*国家重点研发计划(编号:2022YFC2904500)。韦炳强(1972—),男,助理工程师,545999广西壮族自治区来宾市。广西某铅锌矿提高铅回收率试验及工业应用*韦炳强1周钰沣2,3蔡冰冰2,3杨建文2,3朱雅卓2,3戴明钊2,3胡波2,3(1.广西中金岭南矿业有限责任公司;2.湖南有色金属研究院有限责任公司;3.复杂铜铅锌共伴生金属资源综合利用湖南省重点实验室)摘要为了提高广西某铅锌选矿厂的铅回收率及稳定指标,针对现场选铅流程循环量大的问题,经流程查定后确定以铅精选1尾矿为研究对象,在对方铅矿嵌布粒度及嵌布特征进行工艺矿物学分析的基础上进行了铅精选1尾矿再磨再选小型试验并对选厂生产工艺进行了磨矿工艺流程改造。结果表明:约有20%的铅矿物可以转化成铅精矿产品,再磨后铅精选作业循环量显著下降;经磨矿工艺流程改造后的选厂生产中,铅回收率可提高5个百分点以上,经济效益显著。关键词大循环量铅精选1尾矿铅回收率再磨再选DOI:10.3969/j.issn.1674-6082.2023.09.034ExperimentalStudyandIndustrialApplicationonImprovingLeadRecoveryRateofaLead-ZincMineinGuangxiWEIBingqiang1ZHOUYufeng2,3CAIBingbing2,3YANGJianwen2,3ZHUYazhuo2,3DAIMingzhao2,3HUBo2,3(1.GuangxiZhongjinLingnanMiningCo.,Ltd.;2.HunanResearchInstituteforNon-ferrousMetalsCo.Ltd.;3.HunanProvinceKeyLaboratoryforComplexCopperLeadZincAssociatedMetalResourcesCom⁃prehensiveUtilization)AbstractInordertoimprovetheleadrecoveryrateandstabilityindexofalead-zincconcentratorinGuangxi,aimingattheproblemoflargecirculatingquantityintheon-siteleadseparationprocess.Aftertheprocessinvestigation,itwasdeterminedthattheleadcleaningselection1tailingsweretakenastheresearchobject.Basedontheprocessmineralogyanalysisofthedisseminationparticlesizeanddisseminationcharac⁃teristicsoftheleadore,asmalltestofregrindingandre-concentrationoftheleadcleaningselection1tail⁃ingswascarriedout,andthegrindingprocesswasreformedfortheproductionprocessoftheconcentrator.Theresultsshowedthatabout20%ofleadmineralscouldbeconvertedintoleadconcentrateproducts,andthecirculatingquantityofleadcleaningoperationdecreasedsignificantlyafterregrinding.Intheproductionoftheconcentratorafterthetransformationofthe...