用硫酸浸出河北某高炉瓦斯泥中锌  

Leaching Zinc from Blast Furnace Flue Dust from Hebei by Sulfuric Acid

作　　者：张晋霞[1,2] 邹玄 牛福生[1,2] 

机构地区：[1]华北理工大学矿业工程学院,河北唐山063009 [2]河北省矿业开发与安全技术重点实验室,河北唐山063009

出　　处：《金属矿山》2016年第8期194-196,共3页Metal Mine

基　　金：河北省自然科学基金项目(编号:E2015209117);河北省科技厅项目(编号:15213812);华北理工大学研究生创新项目(编号:2016 S18)

摘　　要：河北某瓦斯泥锌含量为8.74%、铁品位为27.4%,含锌矿物主要为红锌矿,含铁矿物主要为赤铁矿。为回收瓦斯泥中锌等有价元素,对其进行了硫酸浸出试验。结果表明,常温下,硫酸浓度为0.5 mol/L、液固比为6 m L/g、反应时间为15 min、搅拌速度为300 r/min条件下,可以获得锌浸出率为95.21%的指标,浸渣中锌品位降至0.5%。试验结果可以为该类瓦斯泥矿硫酸溶解浸出提供技术依据。There is 8. 74 % zinc and 27. 4 % iron in a blast furnace flue dust. Zinc mainly exists in zincite,and iron mainly exists in hematite. To recovery the valuable elements of zinc,sulfuric acid leaching experiment was conducted. Results indicated that,at room temperature,with sulfuric acid concentration is 0. 5 mol / L,liquid solid ratio is 6 m L / g,reaction time for 15 min,stirring speed of 300 r / min,zinc leaching rate of 95. 21 % can be obtained,zinc grade of leaching residual decreased to 0. 5 %. The results can provide technique basis for sulfate leaching of such kind of blast furnace flue dust.

关 键 词：瓦斯泥 硫酸 浸出 锌 铁 

分 类 号：TD925.6[矿业工程—选矿]