聚铝溶液pH值及盐基度的相关性研究  

STUDIES OF THE INTERRELATIONS BETWEEN pH AND ALKALIZED DEGREE OF POLYALUMINUM AQUEOUS SOLUTION

作　　者：阮复昌[1] 莫炳禄[1] 徐国想[1] 公国庆[1] 卢燕玲[1] 

机构地区：[1]华南理工大学化学工程研究所

出　　处：《化学反应工程与工艺》1999年第1期25-30,51,共7页Chemical Reaction Engineering and Technology

基　　金：广东省自然科学基金

摘　　要：对聚铝溶液进行了ｐＨ值和盐基度的分析和估算，给出了聚铝溶液的极限ｐＨ值和极限盐基度与总溶解铝浓度的关系曲线。最终计算结果表明：在平衡条件下，聚铝溶液的ｐＨ值和盐基度具有相关性，即当其中一个参数发生变化时，另一个参数必然要发生相应的改变。对于Ａｌ２Ｏ３含量为１０％的标准聚铝溶液，其最大ｐＨ值为４．０７１，最高盐基度为８７．００％。The values of pH and the alkalized degree were analyzed and estimated for polyaluminum aqueous solution in this work. The effects of total dissolved aluminum on the limited value of pH and the limited alkalized degree were also discussed. The calculated results indicated that the pH value and the alkalized degree are closely related to those obtained from the equilibrium states. It was also found that once each of them changes, the other will inevitably take place corresponding changes; for the standard polyaluminum aqueous solution with 10 % of Al 2O 3 the maximum of pH values is 4.071, and the greatest alkalized degree is 87 %.

关 键 词：絮凝剂 聚铝溶液 PH值 盐基度 相关性 

分 类 号：O635.2[理学—高分子化学] TL991.22[理学—化学]