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1、第36卷第4期礦冶工程V〇1.36^42016年08月MININGANDMETALLURGICALENGINEERINGAugust2016廣西某低品位復(fù)雜銅鋅多金屬礦選礦試驗?闕紹娟(廣西冶金研究院有限公司,廣西南寧530023)摘要:針對廣西某低品位復(fù)雜銅鋅多金屬礦進行了選礦試驗研究,在磨礦細(xì)度-74pm粒級占85%的情況下,通過一粗三掃四精優(yōu)先選銅、選銅尾礦一粗兩掃三精選鋅、選鋅尾礦一粗兩掃兩精選硫砷、硫砷混合精礦一粗兩掃兩精再分離、中礦順序返回的閉路試驗流程,獲得銅精礦銅品位16.29%、銅回收率51.48%,鋅精礦鋅品位45.61%、鋅回收率72.15%,硫精礦硫品位
2、36.35%、砷品位0.67%、硫回收率46.09%,砷精礦砷品位31.54%、砷回收率75.10%,綜合回收了礦石中的有價元素。關(guān)鍵詞:銅鋅多金屬礦;綜合回收;浮選;回收率;銅精礦;硫精礦;砷精礦中圖分類號:TD923文獻(xiàn)標(biāo)識碼:Adoi:10.3969/j.issn.0253-6099.2016.04.012文章編號:0253-6099(2016)04-0045-4BeneficiationTestsofLow-gradeandComplexCopper-ZincPolymetallicOreinGuangxiQUEShao-juan(GuangxiMetallurgica
3、lResearchInstituteCoLtd,Nanning530023,Guangxi,China)Abstract:Beneficiationtestsolalow-gradeandcomplexcopper-zincpolymetallicoreinGuangxiwerecarriedout.Aftergrindedtoafinenessol-74^m85%,theorewasprocessedwithaclosed-circuitflowsheetincludingaCu-preferentialflotationwithoneroughing,threestages
4、olscavengingandfourstagesolcleaning,azincflotationforcoppertailingswithoneroughing,twostagesofscavengingandthreestagesofcleaning,asulfur-arsenicflotationforzinctailingswithoneroughing,twostagesofscavengingandtwostagesofcleaning,andaseparationofsulfur-arsenicbulkconcentratewithoneroughing,two
5、stagesofcleaningandtwostagesofscavenging,whilethemiddlingswerereturnedsequentiallybacktothepreviousstage.Asaresult,acopperconcentrategrading16.29%at51.48%recovery,azincconcentrategrading45.61%at72.15%recovery,asulfurconcentratewithsulfurgradeof36.35%,arsenicgradeof0.67%andsulfurrecoveryof46.
6、09%,andanarsenicconcentratewitharsenicgradeandrecoveryof31.54%and75.10%,respectively,wereobtained.Valuableelementsintheorecantherewithberecoveredcomprehensively.Keywords:copper-zincpolymetallicore;comprehensivereclaiming;flotation;recovery;copperconcentrate;sulfurconcentrate;arsenicconcentra
7、te隨著礦產(chǎn)行業(yè)的快速發(fā)展,高品位簡單易采易選表1原礦多元素化學(xué)分析結(jié)果(質(zhì)量分?jǐn)?shù))/%礦產(chǎn)資源日漸枯竭,品位低、組分復(fù)雜的多金屬礦的開CuZnSAsSnFe發(fā)成為未來發(fā)展趨勢。復(fù)雜多金屬礦礦物間往往相互0.121.264.372.030.035.89緊密共生,給選礦分離帶來一定的難度,從而成為選礦PbSi〇2CaOAl2〇3MgOAg1)科技工作者研究突破的重點課題[
8、-4]。本文針對廣西0.05937.9015.116.250.981.82某低品位復(fù)雜銅鋅多金屬礦礦石性質(zhì),進行了系統(tǒng)詳1