疏水缔合型絮凝剂的制备及性能研究  

Preparation of hydrophobic associating flocculant and its flocculation of suspensions

作　　者：刘孔怡 刘江辉 卢继雷 王忻怡 张晓云 

机构地区：[1]中国石油大学(华东)理学院,山东青岛266580

出　　处：《化学研究与应用》2017年第10期1483-1486,共4页Chemical Research and Application

基　　金：国家自然科学基金项目(51374230)资助;中央高校基本科研业务费专项资金项目(15CX05028A)资助

摘　　要：以环氧氯丙烷、乙二胺和十六烷基二甲基叔胺为原料,合成含有疏水长链的疏水缔合型絮凝剂PEDH,并用红外光谱对其结构进行表征。用高岭土悬浊液模拟污水,对合成的絮凝剂进行絮凝效果评价,选出合成的最佳物质的量配比为:环氧氯丙烷∶乙二胺∶十六烷基二甲基叔胺=5∶2∶2.7,并选用三乙烯四胺为交联剂,交联剂的含量为1.5wt%。与市售絮凝剂相比,合成的疏水缔合型絮凝剂具有制备条件温和、后处理简单、生产效率高,处理污水时用量少、絮凝效果好、性质稳定等优点。The hydrophobic associating flocculant PEDH was synthesized by using epichlorohydrin,ethylenediamine and N,N-dimethylhexadecylamine as raw materials,and it was characterized by FTIR.The kaolin suspensions were used as wastewater to evaluate flocculation effect of the PEDH.The results showed the optimal molar ratio of raw materials was：epichlorohydrin ∶ ethylenediamine∶ N,N-dimethylhexadecylamine=5∶2∶2.7,and 1.5 wt% triethylenetetramine as cross-linking reagent.Compared with commercial flocculants,the hydrophobic associating flocculant had the advantages of mild preparation condition,simple post-treatment,mass production,low dosage,high efficiency and stable performance.

关 键 词：疏水缔合聚合物 絮凝剂 高岭土污水 

分 类 号：O647.9[理学—物理化学]