Reduction of low-grade manganese oxide ore by biomass roasting

• 来源期刊: 金属学报(英文版)
• 学科: 工学
• 关键词: 低品位矿石 二氧化锰 还原焙烧 生物质 焙烧温度 浸出温度 硫酸浓度 锰矿石
• 年，卷（期）: 2010,（3）
• 页码范围: 223-229
• 页数: 7页
• 分类号: TQ137.12|TD953
• 语种: 英文

摘要

The reduction process of manganese dioxide in low-grade manganese ore by biomass roasting was investigated.The calcine of manganese oxide ore was further leached by sulphuric acid, the manganese in ore can be converted into manganese sulfate.Effects of the mass ratio of manganese ore to sawdust, roasting temperature and time, leaching temperature and time, leaching agent concentration and liquid-solid ratio were studied.97.71%of manganese recovery can be achieved under the optimal conditions:the mass ratio...