【摘要】 以江西宜春某锂云母浮选尾矿为研究对象，在工艺矿物学基础上，对比了磁选、重选及其不同组合工艺对钽铌锡回收效果的影响。结果表明，采用磁选-重选联合工艺和分步重选工艺，尽管得到的钽铌锡混合精矿品位较高，但回收率均较低；采用分级-螺旋溜槽重选-摇床重选的分级分段重选流程，可获得Ta₂O₅品位5.57%、Nb₂O₅品位7.56%、SnO₂品位45.63%,回收率Ta₂O₅ 41.66%、Nb₂O₅ 42.28%、SnO₂ 31.07%的钽铌锡混合精矿。更多还原

【Abstract】 With the lepidolite flotation tailings from Yichun of Jiangxi Province taken for search, effects of different combined processing techniques of magnetic separation and gravity separation on recoveries of tantalum, niobium and tin were compared based on its process mineralogy. It is found that the processing technique of magnetic separation combined with gravity separation, and stepwise gravity separation can lead to a Ta-Nb-Sn concentrate with higher grades but lower recoveries; while a combined process consisting of classification, gravity separation with spiral chute and then with a shaking table can produce a Ta-Nb-Sn concentrate with grades including 5.57% Ta₂O₅, 7.56% Nb₂O₅ and 45.63% SnO₂, at corresponding recoveries of 41.66%, 42.28% and 31.07%.更多还原