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现代矿业 ›› 2024, Vol. 40 ›› Issue (02): 176-178.
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 1.3
T、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 about2.60% 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.
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