Reductive Leaching of Manganese from Certain Low-grade Pyrolusite with Tannic Acid and Acetic Acid

YANG Chunyuan; WANG Jiawei; WANG Song; YANG Pan; HE Yue; WANG Haifeng

doi:10.13779/j.cnki.issn1001−0076.2022.05.014

2022 Vol. 42, No. 5

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Article navigation > Conservation and Utilization of Mineral Resources > 2022 > 42(5): 119-125

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YANG Chunyuan, WANG Jiawei, WANG Song, YANG Pan, HE Yue, WANG Haifeng. Reductive Leaching of Manganese from Certain Low-grade Pyrolusite with Tannic Acid and Acetic Acid[J]. Conservation and Utilization of Mineral Resources, 2022, 42(5): 119-125. doi: 10.13779/j.cnki.issn1001−0076.2022.05.014

Citation:

YANG Chunyuan, WANG Jiawei, WANG Song, YANG Pan, HE Yue, WANG Haifeng. Reductive Leaching of Manganese from Certain Low-grade Pyrolusite with Tannic Acid and Acetic Acid[J]. Conservation and Utilization of Mineral Resources, 2022, 42(5): 119-125. doi: 10.13779/j.cnki.issn1001−0076.2022.05.014

Reductive Leaching of Manganese from Certain Low-grade Pyrolusite with Tannic Acid and Acetic Acid

1.
College of Materials and Metallurgy, Guizhou University, Guiyang 550025, Guizhou, China
2.
Research Technology Center of Manganese Materials for Battery of Guizhou Province , Tongren 554300, Guizhou, China
3.
Guizhou Provincial Key Laboratory of Metallurgical Engineering and Energy Saving, Guiyang 550025, Guizhou, China

More Information

Corresponding author: WANG Haifeng

Received Date: 18 May 2022

Publish Date: 25 October 2022

Abstract

Abstract

To rationally develop and utilize the procession of certain low-grade pyrolusite, the combination of more environmentally friendly and naturally macromolecular tannic acid, and acetic acid as a new composite green leaching agent was first investigated and applied in this experiment. It provides another sustainable and safe practice innovation for manganese leaching. The effects of acetic acid concentration, tannic acid concentration, liquid-solid ratio, reaction temperature, and reaction time on manganese leaching rate were studied through the single factor test and orthogonal test. The results showed that the main factors affecting manganese leaching rate were tannic acid concentration, acetic acid concentration, liquid-solid ratio, reaction time, and reaction temperature. Under the optimal process conditions (acetic acid concentration of 3.5 mol/L, tannic acid concentration of 25 g/L, liquid-solid ratio of 9 mL/g, reaction temperature of 85 ℃, and reaction time of 2.5 h), the leaching rate of manganese from pyrolusite could reach 97.26%.
- pyrolusite /
- acetic acid /
- tannic acid /
- leaching

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References

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