螺旋通道型旋轉床超重力法制備納米功能材料.pdf

1、湘潭大學碩士學位論文螺旋通道型旋轉床超重力法制備納米功能材料姓名：李闖申請學位級別：碩士專業(yè)：化學工程指導教師：周繼承20080509IIAbstractNanomaterialshaveimptantappliedvalueinnationaldefensemedicinemetallurgyelectronchemicalengineeringenvironmentalprotectionsoon.Nowadaysnanometer

2、sciencetechnologyarethemostcuspidatetechnicinthewld.Intensofyearsadvancedcountriesalwaysputnanomaterialsaskeystonehotspotofscienceresearchtechnicdevelopmentprogramme.PreparationofNanomaterialwasthekeyceofnanotechnology.T

3、heproductionapplicationofnanomaterialjustwasunderwayinChina.Afewofthemcanbeproduced.SuchasTiO2、ZnO、CaCO3soon.Industryproductionapplicationhadfardistancecomparedwithoverseas.Conductingindustryproductionsomekeyproblemsmust

4、besolved.Thefactsofinfluncingqualityindexpracticalusingwerecontrolofscale、shapedistributioncontrolseparationofconglomerationpuritystabilityoftechnologyrepetitionofqualityexcepttechnologiesequipments.Therefemethodtechnico

5、fpreparationofnanofunctionalmaterialwastheprimaryproblem.Chemicalprecipitationmethodwasoneofmethodsofpreparingnanofunctionalmaterials.MildreactiveconditionslowcostwereadvantagesStiringtankreactwasusedastheequipmentofthis

6、method.Asymmetrygranularitydistributionbulkygrainweakrepetitionofqualityhardindustryenlargingweredisadvantages.Reactbyhighgravitywithrotatingbedwithhellixchannels(RBHC)conqueredlimitationofroutinegravity.Itsmasstransferr

7、arewas1~2derofmagnitudehigherthanstirringtankreact.Inthispapernanofunctionalmaterialswerepreparedbyhighgravitysynthesismethod.NewtechnologiestechnicsofpreparationofnanofunctionalmaterialsbyhighgravitysynthesismethodwithR

8、otatingBedWithHelixchannelswereresearcheddeveloped.InthispaperRBHCwasused.Technologiestechnicsofpreparationofpseudoboehmitesilicondoxidebyhighgravitysynthesismethodweresystematicallyresearched.Largespecificareapevolumena

9、nofibrouspseudoboehmitewasreceivedinlabaty.Theproductpreparedinindustryenlargingexperimentofplantwashighpurityevengranularityunifmshapegoodrepetition.Azeotropicdistillationavoidedagglomerationofparticlefarthestimprovedsp