直接電脫氧法由ZrO-,2-制備金屬Zr的研究.pdf

1、山東理工大學碩士學位論文直接電脫氧法由ZrO制備金屬Zr的研究姓名：郭春芳申請學位級別：碩士專業(yè)：應用化學指導教師：董云會20070210山東理工大學碩：I：學位論文AbstractAbstractFirstlythedomesticandforeigndevelopmentofDirectElectrOdeOxidatiOnwasintroducedbriefly，especiallyappliedinpreparingTifromT

2、i02Zrhasbeenusedinextensivefieldsbecauseofitsgoodproperties，suchashighmeltingpoint，corrosionresistant，smallthermalneutronadsorptionandoutstandingmechanicalperformance，thuspraisedas”oneofthemostfuturematerialinthe2lstcent

3、ury”Buttheexistingproductionprocessesarecomplex，expensive，energyintensiveandprobablypollutingTherefor，itishighlydesirabletodeviseasimple，low—costandenvironmentallysoundprocessinordertothemeetincreasingdemandsforZranditsa

4、lloysSecondly，basedonthetheoryofDirectEleetrodeoxidation，theprocesswasusedteducesolidZr02toZrSeveralmainfactorswereinvestigatedinordertoexplorethebestsynthesisconditionTheresultsindicatedthatthebestconditionwasfollowed：C

5、aCl2：NaCIsystem(7：3)，45pmZr02granularity，16MPapressure，312mmthickness，1000X3sinteringtemperature，800“Celectrolysistemperatureandabout12helectrolysistimeBesides，theproductgasindicatedthattherewasC12intheinitialstagebut02、

6、COandC02werestillmainlygasesinthewholeelectrolysisprocessThirdly，directelectrodeoxidationofZr02Ni203toZrNialloywasstudiedpreliminarilyunderthegivenconditionTheexperimentalresultsshowedthatZrNialloycouldaccouutforabout78％