氟碳铈镧矿稀土萃取分离流程的经济技术指标比较

X(,100871),,P5072HCl,,,,:,,,,,[13],80,,,,3000t(REO),[4,5],,20,,P5072HCl,,1,,(REO,%):La2510Ce5010Pr515Nd1515Sm115Eu012Gd015Tb011Dy011HoLu011Y012,96%,50%,4%,,11La2O3CeO2Pr6O11Nd2O3Sm2O3Eu2O3Gd2O3Tb4O7/%9999.999999.999999.999.999.99()99.9999.95()16Vol.161No.1JOURNALOFTHECHINESERAREEARTHSOCIETY19983Mar.1998X(29571003)(29525101)(9500102)2,,,,,,,NH+4NH4Cl,Al3+Ca2+,;111,1a,(80%100%,),a,,b,b,1,A,B,,,[6,7],(),,,,,(99199%),,,24P507-HCl,,A,80%,,(30%),,,(99199%)(99%)(9919%),7612ABCe/Pr,Pr/NdSm,,3B4CC,Nd/Sm,,Nd/Sm,(9919%),(PAPB)9919%,,,,Nd/Sm,Gd/Tb/Dy,Sm/Eu/Gd(9919%)(99199%)(45%),;Gd/Tb/Dy(30%),,3000t(REO),24,3000t,300,5%;P507(cP507=1150mol/L,36%,0118mol/L),31604150mol/L(5150mol/L);45min;11211215;La/Ce=610Ce/Pr=210Pr/Nd=115Nd/Sm=810;017019;,;9mol/L,,,,()86163ABC5,ABC111291143111261140;HClNH3111381151111381160La/Ce,111231134111211133;HClNH31112411371112511342ALaCe/Pr/NdSmLaCe/PrLa/CeNd/Sm/(mol/min)427.7348.0/(mol/L)1.401.301.201.00/%(mol)fNdSm=18.2,fPr=5.5fPr=30.0,fCe=45.5fCe=64.2,fSm=15.0,fCe=49.0,fLa=27.3fLa=24.5fLa=35.8fNd=85.0/%PNdSm=99.99PPr=99.9PCe=99.999PSm=99.99PPr=30.0,PLaCe=99.999PLa=99.999PNd=99.99PLaCe=99.999/%RNdSm=99.95S1.201.201.000.40W1.020.900.360.25VsVFVwVh28030.035.76.451.35.925.781.918928.310.118.217.88.01.671.0Vmix/L140025090015090804540/m328044.491.813.4/t38.05.9510.21.42HCl/(m3/d)25.24.7218.91.84NH3/(t/d)3.840.722.50.49,SW;VsVFVwVh(L/min);Vmix343B3LaCe/PrNdSmPr/NdSm/(mol/min)4210.4/(mol/L)1.401.00/%(mol)fNdSm=18.2,fPr=5.5,fCe=49.0,fLa=27.3fNdSm=77.0,fPr=23.0/%PPrNdSm=99.95,PLaCe=99.995PNdSm=99.99,PPr=99.9S1.103.60W0.862.83VsVFVwVh25730.030.18.320810.424.56.7Vmix/L13009508090/m3231193/t31.124.6HCl/(m3/d)23.318.9NH3/(t/d)3.582.903La/CeA,,,,,ALaCe/Pr/NdSmBLaCe/PrNdSm,961C,LaCePrNd/Sm,LaCePr/Nd,LaCe/Pr,C,,,,,,,;,,,,ABC4C3LaCePrNd/SmLaCePr/NdLaCe/Pr/(mol/min)424237/(mol/L)1.401.301.20/%(mol)fSm=2.7,fNd=15.5,fPr=5.5fNd=16.0,fPr=5.6fPr=6.6,fCe=70.0fCe=49.0,fLa=27.3fCe=50.4,fLa=28.0fLa=23.4/%PSm=99,PLaCePrNd=99.99PNd=99.99,PLaCePr=99.99PPr=99.95,PLaCe=99.999S0.201.201.20W0.171.041.13VsVFVwVh46.730.06.060.928032.336.45.624730.834.92.0Vmix/L35014001200308080/m322.4250211/t2.7532.528.2HCl(m3/d)4.1625.021.6NH3/(t/d)0.643.73.273La/CeA5ABCABCLaCe/Pr/NdSmLaCe/PrNdSmLaCePrNd/SmLaCe/PrPr/NdSmLaCePr/NdNd/SmNd/SmLaCe/Pr/L1400901300803503025080950901400801504015040120080/m3338437483/t45.457.163.5HCl/(m3/d)31.844.050.8NH3/(t/d)5.056.977.613/m392/t10.2HCl/(m3/d)18.9NH3/t/d2.50/m3430529575/t55.667.373.7HCl/(m3/d)50.762.969.7NH3/(t/d)7.559.4710.113La/Ce0716411ABCBCA,23%34%;21%33%;24%37%;25%34%21A,,;BC,B300g/g,C013%CNd/SmAB,ABNd/Sm,CNd/Sm11().:,1995121.:,198213,,,11,1.1987.214YanChunhua,LiaoChunsheng,WangJianfang,etal.TheseparationprocessesofmainmineralsinChina.Ed.XuGuangxianetal.Proceedingsofthe3rdInternationalConferenceonRareEarthDevelopmenandApplications(Vol.1),Bao2tou:China.Beijing:MetallurgicalIndustryPress.1995.16.5,,,1()1.(1).,1994.3916,,,1P5071.,1992.17,,,1,,:CN1129256A.ComparisonofMainSeparationProcessesofBastnastieandtheirEconomicalandTechnicalIndicesYanChunhua,LiaoChunsheng,JiaJiangtao,LiBiaoguo(StateKeyLaboratoryofRareEarthMaterialsChemistry&Applications,PekingUniversity,Beijing100871,China)AccordingtotherareearthmarketseveralfeasibleseparationprocessesofbastnasiteinBaotou(InnerMongolia)andMianning(Sichuan)bysolventextractioninP507-HClsystemwerepresented.Theparameters,suchasstagenumbers,volumeofmixer2settler,investmentofextractantandrareearths,consumptionofchemicalsoftheprocesses,werecalculatedandcompared.Bytheeconomicalanalysisanoptimizednovelseparationprocessforbastnasitewasobtained,whichcanbeappliedtotreatmonazitetoo.Keywords:Rareearths,Bastnasite,Solventextractionseparation,Economicalandtechnicalindices:19970908171