某钢厂烟尘灰中锌的酸性浸出试验研究  

Study on leaching zinc from dust ash of steel plant using sulfuric acid

作　　者：陈勇[1] 王晖[1] 符剑刚[1] 揭轩敏 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《应用化工》2015年第6期1101-1103,1108,共4页Applied Chemical Industry

摘　　要：以唐山含锌烟尘灰为原料,采用酸浸工艺从烟尘灰中分离回收锌,并考察了硫酸用量、浸出温度、浸出时间和液固比对锌的浸出率的影响,得出了最佳的工艺条件:硫酸用量为45%,浸出温度为室温(20℃),滴加时间为0.5 h,浸出时间为2 h,液固比为2∶1,锌的浸出率高达91.06%。Taking a dust ash of steel plant from Tangshan as material,leaching zinc from a dust ash of steel plant was conducted using sulfuric acid. The effects of amount of sulfuric acid,temperature,leaching time,and liquid/solid ratio on leaching yield of zinc. The obtained optimum conditions are sulfuric acid45%,room temperature,adding time 0. 5 h,leaching time 2 h,and liquid/solid ratio 2 ∶ 1,the leaching yield is up to 91. 06%.

关 键 词：烟尘灰 酸浸 浸出率 锌 

分 类 号：TQ028.9[化学工程] TF813[冶金工程—有色金属冶金]