摘要
文章以次氧化锌粉尘和机械活化粉尘为原料,进行低酸浸出实验,研究硫酸质量浓度、液固比、浸出时间、浸出温度、搅拌速度对两种实验原料浸出效果的影响,得到了实验条件下最佳参数为:硫酸质量浓度100 g/L、液固比5 mL/g、浸出时间90 min、浸出温度60℃、搅拌速度500 r/min。在此条件下,机械活化粉尘的锌浸出率可达85%以上,比次氧化锌粉尘的锌浸出率总体提高10个百分点;两种原料中铁的浸出率都保持在5%~10%左右,铟、铅几乎不浸出。
In the paper,zinc oxide dust and mechanically activated dust were used as raw materials to study the effects of sulfuric acid concentration,liquid-solid ratio,leaching time,leaching temperature and stirring speed on the leaching effect of the two experimental raw materials,and the optimal parameters were as follows:sulfuric acid concentration of 100 g/L,liquid-solid ratio of 5 mL/g,leaching time of 90 min,leaching temperature of 60℃,and stirring speed of 500 r/min.Under these conditions,the zinc leaching rate of mechanically activated dust is increased by 10 percentage points compared with that of primary zinc oxide dust,which can reach more than 85%.The leaching rate of iron in both materials is maintained at about 5%~10%,and indium and lead are almost not leached.
作者
王贵华
龙跃
杜培培
张良进
李智慧
Wang Guihua;Long Yue;Du Peipei;Zhang Liangjin;Li Zhihui(North China University Science and Technology;Northeastern University;General Institute of Construction Research,MCC)
出处
《冶金能源》
北大核心
2024年第3期59-64,共6页
Energy For Metallurgical Industry
基金
国家基金委区域联合重点项目(U20A200822)。
关键词
次氧化锌
机械活化
低酸浸出
mechanical activation
zinc hypooxide
low acid leaching
mechanical activation
