Study and Development on the Organic Cationic Flocculant Zheng Huaili, Shu Xingwu (Faculty of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044) Abstract At present, the organic cationic polymer flocculants have been received more and more concerns from scientists and technologists extensively, the remark able progresses has been obtained. The commentary and introduction on researching development and application of the cationic organic flocculants at home and abroad have been introduced in this article, including the graft copolymerization of cationic polyacrylamide, hydroxyl etherification, variety of two alkenes two alkyl halogenated ammonium, the reaction product of epichhydin and amine, etc. Especially,the synthetic nonpoisonous cationic polymer flocculants and the modified cationic polymer flocculants from natural polymer such as starch in recent years are summarized and discusseed. Key words Organic flocculant, Cationic flocculant, High polymer flocculants 有机阳离子高分子絮凝剂 郑怀礼 舒型武 (重庆大学化学化工学院 重庆 400045) 摘要 近年来,有机阳离子高分子絮凝剂得到国内外学者的广泛重视。它的研究、开发、应用都取得了显著进展。本文对此进行评述和介绍，内容涉及阳离子型聚丙烯酰胺接枝共聚物、羟基醚化类、二烷基二烯丙基卤化铵类和环氧氯丙烷与胺反应物，特别是近年来淀粉等天然高分子改性阳离子型絮凝剂和人工合成的无毒有机阳离子高分子絮凝剂。 关键词 有机絮凝剂 阳离子型絮凝剂 高分子絮凝剂 郑怀礼 男，44岁，教授，博士，主要从事为絮凝剂的制备与应用的研究。 重庆市应用基础研究基金项目(渝科委计[1999]43号) 2001-07-09收稿，2001-10-10修回 (PDF全文下载c02012)