福建某难选硫化铅锌矿石选矿试验  

Beneficiation Experiment on a Refractory Lead-zinc Sulfide Ore from Fujian

作　　者：郭万富[1] 刘述忠[1] 黄石[1] 李宝铸 

机构地区：[1]福州大学紫金矿业学院,福建福州350116

出　　处：《金属矿山》2015年第9期68-71,共4页Metal Mine

摘　　要：福建某铅锌矿属于难分离硫化铅锌矿,矿物种类繁多,嵌布关系复杂,共生关系密切。为高效开发利用该矿石资源,采用优先浮选工艺进行了选矿试验。结果表明,在磨矿细度为-0.074 mm占70%的情况下,采用1粗2扫3精选铅,1粗1扫3精选锌,中矿顺序返回闭路流程处理该矿石,最终可取得铅品位为41.46%、含锌4.19%、铅回收率为81.76%的铅精矿,和锌品位为48.26%、含铅0.83%、锌回收率为84.88%的锌精矿。试验确定的优先浮选工艺是该矿石的高效开发利用工艺。A lead-zinc ore in Fujian belongs to a refractory lead-zinc sulfide ore with characteristics of complex mineral composition, complex dissemination and close associations with each other. In order to high efficiently exploit and utilize the re- sources, experimental study on the ore was made by adopting the preferential flotation process. Results showed that under the grinding fineness of 70% -0. 074 ram,lead concentrate with Pb grade of 41.46% and recovery of 81.76%, and zinc concen- trate with Zn grade of 48.26% and recovery of 84.88% were obtained respectively by the process of lead concentration with one roughing-three cleaning-two scavenging, zinc concentration with one roughing-three cleaning-one scavenging, and middlings back to the flow-sheet in turn. The selective flotation process is a highly efficient method for exploiting the ore.

关 键 词：硫化铅锌矿 优先浮选 抑锌浮铅 

分 类 号：TD923.7[矿业工程—选矿]