针对高铝粉煤灰综合利用中淘洗纯化氯化铝的影响因素进行研究，模拟淘洗工艺，分析Na⁺、K⁺、Mg²⁺、P⁵⁺在分离纯化过程中与六水氯化铝饱和溶液形成溶解平衡。结果表明，较优操作工艺条件为：固液比为1：1.1、洗涤次数2次、洗液温度为70℃，此时，六水氯化铝中杂质去除率可达到91.51%左右，对应含量达到0.05%以下，该实验结果为高铝粉煤灰的综合利用提供了数据基础。

The factors that influence the purification of aluminum chloride in the comprehensive utilization of high alumina fly ash are studied.The purification process is stimulated and the dissolution equilibrium between Na⁺,K⁺,Mg²⁺,P⁵⁺ and the saturated solution of aluminum chloride hexahydrate during the purification process is analyzed.The optimized operation conditions are found as follows:the ratio of solid to solution is 1:1.1,washing proves is performed by 2 times and washing temperature is at 70℃.Under these conditions,the removal rate of impurities from aluminum chloride hexahydrate can reach around 91.51%,and the corresponding contents left in aluminum chloride hexahydrate can be below 0.05%.The experimental results provide a data basis for the comprehensive utilization of high alumina fly ash.

张梓越(1993-),女,硕士研究生,研究方向为工业污水处理,zifenglingzhiyue1@163.com