Leaching process and kinetics of manganese in low-grade manganese ore

Manganese was extracted from leaching low-grade manganese ore in sulfuric acid medium. The effects of granule diameter, leaching time, liquid/solid ratio （V/W） and the concentration of sulfuric acid were investigated through orthogonal and single factor experiments. The experimental results showed t...

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Bibliographic Details
Published in:Acta geochimica 2013-06, Vol.32 (2), p.222-226
Main Authors: Xie, Chao, Xu, Longjun, Peng, Tiefeng, Chen, Kun, Zhao, Jing
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Fractal analysis
Geochemistry
Granular materials
Granules
Kinetics
Leaching
Liquids
Manganese
Optimization
Sulfuric acid
低品位锰矿
动力学
单因素实验
反应时间
浸出时间
浸出过程
硫酸介质
硫酸浓度
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Summary:Manganese was extracted from leaching low-grade manganese ore in sulfuric acid medium. The effects of granule diameter, leaching time, liquid/solid ratio （V/W） and the concentration of sulfuric acid were investigated through orthogonal and single factor experiments. The experimental results showed that the optimal leaching conditions are, size of 0.054 ram, 120 minutes of reaction time, 3 （V/W） of liquid/solid ratio and 30% of the concentration of sulfuric acid （g/g）. Under those conditions, the leaching efficiency is 96.73%. The kinetics of the leaching process is in accordance with the characteristics of fractal reaction.
ISSN:1000-9426
2096-0956
1993-0364
2365-7499
DOI:10.1007/s11631-013-0625-3