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金属矿山 ›› 2019, Vol. 48 ›› Issue (07): 85-91.

• 矿物工程 • 上一篇    下一篇

甘肃某复杂多金属硫化矿石中铜与铅锌的浮选分离试验

袁勤智1,邱廷省1,2,王梦雨1   

  1. 1. 江西理工大学资源与环境工程学院,江西 赣州 341000;2. 江西省矿业工程重点实验室,江西 赣州 341000
  • 出版日期:2019-07-15 发布日期:2019-09-17
  • 基金资助:

    基金项目:国家自然科学基金资助项目(编号:51474114);江西省自然科学基金资助项目(编号:20122BAB216021);江西省科技支撑计划项目(编号:20121BBG70005)。

Flotation Separation Tests of Copper and Lead-Zinc in a Complex Polymetallic Sulfide Ores in Gansu Province

Yuan Qinzhi1,Qiu Tingsheng1,2,Wang Mengyu1   

  1. 1. School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000,China;2. Jiangxi Key Laboratory of Mining Engineering, Ganzhou 341000,China
  • Online:2019-07-15 Published:2019-09-17

摘要: 甘肃某铜铅锌多金属硫化矿石Cu、Pb、Zn、Au、Ag、S品位分别为0.75%、2.50%、5.30%、2.80 g/t、120 g/t、14.20%,均具有回收价值,前期在铜与铅锌的有效分离研究方面一直未取得突破。为了在不影响其他元素分离回收的情况下实现铜与铅锌的有效分离,进行了以铜与铅锌有效分离为核心的试验研究。结果表明,试验采用以全混合浮选—混合精矿脱硫—铜与铅锌分离原则流程为核心的多段磨选流程处理矿石,最终获得了Cu品位为21.42%、Cu回收率为71.69%、含Pb3.61%、含Zn4.28%的铜精矿,以及Pb品位为13.46%、Zn品位为28.52%、含铜1.01%、Pb回收率为93.04%、Zn回收率为92.98%的铅锌混合精矿;实现铜与铅锌有效分离的关键在于有铅锌抑制剂硫化钠+亚硫酸+FY组合配合细磨深选流程。

关键词: 多金属硫化矿, 混合浮选, 分离

Abstract: The Cu, Pb, Zn, Au, Ag, and S grades of a copper-lead-zinc polymetallic sulfide ores in Gansu are 0.75%, 2.50%, 5.30%, 2.80 g/t, 120 g/t, and 14.20%, respectively, which are worthy to recycle. However, the effective separation of copper and lead-zinc had not progressed in the early study. In this paper, experimental study of focusing on the effective separation of copper and lead-zinc without affecting the separation and recovery of other elements was carried out. The results showed that the principle process of full mixed flotation-mixed concentrate desulfurization, multi-stage grinding and the separation of copper and lead-zinc was carried out. Cu, Pb, Zn grade and Cu recovery rate in the copper concentrate were 21.42%, 3.61%, 4.28%, 71.69% respectively. Pb, Zn, Cu grade and Pb, Zn recovery rate in the mixed lead-zinc concentrate were 13.46%, 28.52%, 1.01%, 93.04%, and 92.98%, respectively. The key to achieve effective separation of copper and lead-zinc was the combination of lead-zinc inhibitor sodium sulfite + sulfurous acid + FY and the fine-grinding deep-concentrating process.

Key words: Polymetallic sulfide ores, Mixed flotation, Separation