电解浸出软锰矿的研究  

Study on Electrolytic Leaching of Pyrolusite

作　　者：扶强 满瑞林[1] 王帅[1] 钟宏[1] FU Qiang;MAN Ruilin;WANG Shuai;ZHONG Hong(Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources,Central South University,Changsha 410083,Hunan)

机构地区：[1]中南大学锰资源高效清洁利用湖南省重点实验室,湖南长沙410083

出　　处：《湖南工业大学学报》2018年第6期85-89,共5页Journal of Hunan University of Technology

基　　金：国家科技支撑计划基金资助项目(2015BAB17B01);国家水体污染控制与治理科技基金资助重大专项子课题(2013ZX07504-001-04-02)

摘　　要：采用电解法浸出软锰矿,考察硫酸铁用量、硫酸用量、浸出时间、电流密度、液固比、反应温度和搅拌速率对锰浸出率的影响。结果表明,在铁锰物质的量之比为1:2,硫酸物质的量浓度为0.1 mol/L,浸出时间为2 h,电流密度为400 A/m2,液固比为7:1,反应温度为80℃,搅拌速率为300 r/min的优化工艺条件下,锰的浸出率达95%以上。By using the method of electrolysis, an extraction of pyrolusite can be achieved, followed by an investigation of the effects of the amount of ferric sulfate, amount of sulfuric acid, leaching time, current density, ratio of liquid and solid, temperature and stirring rate on the leaching rate. With the mole ratio of ferrous sulfate to pyrolusite being 1:2, the concentration of sulfuric acid being 0.1 mol/L, the leaching time being 2 h, the current density being 400 A/m2, the liquid-solid ratio being 7:1, the temperature being 80 ℃, and the stirring rate being 300 r/min, the leaching rate of manganese reaches above 95% under these optimum conditions.

关 键 词：电解 还原浸出 软锰矿 硫酸铁 

分 类 号：TF11[冶金工程—冶金物理化学]