中矿再磨提高某矿山选铜回收率的试验研究  

Recovery Improvement of a Copper Mine by Selective Classification,Regrinding of Flotation Middling

作　　者：卜显忠[1] 李广[2] 杨燕青[1] 

机构地区：[1]武汉理工大学矿物资源加工与环境湖北省重点实验室,武汉430070 [2]紫金矿冶设计研究院,福建上杭364200

出　　处：《武汉理工大学学报》2010年第18期79-83,共5页Journal of Wuhan University of Technology

摘　　要：为提高选铜回收率,应用浮选中矿选择性分级再磨新工艺对某铜矿进行了试验研究。研究表明新工艺优化了入选原矿矿浆浓度和细度以及浮选给矿粒度组成,延长了矿物浮选时间,从而有效地提高了铜的回收率。新工艺流程粗精矿铜品位2.01%,回收率达88.48%,比原工艺流程高出2.82个百分点。这说明中矿选择性分级再磨能有效提高该矿的选铜回收率。A copper mine was experimentally researched by selective classification,regrinding and flotation of middling.The results show that the new technology not only optimises the pulp density and the ore grain size,but also prolongs the mineral flotation time.Therefore,the copper recovery rate is improved effectively.The new process get a rougher concentrate copper grade 2.01%;the recovery rate reaches 88.48%,which is 2.82 percentage points higher in comparison with the original process.This indicates that the new technology can effectively improve the recovery of this copper mine.

关 键 词：中矿选择性分级再磨 浮选 选铜回收率 

分 类 号：TD952[矿业工程—选矿]