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金属矿山 ›› 2012, Vol. 41 ›› Issue (07): 155-157.

• 综合利用 • 上一篇    下一篇

安徽某铁尾矿中铜硫的选矿回收研究

叶雪均,熊立   

  1. 江西理工大学资源与环境工程学院
  • 出版日期:2012-07-15 发布日期:2012-07-26

Research on Recovering Copper and Sulfur from a Iron Tailings from Anhui

Ye Xuejun,Xiong Li   

  1. Faculty of Resource and Environmental Engineering,Jiangxi University of Science and Technology
  • Online:2012-07-15 Published:2012-07-26

摘要: 针对安徽某铁矿磁选尾矿中铜矿物粗细不均,次生硫化铜含量较高,且部分黄铜矿被黄铁矿包裹等特点,在原铜硫混浮—铜硫分离工艺前进行了增设快速浮铜工艺环节的研究,并对混精再磨、分离工艺进行了优化研究。采用试验确定的半优先浮铜闭路试验流程处理该试样,可获得铜品位21.48%、回收率达82.85%的铜精矿,以及硫品位为48.34%、回收率为84.43%的硫精矿,试验铜回收率较生产平均铜回收率高10个百分点以上。

关键词: 磁选铁尾矿, 铜硫分离, 半优先浮选

Abstract: According to the feature of a iron tailings after magnetic separation with copper thickness of inequality,high secondary copper sulfide, and part of chalcopyrite wrapped by pyrite, before the original process of Cu-S bulk flotation-Cu-S separation added speed flotation, and corried out the optimized research on regrinding of mixed concentrate and separation process. Using the closed circuit process of partical-differential flotation, can get the copper concentrate with 21.48% grade and 82.85% recovery, S concentrate with 48.34% grade and 84.43% recovery. The copper recovery of test 10 percent points higher than production.

Key words: Iron tailings of magnetic separation, Cu-S separation, Partial-differential flotation