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1、第24卷第6期礦冶Vo1.24,No.62015年12月MINING&METALLURGYDecember2O15文章編號:1005—7854(2015)06—0001—06某銅鉬浮選尾礦浮選試驗(yàn)研究譚鑫,何發(fā)鈺譚欣(1.東北大學(xué)資源與土木工程學(xué)院,沈陽110819;2.北京礦冶研究總院礦物加工科學(xué)與技術(shù)國家重點(diǎn)實(shí)驗(yàn)室,北京102628;3.中國五礦集團(tuán)公司,北京100010)摘要:為了提升銅鉬資源利用效率,對某銅鉬尾礦開展銅鉬再回收利用浮選試驗(yàn)研究。針對該礦石有用礦物品位低,礦物嵌布粒度較細(xì),且銅的氧化率較高、礦石成分復(fù)雜的特點(diǎn),采用“礦石脫泥一粗
2、砂銅鉬部分優(yōu)先浮選一粗精礦再磨精選一銅鉬硫混合浮選~混合精礦再磨后銅鉬一硫分離一分離尾礦選硫”的浮選工藝流程,從銅、鉬含量分別為0.086%和0.011%的原礦,獲得銅鉬混合精礦1含銅19.05%,含鉬4.32%,銅、鉬回收率分別為25.57%、49.71%;銅鉬混合精礦2含銅2.49%,含鉬0.22%,銅、鉬回收率分別為3.73%、2.82%,較好地實(shí)現(xiàn)了銅鉬資源的再回收利用。關(guān)鍵詞:銅鉬尾礦;再回收;銅鉬混合精礦;脫泥中圖分類號:TD952文獻(xiàn)標(biāo)志碼:Adoi:10.3969/j.issn.1005-7854.2015.06.001FL0TATI
3、ONTESTS0NFL0TAT10NTAILINGS0FAC0PPER—M0LYBDENUM0RETANXin‘一HEFa—yuTANXin(1.SchoolofResourcesandCivilEngineering,NortheasternUniversity,Shenyang110819,China;2.BengGeneralResearchInstituteofMiningandMetallurgy,StateKeyLaboratoryofMineralProcessing,ResearchandDesignInstituteofMinera
4、lEngineering,Beng102628,China;3.ChinaMinmetalsCorporation,Beijing100010,China)ABSTRACT:Inordertoimprovethebeneficiationeficiencyofcopper-molybdenumresources,aflotationteststudywascarriedoutontheflotationtailingsofacopper—molybdenumore.Forthematerialwaslowingradeofval—uableminer
5、als,fineinparticlesizedistribution,complexincompositionsandhighinoxidationrateofcooper,aprocessof“desliming,Cu—Mopartially-selectiveflotationforcoarsefraction,regrindingofroughconcentratefol—lowedbymultistagecleaning,Cu—Mo—Sbulkflotation,regrindingofbulkconcentratefollowedbysep
6、arationofCu—MofromSandrecoveringsulfurfromtheseparationtailings”wasdevelopedtorecovervaluableminerals.FortherawtailingswithCugradeof0.086%andMogradeof0.011%.thefinallocked—cycleexperimentsobtainedagoodresultsthatthecoppermolybdenummixedconcentrate1containedCu19.05%,Mo4.32%,with
7、recoveriesof25.57%forCuand49.71%forMorespectively.a(chǎn)ndthecoppermolybdenummixedconcentrate2containedCu2.49%,Mo0.22%,withCurecovery3.73%andMorecovery2.82%.KEYWORDS:copper—molybdenumtailingsore;recycle;copper-molybdenumbulkconcentrate;desliming我國銅鉬礦特點(diǎn)是品位低、儲量少,而近些收稿日期:2014-12-09基金項(xiàng)目
8、:國家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)項(xiàng)目年來,優(yōu)良資源的大規(guī)模開發(fā)利用導(dǎo)致高品位易選(2013AA0641