聚二甲基二烯丙基氯化铵的合成及水处理絮凝效能研究

文章编号:025322468(2000)20220168205　　　中图分类号:X703　　　文献标识码:A聚二甲基二烯丙基氯化铵的合成及水处理絮凝效能研究常　青,陈　野,韩相恩,田秉晖　(兰州铁道学院环境工程系,730070)摘要:在强碱性条件下由烯丙基氯和二甲胺反应,先生成二甲基一烯丙基叔胺,分离后再次加入烯丙基氯,于丙酮介质中结晶析出二甲基二烯丙基氯化铵,产率达75%,以复合引发剂引发聚合,得分子量9914万的高聚物.絮凝实验证明,最佳投药量一般小于1ppm,如果与铝盐配合使用,可使浊水达更高的澄清度.关键词:聚二甲基二烯丙基氯化铵;合成;絮凝;水处理Studyonsynthesisandflocculationefficiencyofpolydimethyldiall2ylammoniumchlorideCHANGQing,CHENYe,HANXiangen,TIANBinghui　(DepartmentofEnvironmentalEngineeringLanzhouRail2wayCollege,Lanzhou,Gansu730070)Abstract:Bythereactionofallylchloridewithdimethylammoniuminthesolutionofstrongalkali,dimethylally2lammonium(tertiaryamine)formed.Thetertiaryaminewasseparatedandaddedalongwithallylchloridetoacetone,thenthedimethyldiallylammoniumcheoridecrystallizedout.Therateofoutputwas75%.Themonomerswerethenpolymerizedinthepresenceofacompositeinitiator,themolecularweightoftheobtainedpolymeris9914×104.Theoptimumdosageinjartestwasbelow1ppm.IfthepolymerisusedalongwithAl2(SO4)3asaflocculantforwatertreatment,higherefficiencyoffloccula