含钛矿渣的生产及综合利用新进展赵凯

　　　201129含钛矿渣的生产及综合利用新进展＊赵　凯　齐渊洪　郭培民　甄常亮(,　100081)　:高炉法冶炼钒钛磁铁矿过程中生产了大量含TiO225%左右的高钛渣,总结了高钛高炉渣提钛技术和制备新材料方面取得的新进展,指出了高钛高炉渣综合利用的难点,比较有发展前景的工艺及应该遵循的原则。针对转底炉预还原-电炉熔分方法处理钒钛磁铁矿生产出的TiO2品位在40%左右的钛渣,提出了两步调渣法新工艺,并进行了理论分析,为钛资源的综合利用提供一条新途径。:含钛矿渣;提钛;分离;富集;综合利用PRODUCTIONANDNEWDEVELOPMENTOFCOMPREHENSIVEUTILIZATIONOFTITANIUM-BEARINGSLAGZhaoKai　QiYuanhong　GuoPeimin　ZhenChangliang(StateKeyLaboratoryofAdvancedSteelProcessandProducts,CentralIron&SteelResearchInstitute,Beijing100081,China)Abstract:Titanium-bearingslagwasproducedbyBlastFurnacemethodinprocessingvanadium-titaniummag-netite.Newdevelopmentofextractingtitaniumfromtitanium-bearingslagandpreparationofnewmaterialsweresummarized;Atthesametimethedifficulties,morepromisingtechnologiesandprincipleswhichshouldbecompliedinthecomprehensiveutilizationofprocessingvanadium-titaniummagnetitewerealsopointedout.AnewrouteaboututilizationofTitanium-bearingslagwhosegradeis40spercentbyRotateHearthFurnace(RHF)preproduction-electricfurnacemeltingseparationmethodwasproposedandthetheoreticalanalysiswasalsocarriedout,whichprovidedanewwayforthecomprehensiveutilizationoftitaniumresource.Keywords:Titanium-bearingslag;extracttitanium;separation;enrichment;comprehensiveutilization　　,,。,,,TiO225%。,,8000t,300t,,,,,,。1　,TiO2,,TiO2。1、2。1　%TiO2TFeSiO2Al2O3CaOMgOV2O5Cr2O3MnO22～268.4817.6014.5920.348.200.220.0150.45＊(07261070)。2　[1]()%CaOSiO2TiO2MgOAl2O3V2O5MnOFeOS25.8033.3513.968.7316.360.080.740.020.5526.4129.1519.498.0715.810.410.610.0541.041.9953.940.341.561.120.000.00223DOI:10.13205/j.hjgc.2011.s1.028　　　2011292　2.1　从含钛高炉渣中提钛技术2.1.1　2006,,,60t,13t,43%,TiO22%,TiO290%,1000kWh[2],,。2.1.2　“”,,,、,,,,,200812252.6t[2],,、。[3],,。TiO236.46%,43.77%。2.1.3　,[4]m()∶m()=100:66,1250℃,30min,,,TiO296.1%,TiO210%;[5],,0.071mm,900℃,TiO2、SiO2,,,。、,,4.85%18.03%。,,,,。2.1.4　TiO2[6]Ti,,TiO290%,TiO290%。Ti,8h,。[7],,TiO298%,,。[8],,、,,,39%,Ti3O5100μm,。2.1.5　[9-14],,、、、、、、,TiO235.25%,68.20%,TiO29.29%,31.80%。,。,,,,,、。2.2　高钛高炉渣非提钛技术研究2.2.1　[15]、,、X-3B,,、X-3B,。2.2.2　[16],28d,80%MU15。[17]224　　　201129,40%,GB5101-2003MU15。。2.2.3　、[18],:、、、、、、。,、、,,,。2.2.4　、,,4[2]。,,;,;,,;,。3　-,,,1,-TiO240%,,,,,,,,,[19]。2:750℃～950℃,,:SiO2(60%),TiO2(20%),,CaO、MgO、Al2O3,80%TiO2CaO、MgO、Al2O3,,Na2O-TiO2Na2O-SiO2,。1　-2　Na2O-TiO2-SiO2,。:1)CaO、MgO、Al2O3,,Na2O、CaO、MgO、Al2O3、TiO2400℃,CaO、MgO、Al2O3。2)SiO2,SiO2,,Na2O-TiO2-SiO2,225　　　2011293　SiO2、TiO2,SiO2。3),,TiO2,90%,。4),,,,。Na2O(Na2CO3、NaOH)。4　1),,。2),。3)-TiO240%,。[1].[D].:,1996.[2],,,.[J].,2009,30(3):10-15.[3].[J].,2008(4):22-25.[4],,.[J].,1999,20(4):35.[5],,,.[J].,2000,3(21):54-58.[6],.Ti[J].,2002,12(6):1281-1284.[7].[D].,2006.[8],,,.[J].,2008,8(6):1092-1097.[9].Ti[D].:,1999.[10].[D].:,2000.[11].[D].:,2000.[12].(CMSTA)[D].:,2001.[13].[D].:,2002.[14].[D].:,2003.[15].[D].:,2005.[16].[J].,2007,28(2):57-62.[17].[J].,2009(1):36-39.[18].[P].CN101182227.[19].-[C]//2008,,2008.[20],.[J].,2005,2(26):5-10.　　100081　76　　(010)62185573E-mail　[e-mail]2010-07-08(96)[11].[J].(),2005,23(3):9-11.[12]SamatyaS,KabayN,Yǜkselǜ,etal.Removalofnitratefroma-queoussolutionbynitrateselectiveionexchangeresins[J].ReactFunctPolym,2006,66:1206-1214.[13]ShehaRR,MetwallyE.Equilibriumisothermmodelingofcesiumadsorptionontomagneticmaterials[J].JHazardMater,2007,143:354-361.　　100083　312　(010)82320825E-mail　[e-mail]2011-07-01226