贵州某铅锌尾矿工艺矿物学研究  

Process Mineralogy of Lead-Zinc Tailings in Guizhou Province

作　　者：黄凌云[1,2] 杨波[1,2] 童雄[1,2] 

机构地区：[1]昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室,云南昆明650093 [2]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《昆明理工大学学报（自然科学版）》2017年第4期25-31,37,共8页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：云南省科技攻关计划项目(2016DG001)

摘　　要：采用MLA、EPMA、SEM-EDS、XRD等现代分析测试手段对贵州铅锌尾矿试样进行了详细的工艺矿物学研究.研究结果表明:尾矿中主要含铅矿物为方铅矿和白铅矿,但含铅矿物嵌布粒度微细,且主要分布在-28μm的微细粒级中,回收难度较大.含锌矿物主要为菱锌矿和硅锌矿,损失的主要原因为原矿分选过程中缺少氧化矿浮选流程,其中菱锌矿分布较广且嵌布粒度较粗,主要与白云石、含铅锌褐铁矿共生,为尾矿再选回收的主要对象.此外,菱锌矿中含有一定量的稀贵金属锗,可在锌精矿得到一定程度的富集.研究结果对原矿选矿工艺流程的改进及该尾矿资源的回收利用具有重要的指导意义.A variety of modern testing methods such as MLA,EPMA,SEM-EDS and XRD are adopted to systematically study the processing mineralogical characteristics of lead-zinc tailings in Guizhou Province.The mineralogical analysis results show that the lead minerals are mainly galena and Cerussite with very fine dissemination size,mostly under 28 μm,which makes it difficult to recover.The zinc minerals are mainly smithsonite and willemite.Lack of oxidized ore flotation process is the main cause of high zinc loss in tailings.With a wider distribution and coarser dissemination size,smithsonite containing lead and zinc limonite symbiosis is the main object for tailings reelection.In addition,smithsonite contains a certain amount of rare metal germanium,which can get a degree of enrichment in zinc concentrate.The results of this study provide basic data and theoretical basis for ore dressing.

关 键 词：铅锌尾矿 工艺矿物学 矿物解离度分析仪 综合回收 

分 类 号：TF89[冶金工程—有色金属冶金]