机械活化次氧化锌粉尘低酸浸出实验研究  

Experimental study on low acid leachingof mechanical activated primary zinc oxide dust

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)

机构地区：[1]华北理工大学冶金与能源学院 [2]华北理工大学现代冶金技术教育部重点实验室 [3]东北大学冶金学院 [4]中冶建筑研究总院有限公司

出　　处：《冶金能源》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)。

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.

关 键 词：次氧化锌 机械活化 低酸浸出 

分 类 号：TF813[冶金工程—有色金属冶金]