Process for Reduction Leaching Pyrolusite Using Hull

2017 3rd International Conference on Energy, Environment and Materials Science

能源学;生态环境科学;材料科学

Zhang, Tian^1,2 ; Wang, Haifeng^1,2 ; Wang, Jiawei^1,2 ; Zhao, Pingyuan^1,2

College of Materials and Metallurgy, Guizhou University, Guiyang

550025, China^1

Research and Application Center of Mn-based Materials for Battery, Guizhou Province, China^2

关键词: Leaching rates;    Leaching time;    Low grade;    Manganese ore;    Orthogonal experiment;    Reductants;    Reductive leaching;    Single-factor experiments;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/94/1/012187/pdf
DOI  :  10.1088/1755-1315/94/1/012187

来源: IOP

【 摘 要 】

In order to solve the problem of excessive accumulation of hull and leaching low-grade soft manganese ore, the reductive leaching of pyrolusite with hull by single factor experiment and orthogonal experiment were studied. The effects of leaching temperature, reductant quantity, sulfuric acid dosage and leaching time on the leaching rate of manganese were investigated. The results showed that the rate of manganese can reach over 95% when leaching temperature is 90C, reducing agent dosage is 30g, amount of sulfuric acid is 40mL and leaching time is 5h.