α－Fe_2O_3溶胶在羟基羧酸中的吸附络合絮凝  

Hydroxylated Acid Complex Agents and Adsorption Coagulation

作　　者：吕彤[1] 张玉亭[1] 

机构地区：[1]天津纺织工学院材料系

出　　处：《纺织高校基础科学学报》1996年第3期218-221,共4页Basic Sciences Journal of Textile Universities

基　　金：国家自然科学基金

摘　　要：通过α－Ｆｅ２Ｏ３单分散溶胶在不同羟基羧酸中的絮凝－稳定情况阐述了该类絮凝剂对α－Ｆｅ２Ｏ３的絮凝特点：羟基酸絮凝剂使α－Ｆｅ２Ｏ３单分散溶胶发生絮凝和再稳定的机理不同于一般电解质，属于吸附络合絮凝．絮凝能力因絮凝剂的结构差异而不同，絮凝－稳定性均受体系中絮凝剂浓度及ｐＨ值的制约．The mechanism and different abilities of several hydroxylated acids on coagulation monodispersed hematite sols are illustrated by the means of the tests. The characters are the mechanism of these agents on the coagulation and restabilization of the sols belongs to complex coagulation, which is different from that of normal electrolytes. Different coagulation abilition of the agents are caused by their structures and concentration of the agents and pH values are the most important factors which affect the coagulation and restability of the sols.

关 键 词：羟基羧酸 络合吸附 配位体 溶胶 

分 类 号：O648[理学—物理化学] O623.65[理学—化学]