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Process Conditions and Kinetics of Removing Calcium and Magnesium from Manganese Sulfate Solution by Manganese Fluoride
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Zhengqing PEI1, 2, Jiawei WANG1, 2, 3, Haifeng WANG1, 2, 3, Chunyuan YANG1, 2, Xingjie ZHOU1, 2, Kexin ZHENG1, 2, Ju LU1, 2, Dehua MA1, 2, Fanghai LU4
Mining and Metallurgical Engineering | 2024, 44(1) : 111 - 115
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Mining and Metallurgical Engineering | 2024, 44(1): 111-115
• METALLURGY •
Process Conditions and Kinetics of Removing Calcium and Magnesium from Manganese Sulfate Solution by Manganese Fluoride
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Zhengqing PEI1, 2, Jiawei WANG1, 2, 3, Haifeng WANG1, 2, 3, Chunyuan YANG1, 2, Xingjie ZHOU1, 2, Kexin ZHENG1, 2, Ju LU1, 2, Dehua MA1, 2, Fanghai LU4
Affiliations
  • 1.College of Materials and Metallurgy, Guizhou University, Guiyang 550025, Guizhou, China
  • 2.Guizhou Key Laboratory of Metallurgical Engineering and Process Energy Conservation, Guiyang 550025, Guizhou, China
  • 3.Engineering Technology Research Center of Manganese Material for Batteries, Tongren 554300, Guizhou, China
  • 4.School of Materials and New Energy Engineering, Guizhou Institute of Technology, Guiyang 550003, Guizhou, China
Published: 2024-02-01 doi: 10.3969/j.issn.0253-6099.2024.01.024
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The effects of excess coefficient of manganese fluoride, pH value of solution, reaction temperature and reaction time on the removal rate of calcium and magnesium from manganese sulfate solution were studied by performing single factor experiment with manganese fluoride as a removal agent. Under the optimum conditions, including an excess coefficient of manganese fluoride of 2.0, pH of 5, reaction temperature of 85 ℃ and reaction time of 80 min, the removal rates of calcium and magnesium can reach 97.06% and 95.48%, respectively. The kinetic study on this basis shows that the precipitation reactions of both calcium and magnesium in manganese sulfate solution conform to the Avrami equation, with apparent activation energies of 48.01 kJ/mol and 53.23 kJ/mol, respectively. The surface reaction is a factor to limit the precipitation rates of calcium and magnesium.

manganese sulfate solution  /  calcium removal  /  magnesium removal  /  calcium and magnesium  /  manganese fluoride  /  precipitation  /  process conditions  /  kinetics
Zhengqing PEI, Jiawei WANG, Haifeng WANG, Chunyuan YANG, Xingjie ZHOU, Kexin ZHENG, Ju LU, Dehua MA, Fanghai LU. Process Conditions and Kinetics of Removing Calcium and Magnesium from Manganese Sulfate Solution by Manganese Fluoride[J]. Mining and Metallurgical Engineering, 2024 , 44 (1) : 111 -115 . DOI: 10.3969/j.issn.0253-6099.2024.01.024
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doi: 10.3969/j.issn.0253-6099.2024.01.024
  • Receive Date：2023-09-10
  • Online Date：2026-03-20
  • Published：2024-02-01
Article Data
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  • Received：2023-09-10
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Affiliations
    1.College of Materials and Metallurgy, Guizhou University, Guiyang 550025, Guizhou, China
    2.Guizhou Key Laboratory of Metallurgical Engineering and Process Energy Conservation, Guiyang 550025, Guizhou, China
    3.Engineering Technology Research Center of Manganese Material for Batteries, Tongren 554300, Guizhou, China
    4.School of Materials and New Energy Engineering, Guizhou Institute of Technology, Guiyang 550003, Guizhou, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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