改性腐植酸膦基丙烯酸阻垢緩蝕劑的制備及性能研究

1、四川大學(xué)碩士學(xué)位論文改性腐植酸膦基丙烯酸阻垢緩蝕劑的制備及性能研究姓名：周達(dá)江申請學(xué)位級別：碩士專業(yè)：環(huán)境科學(xué)指導(dǎo)教師：謝家理20030512PreparationofQHA／ZPSasscalecorrosioninhibitorsandtheirperformanceMajorEnvironmentalScienceGraduateZhuuDajiangAdvisorXie3iaiWeadoptpeatwhichisveryrich

2、innatureasrawmaterial，atfirst，thepeatwasoxidatedbynitricacidtoincreasethecontentofhumicacid；thesecond，extractofhumicacidfromthepeatbyuseofsodiumhydrateandsodaWeproduceamidethroughtheactionofammoniawaterwithcarboxylInhumi

3、cacid，afterwardswecarryontheactionofaminomethylationandquaternaryammonation，accordinglyweobtainquaternaryhumicacid(QHA)TheoptimumconditionofpreparationofQHAwasthat，therefinedpowderofhumicacid：thickammoniawater(massratio)

4、=1：25；humicacidamide：formaldehyde：dimethylamine(massratio)=2：18：16；theproduceofaminomethylation：benzylchloride(massratio)=1：08Ordinarily，thequaternaryammonationdegreeofmodifiedhumicacidisbetween60％and80％thecorrosioninhib

5、itionofQHAisupto92％，andQHAhavehighefficiencyofbiocideaqueoussynthesisandpropertiesofphosphono—containingacrylicacid／maleicanhy蚍(ZPS)wassystematicallyinvestigatedMaleicanhydride，acrylicacidandsodiumhypophosphite，initiated

6、byammoniumpersulfate，wereusedasthefeedstockinthissyntheticreactionTheoptimumconditionsmldmaterialratioWaSSAA：MA=3：l(molratio)，sodiumhypophosphiteandinitiateagentweigh20％andl5％oftotalweight，reactiontemperature90弋：reaction