某多金属硫化矿酸浸试验研究  

Experimental Study on Acid Leaching of Polymetallic Sulphide Ore

作　　者：张晋霞 郑凯露[1] 牛福生 ZHANG Jinxia;ZHENG Kailu;NIU Fusheng(School of Mining Engineering,North China University of Science and Technology,Tangshan 063210,Hebei,China;Hebei Key Laboratory of Mining Development and Safety Technology,Tangshan 063210,Hebei,China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063210 [2]河北省矿业开发与安全技术重点实验室,河北唐山063210

出　　处：《矿冶工程》2024年第1期121-124,128,共5页Mining and Metallurgical Engineering

摘　　要：对某难选多金属硫化矿浮选预处理所得精矿进行了酸浸试验研究。在浸出温度95℃、硝酸浓度9 mol/L、液固比4∶1及浸出时间2 h条件下进行酸浸试验,铜和锌浸出率分别达到了90.46%、85.34%,铅几乎没有浸出。浸出过程主要受固膜控制和化学反应混合控制。An experiment of acid leaching was performed for the concentrate obtained by flotation pretreatment of a refractory sulphide ore.After leaching at 95℃for 2 h,with nitric acid concentration at 9 mol/L,and liquid-solid ratio of 4∶1,the leaching rates of copper and zinc reach 90.46%and 85.34%,respectively,showing no lead leached out.The leaching process is mainly controlled by both solid film and chemical reaction.

关 键 词：多金属硫化矿 酸浸 动力学 固膜控制 铜 铅 锌 

分 类 号：TD952[矿业工程—选矿]