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STUDY ON THE PREPARATION OF MANGANESE SULFATE BY DIRECT REDUCTION FROM MEDIUM AND LOW GRADE PYROLUSITES.

Bai Yuxing

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Abstract

The preparation of manganese sulfate by direct reduction from medium and low grade pyrolusites is studied.It is combined the carbon reduction-sulfuric acid extraction process,which is used in the traditional method.The heavy metal salts and the soluble silicates in the process can be transfered into insoluble oxides and removed,so,the utilization ratio of manganese can be improved,the leaching ratio of manganese sulfate can reach about 90% and the purity of the product is over 98.5%.

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What this paper is about

The preparation of manganese sulfate by direct reduction from medium and low grade pyrolusites is studied.It is combined the carbon reduction-sulfuric acid extraction process,which is used in the traditional method.The heavy metal salts and the soluble silicates in the process can be transfered into insoluble oxides and removed,so,the utilization ratio of manganese can be improved,the leaching ratio of manganese sulfate can reach about 90% and the purity of the product is over 98.5%.

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Available abstract

The preparation of manganese sulfate by direct reduction from medium and low grade pyrolusites is studied.It is combined the carbon reduction-sulfuric acid extraction process,which is used in the traditional method.The heavy metal salts and the soluble silicates in the process can be transfered into insoluble oxides and removed,so,the utilization ratio of manganese can be improved,the leaching ratio of manganese sulfate can reach about 90% and the purity of the product is over 98.5%.

Key concepts: Manganese, Sulfuric acid, Chemistry, Leaching (pedology), Sulfate, Inorganic chemistry, Metal, Extraction (chemistry)

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STUDY ON THE PREPARATION OF MANGANESE SULFATE BY DIRECT REDUCTION FROM MEDIUM AND LOW GRADE PYROLUSITES. — Research Paper | ScholarLens