从含铜金精矿综合回收金银铜硫的湿法冶金工艺研究(煤油提硫)v

12220043黄金科学技术GoldScienceandTechnologyVol.12,No.2Mar.2004从含铜金精矿综合回收金银铜硫的湿法冶金工艺研究黄怀国1,2(1厦门紫金科技股份有限公司,福建厦门361006;2福建紫金矿冶研究设计院,福建紫金矿业股份有限公司,福建上杭364200):,,,,97.3%76.0%99.0%99.1%1100.45MPa,,,,:;;;:TF831/TF803.2:A:1005-2518(2004)02-0027-081前言,[1,2],600~700,,[3],,,,,,,[4],,,,,,SO2,,,2矿样性质2.1,,,,11:2003-12-09;:2004-01-08:(2001BA609A-17):(1974-),,,,.,,2.22,;,2Au/10-6Ag/10-6CuTFeFe()SSiO2Al2O3MgONa2O(%)46.2586.0013.4828.1611.7426.3315.706.050.741.52CaOBiZnAsSbNiMnPbK2O0.370.060.130.100.060.020.020.010.770.3016.332.3(3),,,3(%)1.390.200.6911.4413.723试验方法及主要设备3.1FCH2,,,,,60,XTLZ,3.2100g+300ml,,110~120,10min,;,200ml,110~120,10min,;,,,3.3,pH=10~12,NaCNHY-8,,4结果与讨论4.1,,110g/l,12%,15kg/t,67.37%8.65%4.228121,NaCl(1abcdefg)1a,,,,-0.044mm(-325)90%292:1b,(0.45MPa),,,,,W=KPO2,,,,0.45MPa,,,;0.45MPa,,0.45MPa1c,,Fe2O3;,Fe3+,,,,,,,,,,90g/l1d,,,,,,,,NaCl20g/l:V=-dC/dt=KD(C0-CS)C0,CS,C0-CS0,,,,,,1f,2.5h,;,,2.5h,,Fe3+Fe2O3,1e,,(90~100),,110,90%,,,10,20%,1,90~120,;120,,,110,,,4.3NaCN(2abcd),,2a,Cu2+Cu(I),,Cu(CN)2-3(2Cu2++8CN-=2Cu(CN)2-3+3012(CN)2),Cu(II)4,,,22a,2%,70%,2%,,95%,6%,6%,NaCNNaCN,2bNaCN2b,NaCN,NaCN,NaCN10kg/t2c2c,NaCN,,,2.52d,,14h,16h,16h4.4,:-32590%,110,0.45MPa,5/1,312:2.5h,[H2SO4]=91.5g/l,[NaCl]=20g/l,750rpm;:,2.5,NaCN10kg/t,16h,96.3%76.7%99.0%4.5XRD(3),,,3X,,,,,,(Fe2O3,1),((H3O)Fe3(SO4)2(OH)6,(2),(Fe(OH)SO4,(3)Fe2(SO4)3+3H2O=Fe2O3+3H2SO4(1)3Fe2(SO4)3+14H2O=2(H3O)Fe3(SO4)2(OH)6+5H2SO4(2)Fe2(SO4)3+2H2O=2Fe(OH)SO4+H2SO4(3),,,,,,,,,,,,(4),,4.6,,,,,,,,,(),3212,99.1%,97%,,,6kg/t44(%)(kg/t)(h)Au/10-6Ag/10-6Au(%)Ag(%)16.0310160.6419.5997.577.20.156160.7020.6897.376.05结论,,,,,,,,,,,,,,,,,,,,[1]管则皋,刘勇.从含铜金精矿中提取金铜的选冶工艺研究[J].湿法冶金,2000,1:10-15.[2]薛光.从含铜铅金精矿中提取金银的工艺方法[J].黄金地质,2000,6(3):77-79.[3]江国红,易聘泉.从含砷难浸金矿石中提取金银铜锌的工艺试验研究[J].湿法冶金,2000,1:6-9.[4]周世杰,仲崇波,张淑敏,等.提高吉林珲春金铜矿含铜金精矿氰化浸出率的试验研究[J].黄金,1999,20(4):38-40.332:StudyonHydrometallurgicalProcessforComprehensiveRecoveryAu,Ag,CuandSFromCopper-BearingGoldConcentrateHUANGHuaiguo1,2(1.XiamenZijinScienceandTechnologyCo.,Ltd.,Fujian,Xiamen361006,China;2.FujianZijinResearchInstituteofMiningandMetallurgy,FujianZijinMiningIndustryCo.,Ltd.,FujianShanghang364200,China)Abstract:Acleanhydrometallurgyprocessofcomprehensiverecoveringgold,silver,copperandsulfurfromcopper-bearinggoldconcentratesisstudied.Thisprocessconsiststhreesections:(1)oxidationleachingofCubyhot-pressureacidleaching,(2)extractionofsulfurbykerosene-solublemethod,(3)leachinggoldandsilverwithcyanide.Therecoveryratesofgold,silver,copperandsulfurare97.3%,76.0%,99.0%and99.1%respectively.Hot-pressureacidleachingofCuisoperatedat110oftemperatureand0.45MPaofoxygenpartialpressure,withtheadvantageofhighrecoveryforvaluableconstituent,simpletechnologyandeasyapplicationtoindustrialprocessing.Keywords:Copper-bearinggoldconcentrates;Comprehensiverecovery;Hydrometallurgy;Hot-pressureacidleaching,,,,90%,,,,,:(1).,,pH1.0~3.0,0.01-5mol/L,;(2).,4~100,;(3).,,30~1804~10;(4).,,;(5).pH10~12,,,清华大学:李登新等3412