富铅渣与铅烧结块在还原反应中的差异研究

1,2,1,PeterHayes2(11,650051;21,4072):PbO,:;;PbO;;:TF812:A:1007-7545(2006)04-0010-04StudyonReductionBehavioursbetweenLead2richSlagandSinterYANGGang1,ZHAOBao2jun2,WANGJi2kun1,HAYESPeter2(11ScienceandTechnologyDepartment,YunnanMetallurgicalGroup,Kunming650051,China;21PyrometallurgyResearchCentre,theUniversityofQueensland,Brisbane,Qld4072,Australia)Abstract:Lead2richslagswithdifferentlevelsofPbOcontenthavebeenpreparedinlaboratory1Reductionex2perimentshavebeenconductedinaverticaltubefurnaceusinggraphitecrucibletocomparethedifferentbe2havioursoflead2richslagandsinter1Itwasfoundthatbothsinterandlead2richslagreactwithcarbonthroughliquid1Thecompositionhasgreaterinfluenceonreductionratethanthestructure1Keywords:Lead2richslags;Sinter;PbO;Graphite;Reduction:(2003GH04):(1959-),,,(),,[1],[2],,PbO,,1111,,YM1,YM2YM3,1[3]1Table1Slagcompositions/%PbOZnOFe2O3CaOSiO2Al2O3YM1581791113115151014312YM25118111417106171119113YM3471313131916714121101301()20064112YM1,YM2YM3ZnO/Fe2O3/CaO/SiO2,PbO,,,X2(EPMA),[(Fe2+,Mg,Zn)O(Al,Fe3+)2O3][(Ca,Pb)2(Pb,Zn)Si2O7]Di2[(Ca,Pb)2SiO4]Pb2CaPb2Felarsenite(PbZnSiO4)PbOPb2CaPb2FelarseniteDi2PbOAl2O3,S4YM2,S4CaO/SiO2113,YM2CaO/SiO2015611319mm,Pt/Pt213%Rh,,,,5100g,,CO/CO2,,CO/CO2,[425]2211800900100011001200,5100g1mm,,COCO2,COCO2COCO2,11YM2Fig11GasevolutionofslagYM2ingraphitecrucibleasafunctionofreactiontimeandtemperature1:1),,2)900,900,2,YM22,20min,,20min,120011001200,11()20064,[6]2S4Fig12GasevolutionofleadsinterS4ingraphitecrucibleasafunctionofreactiontimeandtemperature212YM2S4,YM2S4(5100g),YM2S4,33Fig13Comparisonofgasevolutionforlead2richslagandleadsinteringraphitecrucibleatdifferenttemperature3:,S4YM21)60s,8001000,S4YM2;1200,S4YM22),500s,S4YM2;3)1000s,S4YM2213dV/dt,dV/dtYM1YM3S4,dV/dt,44:10min,,4:(1),,5min,;(2)(8001000),1200,,PbOFe2O3ZnO1100,(YM1S4),;21()20064410dV/dttFig14dV/dttcurveofsamplesreducedingraphitecrucibleatdifferenttemperatureinfirst10minutes(3),(PbO);(4)S4160mL/min,YM337mL/min31),,,;2);3),;CaO/SiO2;4),(),(),();[1],,.[M].:,2005.[2]ErringtonB,ArthurP,WangJ,etal.TheISA2YMGLeadSmeltingProcess[A].//Lead&Zinc05,Kyoto,Japan,2005:587-599.[3],,,.[J].(),2004(6):5-8.[4]JakE,ZhaoB,HarveyI,etal.ExperimentalStudyofPhaseEquilibriainthePbO2ZnO2Fe2O32(CaO+SiO2)Sys2teminAirfortheLeadandZincBlastFurnaceSinters(CaO/SiO2WeightRatioof0.933andPbO/(CaO+SiO2)Ratiosof2.0and3.2)[J].Metall.TransB,2003,34B:383-397.[5],.-[J].,2004(6):64-65.[6]ZhaoB,JakE,HayesP,etal.CharacteristicsofISAs2meltSlagandLeadBlastFurnaceSinters[A].//Lead&Zinc05,Kyoto,Japan,2005:571-586131()20064