低磷型膦酰基羧酸聚合物的合成及性能研究孟宁

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、、、pH。、、pH、、、[1-2]。MA、2--2--AMPS、。11.12--2-。723pHs-4DF-101SRe-52cVICTOR-22。1.2、、MA75℃AMPS+1h2.5h30%。[3]。1.3[4]CaCO3Ca2+250mg·L-1HCO3-250mg·L-1pH980℃10hCa2+CaCO3η=ρ1-ρ0250-ρ0×100%1ηρ1ρ0Ca2+。Ca3(PO4)2ρPO43-=5mg·L-1ρCa2+=250mg·L-1Zn(OH)2ρZn2+=5mg·L-1ρCa2+=250mg·L-1ρHCO3-=250mg·L-1。730070MA、2--2--AMPS。、、。mMAmAMPS=346.67%12.5%75℃3.5h、。TQ085+.4A1000-3770(2009)09-045-032009-02-181984-13893408806E-mailningmengflying@163.comE-maillishweng@mail.lzjtu.cn35920099TECHNOLOGYOFWATERTREATMENTVol.35No.9Sep.,200945DOI:10.16796/j.cnki.1000-3770.2009.09.01522.1mMAmAMPS=3410%5%3.5h1。175℃~80℃。。75℃~80℃[5-7]。2.2MA/AMPSMA/AMPS2。2mMAmAMPS=34。2.33。。36.67%。2.44。。4Ca3(PO4)2、Zn(OH)212.5%。2.55。53.5h。2.6HPMA、HEDPPBTCA4、1。2468101214167880828486889092949698100 3Fig.3Effectofinitiatordosageonscaleinhibitingefficiency55606570758085909510030405060708090100 1Fig.1Effectoftemperatureonscaleinhibitingefficiency2:43:44:44:34:20102030405060708090100m(MA):m(AMPS)2mMAmAMPSFig.2Effectofm(MA):m(AMPS)onscaleinhibitingefficiency468101214165060708090100 4Fig.4EffectofNaH2PO2dosageonscaleinhibitingefficiency35946/mg·L-1HPMAHEDPPBTCA2.551015202.551015202.551015202.5510152066.5784.7593.6198.3710052.3468.4984.6389.2690.8461.1376.3881.6983.1283.4666.7285.9092.4398.2510039.6445.3681.7395.4210025.4329.8634.5237.2342.2917.2324.6129.6436.6839.7629.6137.5641.2543.3145.8643.7264.5378.8288.2790.7422.1127.8436.4237.0336.9726.0832.2739.4643.9644.2823.5429.8335.5937.1237.23/%CaCO3Ca3(PO4)2Zn(OH)214Table1Scaleinhibitingefficiencyoffouragents14PBTCAHEDPHPMA3“”10mg·L-1。2.7IR、、C=CC=C。3AMPS。75℃~80℃mMAmAMPS=346.67%12.5%3.5h。PBTCAHEDPHPMAPBTCA、HEDPHPMA。[1].[M].:,2004:169-170.[2]LawrenceLShya,YorktownHeightsNY.Terpolymers:US,5292449[P].1994-03-08.[3],,.[J].,2000,17(2):66-68.[4].[S].:,1993:371-382.[5],,.[J].,2002,22(8):14-15.[6],,.[J].,2003,3:172-174.[7].[M].:,2004:20-40.SYNTHESISOFPHOSPHONOCARBOXYLICACIDCOPOLYMERWITHLOWPHOSPHORANDITSPROPERTYMengNing,LiShiweng,WangFei(SchoolofChemicalandBiologicalEngineering,LanzhouJiaotongUniversity,Lanzhou730070,China)Abstract:Aphosphonocarboxylicacidcotelomerwaspreparedfrommaleicanhydride(MA),2-acrylamido-2-methylpropane(AMPS),NaH2PO2and(NH4)2S2O8.Thepolymerizationwasinitiatedinanaqueoussolution.Factorsaffectingthescaleinhibitingefficiencywerediscussed,suchasreactiontemperature,theratioofmonomersandtheamountofinitiator.Theoptimalsyntheticconditionswere:m(MA):m(AMPS)=3:4,concentrationof(NH4)2S2O8=6.67%,concentrationofNaH2PO2=12.5%,reactiontemperature75℃andreactiontime3.5hours.ThentheproductshowedquitegoodeffectonreducingscaledepositionsofCaCO3,Ca3(PO4)2andZn(OH)2.Keywords:lowphosphor;phosphonocarboxylicacid;systhesis;scaleinhibition1.52.02.53.03.54.04.55.05.56.06.58486889092949698100 h5Fig.5Effectofreactingtimeonscaleinhibitingefficiency47

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