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金属矿山 ›› 2014, Vol. 43 ›› Issue (11): 62-66.

• 矿物工程 • 上一篇    下一篇

豫西某高硫低铜铁矿石铜硫回收试验

吕良1,2,马驰1,2,郭珍旭1,2,岳铁兵1,2,李文军1,2,刘磊1,2   

  1. 1.中国地质科学院郑州矿产综合利用研究所,河南 郑州 450006;2.国土资源部多金属矿评价与综合利用重点实验室,河南 郑州 450006
  • 出版日期:2014-11-15 发布日期:2015-05-21
  • 基金资助:

    * 中国地质调查局地质调查工作项目(编号:12120113088600)。

Recovery of Copper and Sulphur from High-sulphur and Low-copper Iron Ore in Western Henan

Lu Liang1,2,Ma Chi1,2,Guo Zhenxu1,2,Yue Tiebing1,2,Li Wenjun1,2,Liu Lei1,2   

  1. 1.Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Scicences,Zhengzhou 450006,China;2.Key Laboratory of Polymetallic Ores Evaluation and Comprehensive Utilization,Ministry of Land and Resources,Zhengzhou 450006,China
  • Online:2014-11-15 Published:2015-05-21

摘要: 豫西某高硫铜铁矿石铜、硫、铁品位分别为0.33%、9.84%、28.54%,矿石属成分和嵌布关系复杂、嵌布粒度粗细不均、铜铁矿物氧化程度较高的多金属矿石。为确定其开发利用方案,对该矿石进行了选矿试验研究。结果表明,在磨矿细度为-0.074 mm 占85%的情况下,采用1粗3精2扫铜硫混浮、1粗3精3扫铜硫分离、中矿顺序返回流程处理该矿石,可获得铜品位为20.62%、回收率为64.98%的铜精矿,硫品位为43.19%、回收率为91.56%的硫精矿,铜硫回收效果较好;铜硫混浮尾矿铁品位为26.06%、铁回收率为71.33%,硫含量降至0.68%,为后续选铁创造了较好的条件。

关键词: 高硫低铜铁矿石, 黄铜矿, 黄铁矿, 磁铁矿, 磁黄铁矿, 铜硫混浮, 铜硫分离

Abstract: A high-sulfur low-copper iron ore from Western Henan Province contains 0.33% Cu,9.84% S and 28.54% Fe,respectively.It belongs to the polymetallic ore with complex mineral composition and embedded relationship,uneven disseminated particle,and a high oxidation degree of copper and iron.Beneficiation study was carried out for determining the development and utilization program.The results showed that at the grinding fineness of -0.074 mm 85%,copper concentrate containing 20.62% Cu with a recovery of 64.98% and the sulphur concentrate containing 43.19% S with a recovery of 91.56% were obtained respectively by the process of copper and sulphur bulk flotation of one-roughing,three-cleaning and two-scavenging,Cu-S separation of one-roughing,three-cleaning and three-scavenging,and middles back to the flow-sheet in turn.Good concentration indexes were gained.The tailings from the bulk flotation contained 26.06% Fe with Fe recovery of 71.33% and the sulphur content in tailings was reduced to 0.68%,which provides good preconditions for the recovery of iron minerals.

Key words: High-sulphur and low-copper iron ore, Chalcopyrite, Pyrite, Magnetite, Pyrrhotite, Copper and sulphur bulk flotation, Separation of copper and sulphur