电解锰硫化渣浸出低品位软锰矿的研究  

Reductive Leaching of Manganese from Low-grade Pyrolusite Using Sulfide Slag

作　　者：郭怀兵[1] 刘亚丽 黄润均[1] 蓝梓铭[1] 马华菊[1] 李德鲲 

机构地区：[1]桂林理工大学南宁分校,广西南宁530001 [2]北京赛科康仑环保科技有限公司,北京100000

出　　处：《广州化工》2015年第8期121-123,共3页GuangZhou Chemical Industry

摘　　要：以低品位软锰矿为研究对象,采用电解锰硫化渣浸出其中的锰,考察了搅拌速率、液固比、温度、硫化渣用量、硫酸用量和反应时间对锰浸出率的影响。结果表明,在搅拌速率为400 r/min,液固比为5,硫化渣用量3 g,硫酸浓度140 g/L,温度90℃,浸出时间3.5 h时,锰的浸出率达94.27%,实现了硫化渣的资源再利用。The process of leaching of manganese fromLow- grade pyrolusite using sulfide slag was studied in this paper. Parameters such as the stirring rate,the liquid- solid rate,temperature,and the addition of sulfide slag,the concentration of sulphuric acid and time on the leaching rate were analyzed. The research showed the optimal leaching conditions were obtained as 140 g / L H2SO4 and 3 g sulfide slag and liquid- solid ratio of 5 for 3. 5 h at 90 ℃ under400 r / min stirring rate. The leaching rate by this way was 94. 27%,the waste ores were reused.

关 键 词：硫化渣 软锰矿 浸出 

分 类 号：TF111.5[冶金工程—冶金物理化学]