某锂云母粗精矿磁选再富集试验研究  

Experimental Study on Magnetic Separation and Re-enrichment of a Lepidolite Rough Concentrate

作　　者：邹伟民 梅晓方 邱振忠 梁毅宏 罗志勇 陈笑星 李宇宏 ZOU Weimin;MEI Xiaofang;QIU Zhenzhong;LIANG Yihong;LUO Zhiyong;CHEN Xiaoxing;LI Yuhong(Jiangxi Yongxing New Energy Technology Co.,Ltd.;SLon Magnetic Separator Co.,Ltd.)

机构地区：[1]江西永兴新能源科技有限公司,江西省宜春市336300 [2]赣州金环磁选科技装备股份有限公司,江西省赣州市341000

出　　处：《现代矿业》2024年第2期176-178,共3页Modern Mining

摘　　要：江西某锂云母经浮选后粗精矿锂品位2.60%左右,产品竞争力较弱。为提高该锂云母精矿的市场竞争力,达到锂品位3.0%以上的要求,进行锂云母粗精矿磁选再富集试验。研究结果表明:在磨矿细度-0.074 mm65%、给矿浓度25%、磁介质棒直径3 mm、强磁粗选1背景磁感应强度1.3T、强磁粗选2背景磁感应强度1.5 T的条件下,采用2次强磁粗选工艺流程,可获得锂品位3.03%、锂回收率82.03%的锂云母强磁选精矿;试验达到了对现场浮选精矿再富集的效果,可作为现场工艺改造的依据。The rough concentrate lithium grade of a lithium mica in Jiangxi is about 2.60%after flota-tion,and the product competitiveness is weak.In order to improve the market competitiveness of the lepido-lite concentrate and achieve the requirements of more than 3.0%lithium grade,the magnetic separation and re-enrichment test of lepidolite rough concentrate was carried out.The results show that under the condi-tions of grinding fineness of-0.074 mm 65%,feed concentration of 25%,magnetic medium rod diameter of 3 mm,background magnetic induction intensity of 1.3 T in high intensity magnetic roughing 1 and back-ground magnetic induction intensity of 1.5 T in high intensity magnetic roughing 2,lepidolite concentrate with lithium grade of 3.03%and lithium recovery of 82.03%can be obtained by two times of high intensity magnetic roughing process.The test has achieved the effect of re-enrichment of on-site flotation concen-trate,which can be used as the basis for on-site process transformation.

关 键 词：锂云母 高梯度磁选 再富集 

分 类 号：TD955[矿业工程—选矿] TD924