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··20103、、。、。。。1、、、。、、40~74μm1%。60~300μm70%10~60μm。9%10%。1、、2。22009-12-062010-01-251978-。364200、。pHCuSO4。0.72%、2.72%、6.26%47.20%、66.89%48.90%、79.25%。TD952.2TD952.3A1671-9492201003-0017-051、。。2。3、。、、、。41Table1Multi-elementaryanalysisresultsofrun-of-mineore%Pb0.77Au、Agg/t。Zn2.86C6.26Cu0.09TS8.28Tfe11.26Sb0.02Au*0.03Ag*15.92As0.005SiO248.56Al2O37.87MgO3.06CaO2.3917··20103Pb2+、。。、——、、1。44.5%。—、。—。33.1。2-3。。。。3.1.1、、。。、。-74μm81.4%CaO750g/t。3。3.1.2。。、、。12、3。2、、1、2、3、。、、2Table2Thedistributionofcarbonleadandzinc%PbSO40.1620.00ZnS2.3988.85PbCO30.1113.75ZnSO40.010.37PbS0.5062.500.058.92PbSiO30.033.750.241.860.80100.02.69100.06.26100.02.6842.80+3.5857.203Table3Theresultsofselectionofcarbonremovingreagents%/g·t-13020Pb3.5296.48100.03.8096.20100.00.470.750.740.500.750.74ZnCPbZnC1.572.712.671.552.672.6325.126.076.7424.166.206.952.2497.76100.02.5797.43100.02.0697.94100.02.2497.76100.013.1286.88100.013.3486.66100.03018··20103。30g/t20g/t。5.2%5.6%。3.23.2.1pHpH．CaOH2pH0～60℃0.090.28-0.0334。。、。pH12Ca2+OH－。Ca2＋Ca2＋OH-CaOH＋。。OH-。CaOCaSO4。。“”。、1000、1500、2000、25003000g/t45。5、。519··201032000g/t。1000g/t2000g/t。2000g/t。Na2SO3＋ZnSO4400＋800g/t。3.2.2。pH。5-6pH11PbDDTCPbS。pH。、10、20、30、4050g/t46。3.2.3、1。37.59%6.69%。2。34.28%6.32%。3。。。0.70%61.3%4.8%56.23%1.26%。15g/t。7。3.2.4。。72000g/tNa2SO3＋ZnSO4400＋800g/t20g/t10g/t。8。3.3。pH11~12220g/t100g/t24g/t。20··2010350%。3.4——94。41、。2pH。3、、、、47.20%、66.89%48.90%、79.25%。1．、J．2001619-2218．2．J．2009415-18．3．J．2000194279-282．4．M．．1985257．5．M．1992129-131．6．J．19966289-934Table4Theresultsoflabclosed-circuittests%PbZn8.161.054.2286.57100.00.5147.200.520.210.741.985.5648.900.372.60Pb5.6266.892.9624.54100.0Zn6.202.2479.2512.30100.01621··20103。XFD—0.5L。1.M.1987.2.J.2006619-21.STUDYONBENEFICIABILITYOFALOW-GRADEREFRACTORYCOPPER-MOLYBDENUMOREYUANMinghuaPUCangfengInstituteofYuxiChenxingMiningandMetallurgyCo.Ltd.YuxiYunnan653100ChinaABSTRACTThebeneficiabilitystudywasconductedbecauseofthepoorresultsofcopperandmolybdenumseparationinactualpracticeofalow-graderefractorycopper-molybdenummineinYunnanProvince.Thetestsappliedspecialseparationprocesscopper-molybdenumbulkflotationregrindingofbulkconcentrationandthenseparationofcopperandmolybdenum.Asaresultwehadgotbetterexperimentalindexcopperrecoveryof89.94%copperconcentrategradeof23.04%molybdenumrecoveryof67.23%andmolybdenumconcentrategradeof47.24%.Keywordslow-graderefractorycopper-molybdenumorebulkflotationcopperandmolybdenumseparationRESEARCHONTHESEPARATIONOFREFRACTORYLOW-GRADELEADANDZINCSULFIDEOREWITHCARBONHUMinZijinDesignandResearchInstituteofMiningandMetallurgyShanghangFujian364200ChinaABSTRACTInnerMongolianlowgradelead-zincorecontainshighcarbonwhichwouldhavenegativeimpactontheseparationofleadandzinc.SmallamountoflimeisemployedaspHvalueregulatortomodifythecharacteristicofbubblessotheaccumulationofcarboncouldbeavoidedduringtheflotationofleadandzinc.Ligninisusedtodepresscarbonduringtheflotationoflead.BluestoneandBXareadoptedasactivatorandcollectorrespectivelyforzincseparation.Undertheconditionof0.72%lead2.72%zincand6.26%TCinROMthequalifiedleadandzincconcentratecanbeobtainedinlabtestsgradeandrecoveryofleadandzincare47.20%66.89%and48.90%79.25%respectivelytheseparationofcarbonleadandzincwasrealized.Keywordscarbon-bearinglead-zincorecarbonremovingseparationofleadandzincferricchromeligninsulfonate!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!2116