钢铁钒钛2025，Vol.46Issue(2)：26-32,7.DOI:10.7513/j.issn.1004-7638.2025.02.004
V2O5促进铁锰矿中铁、锰组元高效分离与循环利用机制
V2O5 promotes the efficient separation and recycling mechanism of iron and manganese components in ferromanganese ore
摘要
Abstract
Due to the similar physical and chemical properties of iron and manganese in ferroman-ganese ore,it is difficult to achieve efficient separation of iron and manganese components by using ex-isting methods.In this paper,V2O5 was introduced as an additive for mixed roasting with iron-man-ganese ore,and the phase evolution of the mixed roasting process,the migration and separation of man-ganese,iron and vanadium elements in the acid leaching process and the recycling mechanism were sys-tematically studied.The results show that the manganese-containing phase in the iron-manganese ore is converted into acid-soluble manganese pyrovanadate after roasting,while iron and silicon still exist in the form of Fe2O3 and SiO2.The leaching rates of Mn,Fe and V reach 81.25％,0.0074％and 5.77％,re-spectively,after acid leaching at pH 2.0 and 1.8,respectively,which realizes the effective separation of manganese and iron components.MnSO4 is obtained by vacuum drying of manganese-containing leach-ing solution,which can be used as an intermediate product in manganese metallurgy and manganese chemical industry.The separation of iron and vanadium is realized after alkali leaching,and the Fe2O3 content in the iron-rich tailings reaches 83.02％,which can be used as a raw material for blast furnace ironmaking.The V2O5 obtained from alkali leaching solution can be returned to the roasting system after hydrolysis precipitation and roasting,and its recycling rate is more than 90％,and the wastewater gener-ated in the process can also be returned to the leaching system for reuse.This study provides a new method for the clean and efficient utilization of co-associated iron-manganese resources.关键词
V2O5/铁锰矿/铁锰分离/焦钒酸锰/循环利用Key words
V2O5/ferromanganese ore/iron-manganese separation/manganese pyrovanadate/recycling分类
矿业与冶金引用本文复制引用
刘鑫羽,温婧,袁帅,李易鸿,刘子豪,姜涛..V2O5促进铁锰矿中铁、锰组元高效分离与循环利用机制[J].钢铁钒钛,2025,46(2):26-32,7.基金项目
国家重点研发计划青年科学家项目(2023YFC2909000) （2023YFC2909000）
国家自然科学基金资助项目(52374300,52174277,52204309). （52374300,52174277,52204309）
