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34ResearchonCrystalStructureandCharacteristicofLanthanumOxide-ceriumOxideSystemJIANGYin-ju12ANWen-hu121.InnerMongoliaKeyLaboratoryofIntegratedExploitationofBayanOboMulti-MetalResourcesBaotou014010China2.SchoolofMaterialandMetallurgyInnerMongoliaUniversityofScienceandTechnologyBaotou014010ChinaAbstractLa2O3-CeO2withdifferentmolarratioofLatoCewerepreparedbythecoprecipitationmethod.ThecrystalstructuresofthesesampleswereanalyzedbyXRD.ThecompositionrangeofLa2O3-Ce2O3thatexistedsteadilywasdeter-minedbythehydrogenreductionexperimentofLa2O3-CeO2.ThecharacteristicsofLa2O3-CeO2convertingintohydroxidebythehydrothermalmethodwasstudied.TheresultsshowedthatwhenmolarratioofLatoCerangedfrom0.85to0.05La2O3-CeO2existedwithface-centredcubicstructurewhenthemolarratiowas0.90or0.95La2O3-CeO2existedwithanewstructureandwhenthemolarratiowasmorethan0.7La2O3-Ce2O3couldexiststeadily.La2O3-Ce2O3couldbeconvertedintoLaOH3-CeOH3bythehydrothermalmethod.Whenthemolarratiowas0.7thetransformationconditionwastougherthanotherssotheLa2O3-Ce2O3existedmoststeadily.Keywords∶lanthanumoxideceriumoxidestructure檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪殏殏殏殏hydrothermalmethod“”。。、。46
本文标题:包钢稀土高盐废水零排放处理取得成果
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