高硅氧化锰矿还原焙烧-酸浸工艺研究  

Reduction Roasting and Acid Leaching of High⁃Silicon Manganese Oxide Ore

作　　者：肖胜鹏 田宇航 李飞 刘志雄[1,2] 刘清霞 陈爽 XIAO Shengpeng;TIAN Yuhang;LI Fei;LIU Zhixiong;LIU Qingxia;CHEN Shuang(College of Physics and Electromechanical Engineering,Jishou University,Jishou 416000,Hunan,China;Hunan Province Key Laboratory of Mineral Cleaner Production and Green Functional Materials,Jishou University,Jishou 416000,Hunan,China)

机构地区：[1]吉首大学物理与机电工程学院,湖南吉首416000 [2]矿物清洁生产与绿色功能材料开发湖南省重点实验室,吉首大学,湖南吉首416000

出　　处：《矿冶工程》2024年第3期120-123,129,共5页Mining and Metallurgical Engineering

基　　金：湖南省自然科学基金(2020JJ4507,2020JJ5456);矿物清洁生产与绿色功能材料开发湖南省重点实验室开放基金(KWC202001)。

摘　　要：依据锰矿的赋存形态,采用还原焙烧-酸浸法处理高硅复杂氧化锰矿,考察了焙烧温度、焙烧时间、煤与矿质量比、浸出温度、浸出时间、初始硫酸浓度、液固比等因素对锰浸出率的影响。结果表明,在焙烧温度880℃、焙烧时间1.5 h、煤与矿质量比18%、浸出温度55℃、浸出时间2 h、初始硫酸浓度1.80 mol/L、液固比5 mL/g条件下,锰浸出率达95.83%。According to the existence of manganese,an experiment was carried out by adopting a processing technique consisting of reduction roasting and acid leaching to treat high-silicon manganese oxide ore.The effects of roasting temperature,roasting time,mass ratio of coal to ore,leaching temperature and time,initial sulfuric acid concentration,and liquid-solid ratio on the manganese leaching rate were all investigated.The results show that the leaching rate of manganese can reach 95.83%under the conditions including roasting temperature of 880℃,roasting time of 1.5 h,a mass ratio of 18%for coal to ore,leaching temperature of 55℃,leaching time of 2 h,initial sulfuric acid concentration of 1.80 mol/L,as well as liquid-solid ratio of 5 mL/g.

关 键 词：氧化锰矿 高硅 还原焙烧 酸浸 

分 类 号：TF111[冶金工程—冶金物理化学]