内蒙古某高炭含铜铅精矿浮铜提质试验  

Experiment on Copper Flotation and Quality Improvement of High Charcoal Copper-bearing Lead Concentrates in Inner Mongolia

作　　者：黄雄 孙忠梅[1,2] 李国尧 温建 陈水波[1,2] 

机构地区：[1]紫金矿业集团股份有限公司,福建上杭364200 [2]低品位难处理黄金资源综合利用国家重点实验室,福建厦门361101

出　　处：《金属矿山》2017年第12期63-66,共4页Metal Mine

摘　　要：内蒙古某高炭含铜铅精矿-38μm占94.5%,铅、铜含量分别为52.73%和1.63%,主要铅矿物为方铅矿,含量达60.24%,主要铜矿物为黄铜矿,含量达4.33%,黄铜矿单体解离度达90%,具备很好的铜铅分离条件。实现铜铅高效分离既有利于提高铅精矿品质,又有利于优化产品方案,提高产品的附加值,因此,采用实验室合成的可溶性好、无毒、易降解有机药剂ZJ-88为抑铅浮铜抑制剂,进行了铜铅分离试验。结果表明,试样经1粗3扫开路浮选流程先浮出可浮性好的有机炭质物和活性极高的微细粒铅矿物,再采用1粗2精2扫抑铅浮铜闭路流程分离铜铅,最终获得了铜品位为21.83%、铜回收率为44.59%的铜精矿,以及铅品位为54.24%、铅回收率为99.45%的铅精矿。新型高效有机抑制剂ZJ-88的使用对从高炭含铜铅精矿中成功分离出合格铜精矿,且使铅精矿铅品位提高1.51个百分点起着决定性的作用。A high charcoal copper-bearing lead concentrate in Inner Mongolia with the fineness of-38 μm accounted for 94. 5%,contains 52. 73% lead,and 1. 63% copper. The main lead mineral is galena with content of 60. 24%,and the main copper mineral is chalcopyrite with content of 4. 33%. The monomer dissociation degree of chalcopyrite is 90%,creating a good copper-lead separation condition. Efficient separation of copper and lead is not only beneficial to improve the quality of lead concentrate,but also optimize product program and raise value-added products. Therefore,using laboratory synthesis of soluble, non-toxic,easily degradable organic agent ZJ-88 as the inhibitor of galena,copper lead separation tests were made. The test re-sults showed that by the open circuit process of one roughing-three scavenging to remove floatable organic charcoal and high ac-tivity of fine particulate lead minerals firstly,then using the closed circuit flowsheet of one roughing-2 cleaning-2 scavenging to separate the copper and lead,a copper concentrate with copper grade of 21. 83% and recovery rate of 44. 59%,and a lead concentrate with lead grade of 54. 24%,recovery rate of 99. 45% were obtained separately. The new and highly-effective organ-ic inhibitor,ZJ-88,has successfully separated the qualified copper concentrates from high-charcoal copper-bearing lead con-centrates and has made a decisive role in improving the lead grade of lead concentrates by 1. 51 percentage points.

关 键 词：高炭含铜铅精矿 铜精矿 有机抑制剂ZJ-88 有机炭 

分 类 号：TD953[矿业工程—选矿] TD952