文章摘要
云南某含银铜铅混合精矿分离试验研究
Experimental Study on Separation of a Silver-Bearing Cu-Pb Mixed Concentrate in Yunnan
投稿时间:2018-11-26  
DOI:
中文关键词: 多金属硫化矿  铜铅分离  抑铅浮铜  抑制剂  浮选
英文关键词: polymetallic sulfide ore  copper-lead separation  lead-free copper float  inhibitor  flotation
基金项目:国家自然科学基金地区科学基金项目(编号:51764021)。
作者单位E-mail
杨绍晶 昆明理工大学 国土资源工程学院昆明 650093 317905202@163.com 
刘全军 昆明理工大学 国土资源工程学院昆明 650093 kmliuqj@sina.com 
罗帅 昆明理工大学 国土资源工程学院昆明 650093  
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中文摘要:
      云南某铜铅混合精矿含Cu 8.14%、Pb 38.57%、Ag 251.62 g/t,对其进行浮选试验研究铜铅的分离。通过条件试验,确定在磨矿细度为-200目含量为93.85%的情况下,抑制剂CMC+亚硫酸钠用量选择1000 g/t,捕收剂Z-200用量选择10 g/t。采用“抑铅浮铜”一粗三精一扫的闭路试验流程,获得铜品位24.73%、回收率87.24%、含铅品位6.23%的铜精矿;铅品位62.71%、回收率84.48%,含铜0.86%的铅精矿。银在铜铅精矿中进一步富集的总回收率为73.04%,实现了该铜铅混合精矿的分离及银的进一步富集。
英文摘要:
      A mixture of copper and lead in Yunnan contains 8.14% of Cu, 38.57% of Pb and 251.62 g/t of Ag. Flotation experiments were carried out to study the separation of copper and lead. Through the condition test, it was determined that for the concentrate at a grinding fineness of -200 mesh and a content of 93.85%, the ideal dosage of CMC + sodium sulfite as the inhibitor and Z-200 as the collector was 1000 and 10 g/t, respectively. By using the closed circuit test flow of "suppressing lead floating copper", a copper concentrate and a lead concentrate were separated out from the silver-bearing Cu-Pb mixed concentrate. The copper concentrate had a copper grade of 24.73% with a recovery of 87.24% and lead content had been reduced to 6.23%. The lead concentrate contained 62.71% Pb and 0.86% Cu with a lead recovery of 84.48%. A total recovery of silver could be up to 73.04% after a further enrichment process. These results indicate that the separation of the copper-lead mixed concentrate and the further enrichment of silver has been realized in the present study.
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