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针对云南某锡尾矿中锡石嵌布粒度细、矿泥含量高、直接浮选效果差的问题，开展了离心重选—浮选联合工艺回收锡的试验研究。结果表明，采用离心重选可有效脱除53.98%的矿泥（Sn品位0.065%），显著改善了后续浮选效果。经浮选可获得品位3.121%、回收率42.85%的锡精矿，富集比高达20.31。相较于直接浮选和摇床重选—浮选工艺，离心重选—浮选联合工艺在脱泥效率、锡回收率和富集比等方面均表现出明显优势，为该类难选锡尾矿的高效回收提供了可行的技术方案。
Abstract：To address the challenges of fine cassiterite dissemination, high slime content, and poor direct flotation performance in Yunnan tin tailings, experimental studies were conducted using a combined centrifugal gravity-flotation process for tin recovery. The results demonstrate that centrifugal gravity separation effectively removed 53.98% of slime(with Sn grade of 0.065%), significantly improving subsequent flotation performance.Through flotation, a tin concentrate with grade of 3.121% and recovery rate of 42.85% was obtained, achieving a high enrichment ratio of 20.31. Compared with direct flotation and shaking table-flotation processes, the combined centrifugal gravity-flotation process shows distinct advantages in slime removal efficiency, tin recovery rate, and enrichment ratio, providing a viable technical solution for efficient recovery of such refractory tin tailings.
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基本信息:
DOI：
中图分类号:TD926.4
引用信息:
[1]陈杰江,谢贤,王翔等.离心重选—浮选联合工艺回收细粒锡尾矿中的锡[J].矿冶,2025,34(03):400-404.
基金信息:
云南省重大科技项目(202202AG050010)