聚硅氯化铝混凝剂的形态及带电特性研究

以ＡｌＣｌ３·６Ｈ２Ｏ、ＮａＯＨ、盐酸和水玻璃为原料制备了不同碱化度（Ｂ）及不同Ｓｉ／Ａｌ摩尔比的系列聚硅氯化铝混凝剂（ＰＡＳＣ），采用Ａｌ－Ｆｅｒｒｏｎ逐时络合比色法和微电泳技术研究了ＰＡＳＣ中铝的水解产物形态分布及铝的水解沉淀物的带电特性，考察了Ｂ及Ｓｉ／Ａｌ摩尔比对ＰＡＳＣ中铝水解产物形态分布及带电特性的影响情况，并与聚合氯化铝（ＰＡＣ）进行了比较，实验结果表明，Ｂ对ＰＡＳＣ的形态分布有较大

Study on the Aluminum Species and Electrophoresis Characteristics of Polyaluminum Silicate Chloride

A series of polyaluminum silicate chloride (PASC),which has different basicities(B)and Si/Al molar ratio,was prepared by using AlCl₃·6H₂O,NaOH,HCl and water glass as raw materials.The aluminum species and the electrophoresis characteristics of PASC were studied by using Al-Ferron timed complex colorimetric method and electrophoretic mobility method respectively.The effects of B and Si/Al molar ratio on the distribution of aluminum species and the electrophoresis characteristics of PASC were investigated.The experimental results show that B has a great effect on the distribution of aluminum species of PASC;Si/Al molar ratio has some effect on the distribution of aluminum species of PASC.B and Si/Al molar ratio has somewhat effect on the electrophoresis characteristics of PASC.With the increase of B value and Si/Al molar ratio,the isoelectric point of PASC moves toward the acidic side,compared with polyaluminum chloride(PAC).