新型絮凝剂聚合氯化铝钙中铝形态表征及钙含量测定  

Characteristic of Al Conformation and Determination of Ca Content of the New Flocculant-PACC

作　　者：何丽莉[1] 王承智[1] 

机构地区：[1]辽阳职业技术学院,辽阳111004

出　　处：《环境保护科学》2007年第1期54-55,65,共3页Environmental Protection Science

摘　　要：以Al2O3和CaCO3为原料经高温焙烧酸溶制备工艺合成新型高效絮凝剂——聚合氯化铝钙。采用Al-Ferron逐时络和比色法研究产品中的铝形态;络合滴定法研究钙含量。结果表明:焙烧工艺对钙含量的影响较大,酸溶工艺对钙含量的影响较小。在最佳配比条件下,生成的Alb为最佳;焙烧温度提高Ala、Alc含量减小,Alb含量增大;增长酸溶反应时间Alb含量减少;增加酸用量,Ala、Alc含量减少,Alb含量增大。Using Al2O3 and CaCO2 through high temperature bake and sour solution can get the new flocculant-PACC. This paper researches the form of ahtminium and calcium in the new flocculant. Baking technique can influence on the aluminium and calcium form. Acid dissolution only can influence the aluminium form and has little influence on the calcium form. Under the optimum conditions, the producted Alb is the best. Increasing bake temperature, the contents of Ala, Alc, decrease, while Alb increases. Increasing acid dissolution time, the content of Alb decreases. Increasing acid quantity, the contents of Ala, Alc decrease, while Alb increases.

关 键 词：新型絮凝剂 聚合氯化铝钙 铝形态 钙含量 

分 类 号：X741[环境科学与工程—环境工程]