螺旋通道型旋轉(zhuǎn)床超重力法制備納米功能材料.pdf

1、湘潭大學(xué)碩士學(xué)位論文螺旋通道型旋轉(zhuǎn)床超重力法制備納米功能材料姓名：李闖申請學(xué)位級別：碩士專業(yè)：化學(xué)工程指導(dǎo)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