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KP谢益民 伍 红 赖燕明(,,510641) ,,、、()。,、;,。 ,()。,,,,,,。,,,,,[1,2]。,,,。(Eucalyptusviminalis)(Eucalyptusglobulus),,。1 1.1 (,691.9kg/m3)(18,618.4kg/m3)。1.2 ,5L,25%,(A.A.)11%～28%(Na2O),1∶4,H1029。(50～83)10ml,:25%,(A.A)12%～52%(Na2O),1∶10,170℃100min。1.3 Wiley,50～83。-(1∶2)1%NaOHKlasonTappi,,205nm,110l/g·cm,(Wise)。1.4 300g(O.D.)72%3ml20℃1h,4%,121℃1h,,HPLC:1998-02-09()“”·7·19989 ChinaPulp&Paper,。:(KOHpH8.5),:。1.5 Zeisel()[3]。1.6 -400mg0.5ml6ml2mol/L10ml,170℃2h,。,2mol/L,。2,。1mol/LpH2,3。,,,,4-()。,::Ov-101:250℃;:Split:180～250℃,3℃/min:FID,270℃:2 2.1 212。25%、21%～28%。18,24%,39.6%。,1825%、11%～14%,1812%,57.7%。,,18,。1 2 2,:1)2)3)4)2.2 ·8· 5。,,、。3,,18,36.6%,28.6%。8%。,18,12%,,,。3 4,18,44%,53%,9%。,20%,,,。,:,,(1∶4,1∶10),,,2;,,。4 2.3 1%NaOH,,,。,(ellagicacid)Ca2+、Mg2+,,,,[4]。,-(2∶1)1%NaOH。5,18,30.7%·9·19989 ChinaPulp&Paper,36.6%,,(“kino”)。,1820.2%(5),,,,28.6%。,。,18,10.5%(Na2O)。,8%。,1%NaOH,。,。5 2.4 1,1%NaOH。1%NaOH,。,,。,,,。,Bland[5],。,。1 %1%NaOHKlason3.822.870.121.56.127.60.814.577.920.35.025.31,7.8%。,2。。,。2 %38.69.20.6Trace0.548.941.111.50.50.40.453.9 :-2.5 。,。,/[6]。,。·10· 5,。,。 3,,3 /mmol·(lgK.L.)-1()/%K.L.0.711.672.3541.20.612.213.6249.4 :K.L.Klason,。/,2.35,3.62。,,NaOHNa2S。,。,,。:。3 3.1 18,,。3.2 ,。3.3 ,/。,。3.4 ()。3.5 ,。 本研究得到日本制纸(株)中央研究所松仓纪男所长、种田英孝博士和秦邦男顾问的悉心指导和帮助,同时还得到日本AOTS协会在经费上给予的大力支持,在此表示衷心的感谢。1 .エÅカリのパルプ.パ,1994;48(2):18—272 ..,1994:28—313 TappiStandT2m-60,TAPPITESTMETHOD,TappiPress,19604 ,,.エÅカリのガにおよほす.1972:26(12):20—295 BlandD.E.,MenshunM.Determinationoftotalligninandpolyphenolineucalyptwoods.Appita,1971;25(2):110—1156 SarkanenK.V.andLudwigC.H.Lignins:Occurrence,Formation,StructureandReaction.NewYork:Wiley-In-terscience,1971:65—73EffectofChemicalCompositionandWoodPropertyonKraftPulpingofEucalyptusXieYimin WuHong LaiYanming(StateKeyLab.ofPulpandPaperEngineering,SouthChinaUniversityofTechnology,Guangzhou,510641)ABSTRACT Inordertoinvestigatetheeffectofchemicalcomposition(Extractivescontent,ligninstructure,sugarcomponent)andbasicdensityofeucalyptuswoodsontheircharacteristicsinkraftpulping,twospecialeucalyptusspecieswereusedasrawmaterial,andcookingexperiment,chemicalandchromatographyanalyseswerecarriedoutinthisresearch.Theresultsshowedthatthemainfactorsaffectingpulpingcharacteristicsandpulpyieldweretheratioofcondensedstructureinlignin,extractivescontentandneutralsugarcontentaswell.Thebasicdensityofthewoodinfluencedthedosageofactivealkaliandpulpyieldonlytosomeextent.KEYWORDS eucalyptus,ligninstructrue,extractives,kraftpulping·11·19989 ChinaPulp&Paper