常用有机膦酸盐静态阻垢性能对比实验研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,454000;2.,,100085;3.,215000),,pH,,,(ATMP)(HEDP)2221,2,42(PBTC)(NaPO3)615,80,;;ATMPHEDP,pH,;PBTC,PBTC,TQ085.412A167329108(2007)0220006205Comparisonofstaticscale2inhibitingpropertiesoftypicorgano2phosphonateXuHuashan1RenYufen1,2HeYuxiao1ZhengHongjuan3(1.CollegeofResourcesandEnvironment,HenanPolytechnicUniversity,Jiaozuo454000;2.NationalKeyLaboratoryofSystemsEcology,ResearchCenterforEco2EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085;3.SuzhouBranchCompany,BeijingZhongsouNetworkTechniqueLtd.,Suzhou215000)AbstractDuringtheusageoftheindustrialcoolingwater,astheconcentrationmultipleincreases,itenri2chesalkalinity,hardness,pHandtemperatureandscalesseriously.Polyphosphateandorgano2phosphonatearegoodcalciumscaleinhibitors.Butunderhightemperatureandhighlyenrichedconcentrationofcirculatingwater,notallorgano2phosphonatescanreachthesameefficiencyofscaleprevention.Thepapercalculatedthescalepre2ventingefficiencyofamino(trismethylenephosphonicacid)(ATMP),12hydroxyethylidene21,12diphosph2oni2cacid(HEDP),22phosphonobutane21,2,42tricarboxylicacid(PBTC)and(NaPO3)6whentheconcentrationmultiplesarefrom1to5,thetemperatureis80andtheirconsistenciesaredifferent.Theresultsshowthatbothorgano2phosphonateandpolyphosphatehavethethresholdeffect;organo2phosphonatescalingpreventingefficien2cyissuperiortopolyph2osphate;ATMP,andHEDPinlowenrichedmultiplehavehigherscalingpreventingrate,whilewiththeimprovingofhardness,alkalinityandpH,scalinginhibitionratedropsgreatly;scaleinhibitioneffi2ciencyofPBTCishigherthanotherorgano2phosphonateobviously,PBTCcanbeappliedtobroaderrangeofwaterquality,increasingthesecurityofsystematicoperation.Keywordscirculatingcoolingwater;organo2phosphonate;scalepreventing:863(2002AA601022):2006-02-20;:2006-05-12:(1977),,,E2mail:[e-mail]3,E2mail:[e-mail]2:,,,,,,CaCO3:CO2pH3,(ATMP)(HEDP)2221,2,42(PBTC,PBTCA)©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1]Ca2+,,[2]:(%)=C2-C0C1-C0:C2Ca2+;C1Ca2+;C0Ca2+1.2:A:CaCl22H2O,NaOHpH8.0,Ca2+180mg/L(CaCO3)B:NaHCO3,NaOHHClpH8.0,HCO-3138mg/L(CaCO3)50mLA50mLB100mL250mL(,),pH77.5,3040,,4,pH7.51,805h,0.45m,12,3,4,51,CaCl22H2ONaHCO312345,pH8165817581848194Ryznar(IR),111Table1WaterqualityofdifferentconcentrationtimespHCaCO3(mg/L)(mg/L)(mg/L)IRK=17.5190692408.73K=28.651801384806.45K=38.752702077205.67K=48.843602769605.14K=58.9445034512004.74:IR6,,IR,;IR6,,IR,;IR=6,,[3]22.11(1)4pH,ATMPHEDP(1mg/L)70%,5mg/L,5mg/L,;PBTCATMPHEDP,5mg/L,96%;(Na2PO3)63,2.5mg/L11Fig11Experimentalresultsof1concentrationtime7©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2),pH,ATMPHEDP(1mg/L),1,,,5mg/L,70%80%,5mg/L;PBTC(1mg/L)87%,PBTC,;(NaPO3)6(1mg/L),ATMPHEDPPBTC3,2.5mg/L,HEDP,22Fig12Experimentalresultsof2concentrationtimes3(3),pH,HEDP(1mg/L),60%,,;ATMP;PBTC2;(NaPO3)63,2.5mg/L,33Fig13Experimentalresultsof3concentrationtimes4(4),ATMP(1mg/L),1mg/L2.5mg/L,,;HEDP5mg/L10mg/L,;4PBTC;(NaPO3)62.5mg/L,44Fig14Experimentalresultsof4concentrationtimespH5(5),4ATMP4,HEDP,5mg/L10mg/L,;PBTC3,(5mg/L);(NaPO3)6,5mg/L,55Fig15Experimentalresultsof5concentrationtimes2.2468,(NaPO3)6ATMPHEDP3,1ATMP;PBTC293,,,,,[4][5],[4]CaCO38©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(NaPO3)6Fig16Experimentalresultsof(NaPO3)67ATMPFig17ExperimentalresultsofATMP8HEDPFig18ExperimentalresultsofHEDP,,,CaCO3,,[6]Ca2+Mg2+,(CO2-3SO2-4),Ca2+Mg2+,[3]9PBTCFig19ExperimentalresultsofPBTC,CO2-3,,,,,,,BuchrerReitemeier,,,,80,,,[7]CP,POP,,,,(NaPO3)6PO4,90%,5%10%,,,[8](NaPO3)6(NaPO3)6HEDP,Ca2+Mg2+Zn2+Fe2+,,9©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(PO3H2)(COOH),[9],3:HEDPATMP,PBTC,PBTCpH,(11.5%),,4(1)4,,(2)80,pH,PBTCHEDPATMP;HEDPATMP,pHATMPHEDP,PBTC;(NaPO3)6pH,,pHPBTC,HEDPATMP(3)PBTC,580,5mg/L,85%[1],,..,2003,31(7):1418[2].(PBTCA).,2001,29(4):2426[3]..:,2002.6061[4],,..,2001,2(1):2529[5].[].:,1998.7281[6]..,1984,(2):181[7]..:,2000.5859[8],..:,2002.381387[9]DavisR.V.,CarterP.W.,KaouathM.A.,etal.Theuseofmodernmethodsindevelopmentofcalciumcarbonateinhi2bitionsforcoolingwatersystems.ScaleFormationandInhi2bition.NewYork:PlenumPress,1995.334601