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23220043JournalofWuxiUniversityofLightIndustryVol.23No.2Mar.2004:10092038X(2004)0220067204:2003209202;:2003210227.:(19462),,,.1,2,3(1.,214036;2.,200237;3.,200237):,.,V()V()V()=0.61.010,60,60min,100mL6g,82%.:;;:TQ073:ARetrievingGlucurolactonefromtheWasteLiquidbytheSecondLactonizationGUOYao2ji1,WANGXiao2feng2,TANGLi2hua3(1.SchoolofBiotechnology,SouthernYangtzeUniversity,Wuxi214036,China;2.CollegeofAdultEducationofEastChinaUniversityofScienceandTechnology,Shanghai200237,China;3.CollegeofChemicalEngineeringofEastChinaUniversityofScienceandTechnology,Shanghai200237,China)Abstract:Themainreasonswhythestarch,themiddleandfinalproductsrunofffromthewasteliquidbytheclassicaltechnologywerestudied.Inthisarticle,firstofall,thefeasibilityofretrievingglucurolactonefromthewasteliquidbythesecondlactonizationwasstudied.Whenthetemperaturewas60,andvolumeratiosofnitricacidtoaceticacidandtowasteliquidwere0.61.010,abouteightgramsofdistillingmaterialswereobtainedfrom100mLofthewasteliquid,withthepurityof82%.Keywords:glucurolactone,thewasteliquid,thesecondlactonization(Glucurolactone),,,[1].,,,,.,;;.,10%12%[2],.COD,,.,,.,,,.,,[3];,,[2];,[3].,,,,,50%.,2[4].,[5],[6],,.,,85%[2],,,,.,,,,.,,,;,.11.1:().1.1.1(),(),(),(),(),(),2,.1.1.278HW21:;8022:;:;UV21100:.1.21.2.1:yy,,,;,-1368h,,,.3,40;.1.2.2:2[7];:[7];:[7];:[7];(COD):[8];:[8];:[9].22.12,,1.1Tab.1Theresultofsalvagingandcontrastsdistinguishandthecontentofdetermining/%82951,,,.2.22.2Tab.2Thetestingoftheabstractionandthereferencesma2terialphysicalcharacter/168174[]25D+19.30+19.802,,.2.31.8623:Abs;:;:2.0nma.:Abs;:;:2.0nmb.12Fig.1Theultravioletspectrumoftwosamples1,2,225nm,.2.4()2.100mL;V()V()=1.010,602Fig.2Theeffectofnitricacidfeedontheamountofglucurolactonesextraction2,.,,..,10%1,pH3.52.5;100,2h60%40%[10].,,..2,,V()V()=0.61.0,,1.010,.,V()V()=0.61.0.2.5,,()3.100mL;V()V()=0.610,603Fig.3Theeffectofaceticacidfeedontheamountofglucurolactonesextraction3,,,.,,1.0101.210,.,1.010().,,.2.62,3,,,.,,.,,962:.,,,.,60,0.61.010,6090min,,,,,.2.74.100mL;V()V()V()=0.61.010;60min4Fig.4Theeffectoftemperatureontheamountofglu2curolactonesextraction4,,40,,40,,6070,;,,.,,,,.60[2],,,.,,60.2.860,0.61.010,60min,3.3Tab.3Thecomparisonofphysicalandchemicalcharacterofwasteliquidbeforeandaftertreatment/mL100610106()26800340COD/(mg/L)2.3101051.07031.0491061.887105:31g1.07gCOD[11].3:26800340,COD3.432104mg2.000104mg,COD42%.COD1.887105mg/L,.,.,-.,,.,[4].3,.,,0.61.010,60,60min,100mL6g,82%,.2,.,.:[1].[M].:,2001.616.[2],,.[J].,2003,23(1):132-135.[3],.[J].,1997,17(5):870.(75)0723,10/mL,.2.4.33614d,,.3,,.1),:120,9min-25min-10min,.2).3).:[1].[M].:,1993.220-221.[2],.[M]..:,1986.1-6.[3],.[M].:,1993.2-13.[4],.[J].,1986,(6):20-22.[5].[J].,2001,(5):69-70.[6].[J].,1992,(5):10-11.[7],,.[M].:,1994.[8],.[M].:,1990.253-298.(:)(70)[4].[J].,1989,(137):31.[5],,,.[J].,1989,10(6):43-46.[6],,,.[J].,2000,26(1):53-55[7].(1995)[M].:,1995.[8],,.()[M].:,1996.78-79.[9].[M].:,1991.6.[10]HardeggerS.Preparationofglucurolactone[J].Biochem,1950,33:337.[11],.[M].:,1986.218-219.(:)572: