NDLI: Manganese extraction from high-iron-content manganese oxide ores by selective reduction roasting-acid leaching process using black charcoal as reductant

Content Provider	Springer Nature Link
Author	Zhang, Yuan bo Zhao, Yi You, Zhi xiong Duan, Dao xian Li, Guang hui Jiang, Tao
Copyright Year	2015
Abstract	Reduction roasting-acid leaching process was utilized to process high-iron-content manganese oxide ore using black charcoal as reductant. The results indicate that, compared with the traditional reductant of anthracite, higher manganese extraction efficiency is achieved at lower roasting temperature and shorter residence time. The effects of roasting parameters on the leaching efficiency of Mn and Fe were studied, and the optimal parameters are determined as follows: roasting temperature is 650 °C, residence time is 40 min, and black charcoal dosage is 10% (mass fraction). Under these conditions, the leaching efficiency of Mn reaches 82.37% while that of Fe is controlled below 7%. XRD results show that a majority of MnO$_{2}$ and Fe$_{2}$O$_{3}$ in the raw ore are reduced to MnO and Fe$_{3}$O$_{4}$, respectively.
Starting Page	2515
Ending Page	2520
Page Count	6
File Format	PDF
ISSN	20952899
Journal	Journal of Central South University of Technology
Volume Number	22
Issue Number	7
e-ISSN	22275223
Language	English
Publisher	Central South University
Publisher Date	2015-07-14
Publisher Place	Changsha
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	manganese ore reduction roasting acid leaching black charcoal Engineering Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys Engineering

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Manganese extraction from high-iron-content manganese oxide ores by selective reduction roasting-acid leaching process using black charcoal as reductant