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420118MultipurposeUtilizationofMineralResourcesNo.4Aug.2011邓书平(,113001):(PDMDAAC),,:6g/L,pH4~10,40min,20,98%,,:;;;:X131.2:A:10006532(2011)04003803,,TN0.2mg/LTP0.02mg/L,,,[1],,,,,,1材料及方法1.1[J].MaterialsScienceandTechnology,2008,24(12):1438-1443.[16],.[J].,2004,22(2):197-200.[17],,,.[J].,1999,33(12):17-20.TechnologicalStudyonPreparationofCalciumCarbonateWhiskersbyUsingActiveLimeFENGXiaoping1,ZHANGZhengwen2,ZHAOTaotao1,WUZhaopeng2(WuhanUniversityofTechnology,Wuhan,Hube,iChina;2.WulongquanMineofWuhanIronandSteelCompany,Wuhan,Hube,iChina)Abstract:Calciumcarbonatewhiskerswerepreparedbymeansofcarbonationusingactivelimeasrawmaterials.Theeffectoftherationofmagnesiumtocalcium,reactiontemperature,stirringspeedandtheventilationofcarbondioxideonthesynthesisofcalciumcarbonatewhiskerswasstudied.Theresultshowsthatthereactiontimehasthebiggestinfluenceonthesynthesisofcalciumcarbonatewhiskers,thentheratioofmagnesiumtocalciumandtheventilationofcarbondioxide,andfinallythestirringspeed.Whentherationofmagnesiumtocalciumis2,thereactiontemperatureis80,thestirringspeedis100~130r/minandtheventilationofcarbondioxideis70~100mL/min,theuniformaragonitecalciumcarbonatewhiskerswiththelengthof25~30m,therationoflengthtodiameterabout28canbeobtained.Keywords:Aragonitecalciumcarbonate;Whisker;Activelime;Synthesistechnology:20110505:(1973-),,,,4:1.28h,3002h,1005%,702h,,,,()[2],45~5060min,,,48h,100,1.3GB11893-89[3]=(C-Ce)C100%C(mg/L)Ce(mg/L)2结果与讨论2.120pH,1000mL5mg/L,111,,,2.2pH20,9pH,,pH[4],22pH2,pH4~10,,pH10,2.320,pH7,,[5],333,,40min;,,40min2.420,pH7,71000mL,40min,44,6g/L,98%,0.1mg/L,(0.1mg/L),6g/L,98%~99%,6g/L39201143吸附机理初探,,600~800m2/g,,,,,,,,,PDMDAAC,,,,4结论1.,,2.6g/L,pH7,20,40min,98%3.,,,参考文献:[1].[J].,2010,38,(15):8154-8158.[2],,,.CTMAB-[J].,1997,16,(3):233-237.[3].[J].,2005,14,(5):66-69.[4],,,.[J].,2001,(4):10-14.[5],,,,.[J].,2004,(4):15-17.StudyonAdsorptionTreatmentofPhosphoruswithModifiedBentoniteDENGShuping(VocationalandTechnicalCollege,LiaoningUniversityofPetroleum&ChemicalTechnology,Fushun,Liaoning,China)Abstract:BentoniteismodifiedbymacromolecularflocculantPDMDAAC,cationicammoniumsaltandsulphuricacid.Thetreatmentcapacitytophosphoruswithmodifiedbentoniteisinvestigatedunderdifferentconditions.Atthesametime,thetreatmenteffectsoftheoriginalbentonite,acidmodifiedbentoniteandmodifiedbentoniteonthephosphorusremovalwerecompared.Theresultsshowthattheremovalrateofphosphoruscanbeover98%withthedosageofmodifiedbentonitebeing6g/L,pHvalue4~10,theadsorptiontimeof40minandreactiontemperatureat20.Thistechnologyhassuchadvantagesasgoodtreatmenteffec,teasyoperationandlowcos.tKeywords:Modifiedbentonite;Adsorption;Phosphorus;Sewage40