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聚硅氯化铝(PASC)的形态分布及转化规律:Ⅰ.Al—Ferron逐时络合比色?…
引用本文:高宝玉,王占生.聚硅氯化铝(PASC)的形态分布及转化规律:Ⅰ.Al—Ferron逐时络合比色?…[J].环境化学,2000,19(1):1-7.
作者姓名:高宝玉  王占生
作者单位:[1]山东大学环境工程系 [2]清华大学环境科学与工程系
基金项目:中国科学院资助项目,科技部专项基金,59878036,96-909-03-02,,
摘    要:采用Al-Ferron逐时络合比色法比较研究了PASC与PAC中铝的形态分布及转化规律。实际结果表明,在PASC中,由于聚硅酸与铝水解聚合产物的相互作用,使得铝的水解聚合形态分布及转化情况发生了变化。

关 键 词:聚硅氯化铝  比色法  形态分布  絮凝剂

STUDY ON THE SPECIES DISTRIBUTION AND TRANSFORMATION OF POLYALUMINUM SILICATE CHLORIDE (PASC) I . THE SPECIES DISTRIBUTION AND TRANSFORMATION OF PASC DETERMINED BY Al-FERRON COMPLEXATION TIMED SPECTROPHOTOMETRIC METHOD
Gao Baoyu,Yue Qinyan,Wang Zhansheng,Tang Hongxiao.STUDY ON THE SPECIES DISTRIBUTION AND TRANSFORMATION OF POLYALUMINUM SILICATE CHLORIDE (PASC) I . THE SPECIES DISTRIBUTION AND TRANSFORMATION OF PASC DETERMINED BY Al-FERRON COMPLEXATION TIMED SPECTROPHOTOMETRIC METHOD[J].Environmental Chemistry,2000,19(1):1-7.
Authors:Gao Baoyu  Yue Qinyan  Wang Zhansheng  Tang Hongxiao
Abstract:The species distribution and the transformation of PASC were investigated and compared with those of PAG by Al-Ferron complexation timed spectrophotometric method. The experimental results show that species distribution and the transformation of PASC are different from those of PAC, owing to the interaction between polysilicic acid and hydrolyzed aluminum species. At the same basicity (B), the content of Ala and Alb in PASC is less than that in PAC, otherwise, the content of Alc in PASC is more than that in PAC. In comparison with PASC prepared by copolymerization technique, PASC prepared by composite technique is characterized by having more Ala and Alb, but less Alc, at the same B value and Al/Si molar ratio, which means that the species distribution of PASC is affected by the preparation technique.
Keywords:polyaluminum silicate chloride ( PASC)  Al-Ferron complexation timed spec-trophotometric method  species distribution  
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