量84.04%的条件下,采用一次粗选、两次扫选、四次精选、中矿顺序返回的浮选闭路流程,获得了Li2O品位5.52%,回收率76.18%的锂精矿,试验结果为九龙地区低品位锂辉石的开发利用提供了参考。

Lithium is widely used in high-energy batteries, ceramic glass, medical treatment, aerospace and other fields. Spodumene in Western Sichuan is an important lithium raw material base. Spodumene in Jiulong area of Western Sichuan has the characteristics of great prospecting potential, low grade of raw ore and difficult comprehensive utilization. The Li2O grade of low grade spodumene ore of Jiulong area of West Sichuan is 0.94%. The main valuable mineral is spodumene, and gangue minerals are feldspar and quartz. The theoretical grade of spodumene concentrate is 6.42%, and the theoretical recovery is 83.99%. At the condition of grinding fineness of -0.075mm 84.04%, the lithium concentrate of 5.52% U2O is obtained with the recovery of 76.18% through the closed circuit of one-roughing, two-scavenging, four-cleaning and middlings returned in order. The test results provide reference for the development and utilization of Low Grade spodumene in the Jiulong area of West Sichuan.