大红柳滩某低品位锂铍矿石表面清洗浮选工艺研究  

Study on surface cleaning flotation process of a low grade lithium-beryllium ore in Dahongliutan region

作　　者：张迎棋 ZHANG Yingqi(Xinjiang Nonferrous Metal Industry(Group)Co.Ltd.,Urumchi 830000,China)

机构地区：[1]新疆有色金属工业(集团)有限公司,乌鲁木齐830000

出　　处：《矿冶》2023年第4期46-54,共9页Mining And Metallurgy

基　　金：国家重点研发计划项目(2021YFC2903202)。

摘　　要：以大红柳滩某锂铍多金属矿为研究对象,研究了N甲基9十七烯酰胺基乙磺酸钠和N-甲基脂肪酰胺基乙酸盐作清洗剂时,矿物表面清洗浮选对锂铍矿物可浮性及锂铍分离效果的影响,并对矿物表面清洗浮选的试验条件进行了优化。闭路试验的结果表明,在磨矿细度-0.074 mm含量占72%的条件下,清洗浮选可以获得锂精矿Li_(2) O品位为6.01%、Li_(2) O回收率为87.60%;铍精矿BeO品位6.57%、BeO回收率62.90%的良好指标。其中,锂精矿中BeO品位为0.049%、BeO回收率为31.20%,较好地实现了锂铍分离。In this paper,a lithium-beryllium polymetallic ore in Dahongliutan region was taken as the research object.The effects of mineral surface cleaning flotation on the floatability of lithium-beryllium minerals and the separation effect of lithium-beryllium minerals were studied when N-methyl-9-heptadecene amide sodium sulfonate and N-methyl fatty amide acetate were used as cleaning agents.The experimental conditions of mineral surface cleaning flotation were optimized in this study.The results of closed-circuit test show that under the grinding fineness of-0.074 mm accounting for 72%,the lithium concentrate with Li_(2) O grade of 6.01%and Li_(2) O recovery of 87.60%,and the beryllium concentrate with BeO grade of 6.57%and BeO recovery of 62.90%can be obtained.At the same time,the grade of BeO in the lithium concentrate is 0.049%while the recovery of BeO is 31.20%,which means lithium-beryllium separation can be achieved by the cleaning flotation process.

关 键 词：锂辉石 绿柱石 锂铍分离 表面清洗 浮选 

分 类 号：TD923[矿业工程—选矿]