低品位氧化锌矿在NH_(4)Cl溶液中的浸出研究  

Study on Leaching of Low-grade Zinc Oxide Ore in NH_(4)Cl Solution

作　　者：朱兴彩 杨坤[2] 曾华姣 王宇超 徐彩花 ZHU Xingcai;YANG Kun;ZENG Huajiao;WANG Yuchao;XU Caihua(Yunnan Tin Vocational&Technical College,Gejiu 661000,China;Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]云南锡业职业技术学院,云南个旧661000 [2]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《中国资源综合利用》2022年第3期31-34,38,共5页China Resources Comprehensive Utilization

基　　金：云南省教育厅科学研究基金教师类项目(2019J1018)。

摘　　要：本文研究了低品位氧化锌矿在NH_(4)Cl溶液中的浸出,并重点分析搅拌速度、NH_(4)Cl浓度、反应温度、液固比、反应时间对异极矿在NH_(4)Cl溶液中浸出的影响。结果表明,提高NH_(4)Cl浓度、反应温度和液固比可以极大提升锌浸出率,搅拌速度对锌浸出率的影响较小。在温度155℃、NH_(4)Cl浓度5.5 mol/L、液固比9∶1、搅拌速度400 r/min、反应时间3 h的条件下,锌的浸出率大于97.50%。In this paper,the leaching of low-grade zinc oxide ore in NH_(4)Cl solution is studied,and the effects of stirring speed,NH_(4)Cl concentration,reaction temperature,liquid-solid ratio and reaction time on the leaching of hemimorphite in NH_(4)Cl solution are analyzed.The results show that increasing the concentration of NH_(4)Cl,reaction temperature and liquid-solid ratio can greatly improve the zinc leaching rate,and the stirring speed has little effect on the zinc leaching rate.Under the conditions of temperature 155℃,NH_(4)Cl concentration 5.5 mol/L,liquid-solid ratio 9∶1,stirring speed 400 r/min,and reaction time 3 h,the leaching rate of zinc is more than 97.50%.

关 键 词：异极矿 NH_(4)Cl溶液 浸出率 温度 

分 类 号：TF813[冶金工程—有色金属冶金]