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1、第3l卷第3期礦冶工程V0l_3l№32011年06月MININGANDMETALLURGICALENGINEERINGJune2011提高某復(fù)雜鉛鋅礦伴生銀選礦指標(biāo)新工藝研究①羅仙平,周賀鵬,周躍,雷梅芬,張俊(1.江西理工大學(xué),江西贛州341000;2.四川天工威達科貿(mào)有限公司,NJII成都610036)摘要:為提高某復(fù)雜鉛鋅礦伴生銀選礦指標(biāo),以CaC1:+IJY一05組合藥劑作為黃鐵礦的抑制劑,ZnSO作為鋅礦物的抑制劑,乙硫氮+丁銨黑藥作為鉛礦物的捕收劑,在較低的礦漿pH值條件下采用抑鋅浮鉛優(yōu)先浮選流程來實現(xiàn)鉛鋅分離并盡可能回收其中的銀礦物。試驗結(jié)果表
2、明,采用新工藝可使鉛精礦產(chǎn)品中鉛品位達到65.15%、回收率為60.29%,銀品位達到3200g/t、回收率為44.09%,與原工藝相比,鉛回收率提高了3.26%.銀回收率提高了31.98%;鋅精礦產(chǎn)品中鋅品位達到58.25%、回收率為83.65%,銀品位達到230s/t、回收率為30.97%,與原工藝相比,鋅回收率提高了5.40%,銀回收率提高了12.05%。與原工藝相比,新工藝不僅大幅度提高了銀的回收率,而且鉛、鋅精礦質(zhì)量與回收率也得到了提高。關(guān)鍵詞:浮選;鉛鋅礦;伴生銀;組合抑制劑中圖分類號:TD923文獻標(biāo)識碼:A文章編號:0253—6099(2011
3、)03—0035—05NewTechniquetoImproveDressingIndexesofAssociatedSilverinComplexLead.zincOreLUOXian—ping,ZHOUHe—peng,ZHOUYue,LEIMei—fen,ZHANGJun(1.JiangxiUniversityofScienceandTechnology,Ganzhou341000,Jiangxi,China;2.SichuanTiangongWeida&TradeCoLtd,Chengdu610036,Sichuan,China)Abstract:Toi
4、mprovethecomprehensiverecoveryofassociatedsilverfromacomplexlead—zincore,CaC12/LY一05andZnSO4wereusedrespectivelyasthedepressantsofpyriteandzinc—bearingmineral,whileacombinedreagentofdiethyl—dithiocarbamateandbutylaminewasusedasthecollectorofleadminerals.ForapulpwithlowpH,Pb/Znselect
5、iveflotationprocesswaschosentorealizethesepIarationofzincandleadmineralsandtoreclaimasfaraspossiblethesilvermineralstherein.Leadgradeandrecoveryoftheleadconcentrateobtainedadoptingthisnewtechniqueare65.15%and60.29%,respectively,whilethecontentandrecoveryofsilverinthisleadconcentrate
6、are3200g/tand44.09%,respectively,andtherecoveriesofleadandsilverhavebeenincreasedby3.26%and31.98%,respectively.Zincgradeandrecoveryofthezincconcentrateare58.25%and83.65%,respectively,whilethecontentandrecoveryofsilverinthiszincconcentrateare230g/tand30.97%,respectively,andtherecover
7、iesofzincandsilverhavebeenraisedby5.40%and12.05%,respectively.Thisnewmethodhasabetterindexthanthetraditionalprocess,asitcannotonlyincreasegreatlythesilverrecovery,butalsoimprovetheconcentratequalityandrecoveryofleadandzinc.Keywords:flotation;lead—zincore;associatedsilver;combineddep
8、ressant某復(fù)雜多金屬鉛鋅礦屬于以