不锈钢还原脱磷研究现状及前景展望

201021、。。。。。。。2。BaOCaOCa。。、。。。、。[1－2]。21。P3-()。(710055)。。TheUp-to-dateInvestigationSituationandProspectofStainlessSteelDesulphurizationbytheProcessofReductionLIZhi-guangYUANShou-qianDONGPengJIAOQian(TheSchoolofMetallurgicalEngineering,XianUniversityofArchitectureandTechnology,Xian710055)Abstract:Theexperimentalmethodsofstainlesssteeldesulphurizationbyreductionwereintroduced,andtheinfluencefactorsofreductiondesulphurizationwereanalysed.Theup-to-dateinvestigationsituationandprospectofstainlesssteeldesulphurizationbyreductionwereconcludedbasedondomesticandforeignliteratures.Keywords:stainlesssteel;desulphurizationbyreduction;prospect7020102(、)－、－。=－440190+167.4T1=－79500－12T2=－171657－58.2T3=－413067+161.4T4(1400～1600℃)CaCaCaC2CaSiMg。33.1CAR[3－4]CaC2－CaF2CAR。CaC225kg2Cr13CaC2∶CaF24∶145kg/t75.3%CaC2CaC2。。。3.2MRS[35]Ca-CaF2MSR。Ca-CaF2Ca-CaF2Sn、PbCr、Mn、Ni、Si、C。CaOP2O53CaO3·P2O5。Ca-CaF2。3.3[6]30%。。3.4SiCa-CaF2[7]??3Ca2PCaP)??

G?3CaC(s)+2[P]=(CaP)+6[C]G?3CaSi+2[P]=(CaP)+3[Si]3Mg+2[P]=MgPG?G?CaC)=[Ca]+2[C]
3Ca(g/L)+2[P]=(CaP)7120102CaSi－CaF2。Si－CaSiCa(59%Ca－41%Si)1245℃。。。。Si100%PCa3P2。3.5[8]18Cr－8Ni70%CaO－30%CaF2Ca－Si,CaC2Ca－A1。Lp:Lp=(P%)/[%P]=4(%Ca)2Ca-AlLp47.5%。17.5gCaO、16.2gFeO、4.95gNaCO3、1.35gCr2O3、4.95gCaF2Al。3.6[9]MgOSiCaBa316LSiCaBa。,。44.1[10]。CaCaC2CaC2。4.2(Ca)。50%aC0.92aO4×10-4。4.3。。。4.4[11]。CaC2、。。()。4.5()[12]Al2O3MgOCaO[13]。4.6CaF2CaF2CaCaC2[14－15]。CaF2。5Ca3P2(Mg3P2):PH3。[16－17]。Ca3P2:。Ca3P2CaO[5]。P?CaP+3HO=3CaO+2PH3(CaP)+O=3CaO+2P2?722010260.047～0.087%。、[18]。MnCr、。SiCa－CaF2。Ca－Al,、A1－MgA1、Mg。、、(Cr,Mn),、。。7Cr。。SiCa-CaF2。[1].[M].1986[2].1985(2):1[3].[M].1986:61[4]HiroyukiKATAMAHiroyukiKAJIOKAetc.TransactionISIJ,197919:635[5]YasushiNAKAMURUNaokiTOKUMITSU,etc.Transac-tionISIJ,197616(5):623[6].[J].200021(5):23[7].CaSi[J].1984()[8].Ca－Al[J].1991,26(6):15[9].、[J].200618(8):14[10]GaridisI,etal.ReportTKK-V-B34(1887)10-25[11]KitamuraK,etal.Tetsu-to-Hanane1981,21,B:130[12].[J].1983,18(4):14[13]TorssellK.ProcShanghaiSymposiumInjecitonMetallurgy.Shanghai,1982:217[14]TakashiNAKAMURA,TakeshiYOKOYAMA,etc.Trans-actionsISIJ,1979,33(1)63[15]higeruINOUE,TsutomuUSUI,etc.TransISIJ,28,1982:192[16]MitchellA.TransactionsofTheMetallurgicalSocietyofAIME,1968,242(12):250[17].[J].1994,29(12)[18].[J].198627-1673