化工矿物与加工2026，Vol.55Issue(8)：14-21,8.DOI:10.16283/j.cnki.hgkwyjg.2026.08.003
基于两矿法的某进口锰矿浸出效果及其动力学研究
Study on leaching effect and kinetics of an imported manganese ore based on two-ore method
摘要
Abstract
The main component of an imported manganese ore is FeMn2O4,the valence of Mn is+3,and it is dis-proportionated into+2 and+4 valence under acidic conditions.However,Mn4+cannot enter the leaching solution directly,and it needs to be reduced to soluble Mn2+by adding a reducing agent.In this paper,the effects of sulfuric acid concentration,pyrite content,reaction temperature and reaction time on manganese leaching rate were investiga-ted by using pyrite as reducing agent,and the leaching kinetics was studied.The results show that the optimum lea-ching conditions are liquid-solid ratio of 5:1,acid concentration of 2 mol/L,pyrite content of 30％,reaction tempera-ture of 90℃and reaction time of 6 h.Under these conditions,the leaching rate of manganese is as high as 96.83％.The liquid-solid unreacted shrinking core model was used to analyze the leaching process.It was found that the reaction rate was controlled by chemical reaction,and the activation energy was 42.232 8 kJ/mol.The research results can provide technical reference for the efficient utilization of manganite spinel.关键词
硫铁矿/两矿法/还原浸出/还原剂/浸出动力学/浸出率Key words
pyrite/two-ore method/reduction leaching/reducing agent/leaching kinetics/leaching rate分类
矿业与冶金引用本文复制引用
刘馨阳,王海峰,王家伟,田松,唐旭,叶婷婷,周芳羽..基于两矿法的某进口锰矿浸出效果及其动力学研究[J].化工矿物与加工,2026,55(8):14-21,8.基金项目
贵州省科技计划重点支撑项目(黔科合支撑[2022]重点020) （黔科合支撑[2022]重点020）
2025年度中央引导地方科技发展资金项目(黔科合中引地[2025]026) （黔科合中引地[2025]026）
铜仁市重大科技项目(铜仁市科技计划[2024]93). （铜仁市科技计划[2024]93）
