铝型材废渣中铝溶出与制备聚合氯化铝铁

发布时间：2018-05-03 00:13

  本文选题：铝型材废渣 + 酸洗废水　； 参考：《非金属矿》2016年06期

【摘要】：以铝型材废渣和酸洗废水为原料制备聚合氯化铝铁。考察了氢氧化钠碱液浓度、溶出时间和溶出温度对铝溶出效果的影响,采用碱溶法溶出铝型材废渣中铝的溶出条件为:氢氧化钠碱液浓度4 mol/L,溶出温度60℃、溶出时间3 h,铝溶出率可达到87.6%。铝溶出液与酸洗废水聚合最佳反应条件为:p H值为3,聚合反应温度为25℃,搅拌反应时间为2 h,静置熟化时间为18 h。制备的聚合氯化铝铁中铝与铁的质量比为3∶1。
[Abstract]:Polyaluminium ferric chloride was prepared from aluminum waste residue and pickling wastewater. The effects of alkali concentration of sodium hydroxide, time and temperature of dissolution on the dissolution of aluminum were investigated. The dissolution conditions of aluminum from aluminum profile waste residue by alkali dissolution were as follows: the concentration of sodium hydroxide alkali solution was 4 mol / L, and the dissolution temperature was 60 鈩，

本文编号：1836076