2008•Materials Research and ApplicationRequires access
A new technique on deoxidize pyrolusite and preparing manganese sulfate
Yiqiang Deng
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Abstract
Deoxidize pyrolusite was conducted with a plant powder then leached with sulphuric acid.Effects of reductant amount,pyrolusite fineness,leaching pH,leaching temperature and time on the reduction rate were investigated.The results showed that the conversion rate of manganese reached 94.35% under the conditions of the ratio of reducer and pyrolusite at 25%,lixivium's pH at 3.0,temperature at 95℃ and time of 60 min.