含锌废渣中锌的回收试验  

Recovery Test of Zinc in Waste Zinc Slags

作　　者：焦萍[1] 赵碧琳[1] 

机构地区：[1]黄石理工学院化学与材料工程学院,湖北黄石435003

出　　处：《甘肃冶金》2011年第6期49-51,共3页Gansu Metallurgy

摘　　要：针对含锌废渣进行了锌回收的两步酸浸取试验,分析了氧化剂浓度、固液比、浸出温度、浸出反应时间、浸出终点pH、搅拌速度等因素对锌浸出率的影响。试验结果表明:氧化剂为40%过硫酸铵,固液比为1:10,浸出液终点pH=1.5,浸出时间控制在1～1.5 h,浸出温度为常温,搅拌速度为100～200 r/min,锌浸出率达80%以上,RSD为0.87%～1.44%。Two-step acid leaching test has been done on the zinc in zinc-containing waste. Some factors influencc the rate of zinc leaching were Analysised , such as the oxidant concentration, solid-liquid ratio, leaching temperature, leaching reaction time, leaching the end of pH, stirring speed etc. The results show that under following conditions：40% ammonium persulfate oxidant, solid-liquid ratio of 1 ： 10, final leaching solution pH --- 1.5, leaching time in 1 - 1.5 h, leaching temperature as room temperature, stirring speed 100 - 200 r/min, results of zinc leaching more than 80%, RSD 0.87% -1.44% are achived.

关 键 词：含锌废渣 酸 浸出 

分 类 号：TF111.31[冶金工程—冶金物理化学]