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《粉煤灰合成沸石的研究》由會員上傳分享，免費在線閱讀，更多相關內容在學術論文-天天文庫。
1、山東輕工業(yè)學院碩士學位論文粉煤灰合成沸石的研究姓名：劉艷申請學位級別：碩士專業(yè)：應用化學指導教師：邢存章20080610ABSTRACTAhugeamountofcoalflyash(CFA)isdischargedfromelectricpowerplantsthroughouttheworldeveryyear．Themajorapplicationofthecoalflyashistheuseforcementorconcretemanufacturing．However，thisapplicationiSlimited
2、withinthedemandofthebuildingrequirements．Recently，zeolitesynthesisfromcoalflyashhasbeenreceivingmoreaRention．IIlthisstudy，severalzeolitessuchaszeoliteNaP1．zeoliteNaAandzeoliteNaXweresynthesizedbyconvertionalhydrothermalmethodandmicrowavesupplementmulti—stagesynthesi
3、stechnology．Theeffectsofhydrothermalalkalineconditionsandadditivesonthecationexchangecapacity(CEC)valuesofzeoliteswereinvestigated．TheeffectofSi／A1molarratioofthereactantsonthetypeofzeolitewasalsodiscussed．Themajorconclusionsare：(1)TheCECvaluesofzeolitesweregreatlyd
4、ependentonthehydrothermalconditionssuchasreactivetemperature，reactivetime，liquid／solidratioandtheconcentrationofsodiumhydroxide．Theoptimalconditionsforzeolitesynthesisbvconvertionalmethodwerefoundtobe120℃oftemperature，6hoftime，8．0mL／gofliquid／solid，2mol／LofNaOH．TheC
5、ECvaluesofNaP1，NaAandNaXare175．9mmol／1009，163．8mmol／1009and178．3mmol／1009，respectively．(2)TheCECvaluesofzeoliteproductswereimprovedremarkablybytheadditivessuchasNaF，cetyltrimethylammoniumbromide(CTAB)and95％ethan01．(3)ThetypeoftheproductsisdecidedbytheSi／A1molarratio
6、ofthecoalflyash．whichcanbeadjustedbyadditionofNaAl02．(4)Themicrowavesupplementmulti-stagesynthesistechnologyplaysanimportantroleinreducingtheoverallsynthesiswhilemaintainingahighdegreeofCECvaluefortheproducts．Thetypicalmulti-stagesynthesisprocedureis：themixedsolutio
7、nwastreatedundermicrowavesystemat80℃for20rainatthefirststep．andthentothesecondstepunderconventionalsystemat120℃for2h．intheendundermicrowavesystemat100℃for40rain．Keywords：coalflyash；zeolite；synthesis；additive；microwaveVI學位論文獨創(chuàng)性聲明本人聲明，所呈交的學位論文系在導師指導下本人獨立完成的研究成果。文中引用他人
8、的成果，均已做出明確標注或得到許可。論文內容未包含法律意義上已屬于他人的任何形式的研究成果，也不包含本人已用于其他學位申請的論文或成果，與我一同工作的同志對本研究所做的任何貢獻均已在論文中作了明確的說明并表示謝意。學位論文知識產權權屬聲明本人在導師指導下所完成的論文及相關的職
