水热法褐煤浸取软锰矿研究  

Study on Lignite Extraction Pyrolusite by Hydrothermal Method

作　　者：吴燕 吴林峰 梁仁旺 易清风[1,2] 刘小平 于站良[2,3] 聂会东 WU Yan;WU Lin-feng;LIANG Ren-wang;YI Qing-feng;LIU Xiao-ping;YU Zhan-liang;NIE Hui-dong(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,Kunming,Yunnan 650503,China;Yunnan Research Academy of Eco-environmental Sciences,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]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：《云南冶金》2020年第6期52-54,共3页Yunnan Metallurgy

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：以硫酸为浸取液、褐煤为还原剂,采用水热法高效浸取软锰矿中的锰。研究了不同水热浸取温度、不同浸取时间对软锰矿浸取率的影响。结果表明,在(140~290)℃的浸取温度范围、(1~6)h的反应时间范围内,软锰矿的最佳浸取条件为:浸取温度230℃,浸取时间4 h,在此条件下浸取率达95%。Taking sulfuric acid as the leaching liquid,lignite as the reducing agent,the hydrothermal method is adopted for effective leaching of manganese from pyrolusite.The effect of the different hydrothermal leaching temperature,the different leaching time on leaching rate of pyrolusite.The results show,the optimal leaching conditions under the range of(140~290)℃leaching temperature,(1~6)h reaction time are:the leaching temperature is 230℃,the leaching time is 4h,the leaching rate can reach to 95%with these conditions.

关 键 词：软锰矿 锰 褐煤 浸取 水热法 最佳条件 

分 类 号：TF521.5[冶金工程—钢铁冶金]