摘要
研究了采用氧压水浸法浸出辉钼矿中的钼,考察了矿石粒级、氧分压、温度、搅拌速度对辉钼矿氧化的影响,探讨了氧化产物在固、液两相中的分配规律。结果表明:矿石粒度的减小,以及氧分压、温度、搅拌速度的提高均可促进辉钼矿氧化;氧化产物首先进入液相,当液相中MoO_(4)^(2-)达到饱和后,氧化产物会以MoO_(3)形式进入渣相;辉钼矿氧压水浸过程中钼的氧化过程可用未反应核收缩模型描述,反应速率受混合控制模型控制,表观活化能为40.55 kJ/mol。
The leaching of molybdenum from molybdenite by oxygen pressure water leaching method was studied.The effects of ore size,oxygen partial pressure,temperature and stirring speed on oxidation of molybdenite were investigated,and the distribution of oxidation products in solid and liquid phases was discussed.The results show that the oxidation of molybdenite can be promoted by the decrease of ore particle size and the increase of oxygen partial pressure,temperature and stirring speed.The oxidation products first enter the liquid phase.When the liquid phase is saturated with MoO_(4)^(2-),the oxidation products will enter the slag phase in the form of MoO_(3).The oxidation of molybdenum during oxygen pressure water leaching of molybdenite can be described by the unreacted nuclear shrinkage model.The reaction rate is controlled by the mixed control model,and the apparent activation energy is 40.55 kJ/mol.
作者
姜丽帅
蔺月萌
韩百岁
李潇煜
徐文涛
谢昊宇
JIANG Lishuai;LIN Yuemeng;HAN Baisui;LI Xiaoyu;XU Wentao;XIE Haoyu(School of Mining Engineering,University of Science and Technology Liaoning,Anshan 101145,China)
出处
《湿法冶金》
CAS
北大核心
2024年第1期47-52,66,共7页
Hydrometallurgy of China
基金
辽宁科技大学优秀人才项目(2021YQ05)。
关键词
辉钼矿
氧压
钼
氧化
水浸
动力学
规律
molybdenite
oxygen pressure
molybdenum
oxidation
water leaching
kinetics
rule
