聚合氯化铝形态分布、分析和控制研究进展

Species distribution,dnalysis and control of polyaluminum chloride

Al3 + 发生水解和聚合反应 ,形成多种形态。关于其形态分布与结构 ,目前存在两种观点 ,即六元环连续分布模式和聚十三铝模式。形态分析的方法 ,主要有NMR法、吸光光度法等。影响形态分布的因素 ,主要有反应物浓度、碱化度、碱液加入速度、加碱方式、混合状况等。

There are two viewpoints about the species distribution of polyaluminum chloride.One is the hexagonal ring model,and the other is the Al_(13) model.The species are differentiated by NMR,colorimetric techniques,etc.Species distribution is influenced by the synthetic conditions,such as the concentrations,the base injection rate,mixing,ripening and so on.The advance in the studies of species distribution,analysis and control are discussed in this paper.