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现代矿业 ›› 2025, Vol. 41 ›› Issue (05): 111-116.

• 矿物加工工程 • 上一篇    下一篇

微细粒白云鄂博尾矿浮选回收萤石试验

张文迪1,2,3 赵瑞超1,2,3 贾 艳2,3 辛文彬4 贺宇龙1,2,3 汪文清1,2,3   

  1. 1. 内蒙古科技大学矿业与煤炭学院;2. 白云鄂博共伴生矿废弃物资源综合利用国家地方联合工程 研究中心;3. 内蒙古自治区稀土二次资源可持续利用工程技术研究中心;4. 内蒙古科技大学稀土产 业学院(稀土工程技术学院)
  • 出版日期:2025-05-25 发布日期:2025-07-30

Experiment on Flotation Recovery of Fluorite from Fine Grained Bayan Obo Tailings

  1. 1. College of Mining and Coal,Inner Mongolia University of Science and Technology; 2. National and Local Joint Engineering Research Center for Comprehensive Utilization of Associated Mineral Waste Resources in Bayan Obo;3. Inner Mongolia Autonomous Region Rare Earth Secondary Resources Sustainable Utilization Engineering Technology Research Center;4. College of Rare Earth Industry(College of Rare Earth Engineering Technology),Inner Mongolia University of Science and Technology)
  • Online:2025-05-25 Published:2025-07-30

摘要: 为高效利用白云鄂博尾矿潜在萤石资源,针对尾矿粒度细、综合回收萤石试验流程复 杂、萤石回收效率低等难题,以白云鄂博主东矿尾矿经永磁—电磁—超导工艺处理后的超导尾矿为 原料,进行了尾矿综合回收萤石选矿工艺试验。试验结果表明:以2# 药剂作为调整剂,酸化水玻璃为 抑制剂,油酸钠为捕收剂,采用两段联合浮选工艺,一段浮选采用1粗3精浮选流程,二段浮选对一段 浮选精矿进行 1粗 1精再次提纯,最终可获得 CaF2品位 90.82%、CaF2回收率 30.14% 的高品位萤石精 矿,为后续从微细粒白云鄂博尾矿中综合回收萤石提供了理论指导。

关键词: 微细粒, 萤石, 白云鄂博尾矿, 浮选

Abstract: In order to efficiently utilize the potential fluorite resources of Bayan Obo tailings,aiming at the problems of fine particle size of tailings,complex test process of comprehensive recovery of fluorite and low recovery efficiency of fluorite,the superconducting tailings treated by permanent magnet-electro⁃ magnetic-superconducting process of Bayan Obo main east mine tailings were used as raw materials to car⁃ ry out the beneficiation process test of comprehensive recovery of fluorite from tailings. The test results show that the two-stage combined flotation process is adopted with 2# as the regulator,acidified sodium silicate as the inhibitor and sodium oleate as the collector. The first stage flotation adopts one roughing and three cleaning flotation process,and the second stage flotation is the re-purification of the first stage flota⁃ tion concentrate by one roughing and one cleaning. Finally,high-grade fluorite concentrates with CaF2 grade of 90.82% and CaF2 recovery of 30.14% can be obtained,which provides theoretical guidance for the subsequent comprehensive recovery of fluorite from fine-grained Bayan Obo tailings.

Key words: micro-fine particle, fluorite, Bayan Obo tailings, flotation