摘要
研究了用亚氯酸钠高效氧化浸出辉钼矿过程中溶液酸碱条件、亚氯酸钠量、温度、时间等对辉钼矿浸出率的影响,并得出以下最优浸出条件:辉钼矿0.5 g,亚氯酸钠2.0 g,50 mL硫酸(0.5 mol/L),温度85℃,搅拌速率120 r/min,浸出时间2 h,最终钼浸出率达到97.32%。通过反应动力学分析和活化能计算,亚氯酸钠浸出辉钼矿属于扩散控制反应。
The influence of various factors, such as solution pH, oxidant dosage, temperature and time on the leaching rate of molybdenite by using sodium chlorite was investigated. The leaching condition was optimized as: 0.5 g molybdenite, 2.0 g sodium chlorite, 50 mL sulfuric acid (mol/L), 85℃, and 120 r/min. A 97.32% Mo recovery was observed after leached for 2 h. The kinetics and activation energy calculation indicated that molybdenite leaching using sodium chlorite was controlled by diffusion.
作者
王恒
李育彪
李治明
谢绍炳
Wang Heng;Li Yubiao;Li Zhiming;Xie Shaobing(School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan,Hubei,China)
出处
《矿产综合利用》
CAS
北大核心
2019年第4期145-148,86,共5页
Multipurpose Utilization of Mineral Resources
基金
国家自然科学基金项目(51604205,51774223)
湖北省自然科学基金项目(2016CFB268)
中央高校基本科研业务费专项资金资助(2016IVA046,2017IVB018)
武汉理工大学自主创新研究基金项目(2017-ZHA1-03,2017-ZH-C1-18)
关键词
辉钼矿
亚氯酸钠
浸出
活化能
Molybdenite
sodium chlorite
leaching
activation energy
