氧化镧的生产及应用发展

:1005-2046(2007)04-0196-05氧化镧的生产及应用发展林河成(,100038):综述了我国氧化镧生产的主要发展现状;介绍了该产品的应用领域及前景;指出了国内外市场的销售情况;针对目前存在的一些问题提出了建议和措施:氧化镧;稀土;生产;应用:TF8456:AProgressofProductionandApplicationofLanthanumOxideLINHecheng(ChinaNonferrousEngineeringandResearchInstitute,Beijing100038,China)Abstract:Thepresentstatusandfutureprospectsoftheproductionandapplicationoflanthanumoxidearereviewedwiththeirsalesonboththedomesticandforeignmarketspointedout.Somesuggestiveopinionsandmeasuresregardingsomeexistingproblemsareproposed.Keywords:lanthanumoxide;rareearth;production;application;:20070328:(1935),,,,0(La2O3),,2050La2O3,2060(TBPP350P204)La2O3,2070~80,(P507),,La2O32090,La2O3,La2O3,,,2400t(La2O3),La2O3,,150,La2O3,,284Vol28No4200712SHANGHAINONFERROUSMETALSDec.200711La2O3,,(1)(REO45%,La2O338%)(REO50%,La2O325%),,,P507(SmY)La2O3(2)(REO45%,La2O387%)(REO50%,La2O332%),,P507(3)(REO45%,La2O348%)(REO92%,La2O326%),P5073,La2O312La2O3:,!RE(NO3)3∀NH4NO3#La2O3(9999%)La2O390%,,TBPP350P240P507La2O310,P507La2O3(),P507La2O3(1)(LaCe)Cl3(REO45%,La2O338%),P507(50%P50750%)P507,,,CeO2()P507,,La2O3(P507HA2)::LaCl3+3NH4(HA2)=La(HA2)3+3NH4Cl:La(HA2)3+3HCl=LaCl3+2(HA)3:2LaCl3+3H2C2O4=La2(C2O4)3+6HCl:2La2(C2O4)3+3O2=2La2O3+12CO2La2O3:P507()P507(La2O3):La2O39999%,99%;CeO299%,99%:(2)(LaCePr)Cl3(REO45%,La2O387%),P507,,,Pr6O11()P507,La2O3(1),:P507()P507(La2O3):,La2O399%,95%;Pr6O1199%,95%;,,,31974:(1)(3)(LaCePrNd)Cl3(La2O348%),P507,P5074,,,Nd2O3CePr,()P507,,La2O3(1),:,4La2O3999%,Nd2O399%3;,,3P507La2O33:La2O399%999%9999%La2O3,,Ce,PrNdFeCaBa132090,La2O3,,La2O31119901992199620002001200220032004(ta)4501850210024002500260028003100(ta)2801680155021002350210026502850(%)3040-133512-122675/(%)6291748894819595:20041,La2O3,2000~2003137%,14,La2O3,La2O322(,%)REOLa2O3,REO(∃)(∃)REOCeO2Pr6O11Nd2O3Sm2O3Y2O3Fe2O3SiO2CaOCuONiOPbOCl-(1000%)La2O3-199999900020002000100010001000050005000500005000100050510La2O3-29999950002000200010001000100005&&00005000100050510La2O3-3989990&&010&&0001001005&&&0530La2O3-4989950&&050&&0005005010&&&0530La2O3-5989900&&100&&005005015&&&05302,La2O35La2O3,,402La2O3,,,,La2O3,La2O3,La2O3La2O399995%,(%):Fe2O330∋10-6,CeO230∋10-6,Pr6O1150∋10-6,Nd2O350∋10-6,Cr2O315∋10-6,1000%04%La2O3,,,La2O327,,,,,La2O32,19828La2O3,,,21205060,903000ta,La2O3,La2O320%~60%(),(LaK)(LaF)(ZLaF),,,,:,;,;,,,9999%La2O3La2O330%,La2O3750t,22La2O3,,,;La2O3,,999%BaCO3TiO2La2O3,n,103~105cm,PLZTLa2O3,8%,20~90%10%,La2O3,,Al2O3La2O3,,La2O3,,La2O3,,23La2O3MgO+SiO210%La2O3,10,,La2O328%,La2O3,,,,,24(),Tb(LaCeTb)PO4La2O3CeO2Tb4O7H3PO4Ce(LaY)OBr(Ce,TbLa2O2S(Tb,XTb(Tm)La2O2S(Tb(Tm)1994:LaOBr(Tb(Tm)XX,X,La2O3TbLaOBr(Tb;CeLaOBr(Ce,,5%25La2O3Cr2O31300%,(LaCrO3)(2490%),,1500~1800%,,(La2O3)(B)LaB6,,,(2715%)(245∋104MPa),,1986,La2O3BaOCuOLaBa2CuO4,Te35KLa2O3SrONb2O5,258KLa2O3(Ag),,,La2O3La2O2SLa2BeO5LaAlO3LaP5O14,La2O3,32090,La2O3,La2O3,La2O3,1992300t,2000500t,2003700t,2003199214,2003264%1999La2O31300t,20001450t,20031950t2003199950%,2003736%,La2O385%,La2O3,200099%La2O333/kg,200220/kg,200414/kg,,,La2O3,,La2O3,,La2O342090,La2O3,,,,CeO2Nd2O3La2O3,,La2O3,,:(1),;(2),;(3),;(4);;(5),:[1].()[M].:,1978.[2].()[M].,:,1995.[3].[M].1991.257276.[4].()[M].,:,1995.[5].[J].,2004,(10):2124.[6].[J].,1991,(1):6869.20028