DMDAAC中有机胺杂质含量测定方法研究王会

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StudyonthedeterminationofthecontentoforganicamineimpuritiesinDMDAACWangHui1,JinXiaoxia1,SunJi1,HuXinggang2(1.CNOOCTianjinResearchandDesignInstituteofChemicalIndustry,Tianjin300131,China;2.TianjinZhengdaScience&TechnologyCo.,Ltd.,Tianjin300308,China)DMDAAC1,1,1,2(1.,300131;2.,300308)[](DMDAAC),DMDAAC、、、、、,DM-DAAC。,,DMDAAC。,,DMDAAC。[];;[]O656.3[]A[]1005-829X(2009)06-0059-03Abstract:Dimethyldiallyammoniumchloride(DMDAAC)isakindofwater-solublecationicmonomer,havingwideusage.Differentextentsofimpurities,suchas,dimethylamine,tertiaryamineandtheirsalts,allylchloride,allylalcohol,allylaldehydeandsodiumchloridearecontainedinitscommercialproduct.ThepolymerizationactivityofDMDAACcanbeaffectedbytheseimpurities.Thedeterminationoftheorganicamineimpuritycontentsisdevelopedbymeansofusingvaporpressurereductiondistillationprocessandinorganicacidabsorbent.Theresultindicatesthatthisisasimpleandeasymethod,andhasgoodparallelismandcomparability.ItalsocanbeusedforcomparingthequalityoftheDMDAACproduct.Keywords:dimethyldiallyammoniumchloride;organicamine;distillation(DMDAAC)。,,,〔1〕。DMDAAC〔2〕、、、、,、、、、,〔3-4〕。DMDAAC〔1-2〕:,DMDAAC;〔5〕,DMDAAC。〔9〕,(90%),,,;,,,,(<57%)。DMDAAC、pH、、NaCl。60%,、,NaCl〔2,6〕。DMDAAC、,、、、、。DMDAAC,DMDAAC,、DMDAAC。DMDAAC〔7〕,,。29620096IndustrialWaterTreatmentVol.29No.6Jun.,200959——2009-06,29(6)DMDAACDMDAAC。〔8〕,DMDAAC,,,,DMDAAC。,,DMDAAC,DMDAAC。11.1(1):———0.10g70mL,100mL;,c(HCl)=0.0500mol/L;,c(NaCl)=0.0400mol/L;,2g/L;,,。(2):7890A;SHB-。1。1.2(1):m1DMDAAC,,DM-DAAC35%~50%,2g/LpH10~11,m22g/LV2。(2):m1DMDAAC50mL,0.0001g,m2。1,。20~25mL100mL,30mL0.75mL(12)。50mL2g/LV2,。,,-0.09~-0.1MPa,,,,,,。60℃,,,20min,。2.5h,60~70mL,。(3):,,1min,,V。1.3(N%)=(V0-V)×c(NaOH)×14.01×1001000×m1:V0———NaOH,mL;V———NaOH,mL;c(NaOH)———NaOH,mol/L;14.01———,g/mol;m1———DMDAAC,g。22.1pHDMDAAC,。DMDAAC,,pH,。pH,1。pH。1,pH10,。pH,DMDAAC,。,pH10.0~11.0。2.2DMDAAC,,。,,。,11pHmg/LpH7.08.09.010.011.012.0120827835051852358022182693385055305893212283343522522578212277344515525582:530mg/L(N)。60——2009-06,29(6)[](1984—),2006(),。:022-26689146,E-mail:wanghui0023@126.com。[]2008-11-07,:DMDAAC,2。2:60~70℃2.0~2.5h,,。2.3,,,,。60℃,60℃,3。3,,,,,,。-0.1MPa。2.4、,,、,。,20g,DMDAAC35%~50%。2.5DMDAAC、,,4。4,DMDAAC,。(100mg/L),5%;,,。3DMDAAC(PDA)(DMDAAC)(AM),、、、、。PDA、,DMDAACPDA,DMDAACPDA。DMDAACPDA,5。5:DMDAAC,。,DMDAACPDA、。4,:pH10~11、(60±1)℃、-0.1MPa、20g。[][1],,,.(DMDAAC)[J].,2003,44(9):496-499.[2],.[J].,1999,20(1):87-90.[3],,,.DMDAAC[J].,1997,14(2):159-161.[4],,,.PDA[J].,2008,16(7):18-21.[5].[J].,2003,18(1):56-58.[6],,,.[J].,2000,17(2):184-187.[7]HuangSS.Evaluationofchemicalstructuralheterogeneityofcationicacrylamidecopolymersbyhigh-performanceliquidchro-matography[J].J.Chromatogr.,1991,536(1/2):203-209.[8].[J].,2006,25(6):93-95.[9],,,.[J].,2006,25(1):41-44.:530mg/L(N)。2mg/L/℃4050556070801430470492518522470244147648351052245134334664865275304844354714875185254683mg/L/MPa-0.06-0.07-0.08-0.09-0.1-0.1()10020244851831020019145551032230020145052530500198451518312:530mg/L(N)。41#2#3#4#5#6#7#8#(N)/(mg·L-1)5188494404820580(N)/(mg·L-1)5309514705122600/%2.2611.13.926.3805.889.093.3351#2#3#4#5#6#7#8#/(N)/(mg·L-1)5188494404820580/%83.198.593.393.799.093.897.781.2/10410.115.512.513.118.314.915.59.261——

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