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金属矿山 ›› 2019, Vol. 48 ›› Issue (07): 92-96.

• 矿物工程 • 上一篇    下一篇

某铜铅锌多金属硫化矿石的浮选试验

董艳红1,2,陈代雄1,2,杨建文1,2,肖骏1,2,胡波1,2,曾惠明1,2   

  1. 1. 湖南有色金属研究院,湖南 长沙410100;2. 复杂铜铅锌共伴生金属资源综合利用湖南省重点实验室,湖南 长沙410100
  • 出版日期:2019-07-15 发布日期:2019-09-17

Research on Flotation Tests of a Cu-Pb-Zn Polymetallic Sulfide Ore

Dong Yanhong1,2,Chen Daixiong1,2,Yang Jianwen1,2,Xiao Jun1,2,Hu Bo1,2,Zeng Huiming1,2   

  1. 1. Hunan Research Institute for Nonferrous Metals, Changsha 410100, China;2. Hunan Provincial Key Laboratory of Complex Copper Lead Zinc Associated Metal Resources Comprehensive Utilization, Changsha 410100, China
  • Online:2019-07-15 Published:2019-09-17

摘要: 某铜铅锌多金属硫化矿石中的有用金属矿物主要为方铅矿、闪锌矿、黄铜矿,其次是斑铜矿、蓝铜矿、异极矿和铅矾等,为了确定铜铅锌回收工艺,进行了选矿试验。结果表明,矿石在磨矿细度为-0.074 mm占75%的情况下,采用1粗3精2扫铜铅混浮、1粗3精2扫铜铅分离、1粗2精1扫选锌流程处理矿石,可获得铜品位为22.13%、铜回收率为80.08%的铜精矿,铅品位为62.32%、铅回收率为79.63%的铅精矿,以及锌品位为52.56%、锌回收率为82.20%的锌精矿。在铜铅分离过程中,无氰无铬环保型铅组合抑制剂CHP的使用是实现铜、铅高效分离的关键。

关键词: 铜铅锌硫化矿石, 铜铅混浮, 铜铅分离, 无铬无氰环保型抑制剂CHP

Abstract: Useful metal minerals in a copper-lead-zinc polymetallic sulfide ore are mainly galena, sphalerite and chalcopyrite, followed by bornite, azurite, hemimorphite , anglesite and so on. Mineral processing tests were carried out in order to determine the technological process for recovering copper, lead and zinc. The results showed that one-roughing, three-cleaning and two-scavenging for copper-lead mixed flotation, one-roughing, three-cleaning and two-scavenging for copper-lead separation flotation, one-roughing, two-cleaning and one-scavenging for zinc flotation were adopted when the grinding fineness is 0.074 mm accounted for 75%. The copper concentrate with copper grade of 22.13% and copper recovery of 80.08%, lead concentrate with lead grade of 62.32% and lead recovery of 79.63%, zinc concentrate with zinc grade of 52.56% and zinc recovery of 82.20% were obtained. In the process of copper and lead separation, CHP, an environment-friendly lead combined inhibitor without cyanide or chromium, is the key to realize the efficient separation of copper and lead.

Key words: Copper-lead-zinc sulfide ore, Copper-lead mixed flotation, separation of copper and lead, Environment-friendly inhibitor without cyanide or chromium CHP