响应曲面法优化锌阳极泥还原浸出的工艺研究

摘要

Reductive leaching experiments of zinc anode slime were performed by using glucose as reductant.The effects of the mass of glucose,the additive amount of sulfuric acid and leaching temperature on the leaching ratio of Mn and Pb were investigated using response surface methodology for optimal design and analysis.Optimal process parameters on Mn and Pb from zinc anode slime and the order polynomial equation of model were obtained.The optimal condition was as follows:mass of glucose 3.5 g,amount of sulfuric acid 16 g,leaching temperature of 90 ℃.The results show that the theoretical leaching ratio of Mn and Pb can reach 93.19％ and 0.3％ respectively.%使用葡萄糖还原剂,对锌阳极泥进行了还原浸出试验.通过响应曲面法的模型优化设计和分析,研究了浸出过程中硫酸用量、葡萄糖糖用量、浸出温度对锌阳极泥中锰和铅浸出率的影响,得到最佳优化还原锰的工艺条件,并获得了二阶多项式模型.在葡萄糖用量3.5g、硫酸用量16 g、浸出温度90℃,在此优化条件下锰的浸出率为93.19％,铅浸出率为0 37％.