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昆明冶金高等专科学校学报 ›› 2025, Vol. 41 ›› Issue (1): 16-.DOI: 10. 3969/j. issn. 1009 - 0479. 2025. 01. 003

• 资源开发与测绘 • 上一篇    下一篇

某尾矿的选钨实验研究

  

  1. 昆明冶金高等专科学校冶金与矿业学院,云南 昆明 650033
  • 收稿日期:2024-05-15 出版日期:2025-02-07 发布日期:2025-09-26
  • 作者简介:杨志鸿(1984-),男,陕西汉中人,副教授,工学硕士,主要从事有色金属冶金与冶金新材料制备研究。

Experimental Study on Tungsten Extraction from Tailings

  1. Faculty of Metallurgy and Mining Engineering, Kunming Metallurgy College, Kunming 650033, China
  • Received:2024-05-15 Online:2025-02-07 Published:2025-09-26

摘要: 某选金矿尾矿WO3 的质量分数为0.34%,且主要以白钨矿形式存在。实验探索了常规选矿方法对该矿 物的选别效果,采用浸出方法可得到WOs 质量分数为1.37%、回收率51.84%的钨精矿;采用浮选方法可得 WO3 质量分数 1.75%、回收率66.26%的钱精矿;采用重选方法可得 WO3 质量分数1.33%、回收率 46.07% 的 钨精矿。实验对比发现,浸出、浮选、重选对该矿物的选别效果相当,从成本、环保等方面综合考虑,最终选 择采用重选方法对该矿物中的物资源进行初步富集。通过重选全工艺闭路实验最终获得质量分数为 WO31.36%、 回收率46.40% 的钨精矿,品位提高到原来的4倍,初步实现了对该矿物中的资源的密集,对类似资源的有效 利用具有一定的参考意义。

关键词: font-family:", background-color:#FFFFFF, ">白钨矿, 浸出, 浮选, 重选

Abstract: The WO3 grade in the tailings of a selected gold mine is 0. 34% , with the mineral primarily existing in the form of scheelite. The effectiveness of conventional beneficiation methods for this mineral was investigated. A tungsten concentrate with a WO3 grade of 1. 37% and a recovery rate of 51. 84% was obtained using the leaching method. Flotation resulted in a tungsten concentrate with a WO3 grade of 1. 75% and a recovery rate of 66. 26%. Gravity separation yielded a tungsten concentrate with a WO3 grade of 1. 33% and a recovery rate of 46. 07% . The results showed that leaching, flotation, and gravity separation methods had similar efficacy in separating the mineral components. Considering factors such as cost-effectiveness and environmental impact, gravity separation was ultimately selected for the preliminary enrichment of tungsten resources in the mineral. Through closed-circuit experiments encompassing the en- tire gravity separation process, a tungsten concentrate with a WO3 grade of 1. 36% and a recovery rate of 46. 40% was achieved, resulting in approximately four times the initial grade. This demonstrates a prom- ising approach for the effective utilization of similar resources.

Key words: font-family:", background-color:#FFFFFF, ">scheelite, leaching, flotation, gravity separation

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