褐煤还原软锰矿的初步研究  

A Preliminary Study on Reduction of Pyrolusite by Lignite

作　　者：吴林峰 梁仁旺 易清风[1,2] 刘小平 于站良[2,3] 聂会东 WU Linfeng;LIANG Renwang;YI Qingfeng;LIU Xiaoping;YU Zhanliang;NIE Huidong(School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan,Hunan 411201,China;State Key Laboratory of Pressure Hydrometallurgical Technology of associated Nonferrous Metal Resources,Yunnan Metallurgical Group,Kunming,Yunnan 650503,China;Yunnan Institute of Environmental Science,Kunming,Yunnan 650034,China)

机构地区：[1]湖南科技大学化学化工学院,湖南湘潭411201 [2]云南冶金集团共伴生有色金属资源加压湿法冶金技术国家重点实验室,云南昆明650503 [3]云南省环境科学研究院,云南昆明650034

出　　处：《中国锰业》2020年第4期29-31,共3页China Manganese Industry

基　　金：共伴生有色金属资源加压湿法冶金技术国家重点实验室开放基金(yy20160012)。

摘　　要：研究了在水热反应釜中,在硫酸溶液中用褐煤还原软锰矿得到可溶性Mn2+的过程。研究了水热反应温度、硫酸浓度、褐煤与软锰矿质量比等条件对锰浸取率的影响。通过选择合适的浸取工艺条件,锰的浸取率超过95%,说明褐煤是水热法浸取软锰矿中锰的合适的还原剂。In sulfuric acid solution,pyrolusite was efficiently reduced to soluble Mn2+ion by lignite through hydrothermal process.Effect of hydrothermal temperature,H2SO4 concentration and mass ratio of lignite to pyrolusite on Mn leaching efficiency was investigated.Mn leaching efficiency was higher than 95%at optimal conditions and it shows that lignite was the suitable reductant for hydrothermal leaching of pyrolusite.

关 键 词：软锰矿 褐煤 水热法 

分 类 号：TF792[冶金工程—钢铁冶金]