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Extraction of Lithium from Alkali Leaching Solution of Rare Earth Molten Salt Electrolysis Residue Using Gas-Liquid Reaction Crystallization Method
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Jie WANG1, Mingming YU2, Guangjun MEI1
Hydrometallurgy of China | 2026, 45(2) : 170 - 175
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Hydrometallurgy of China | 2026, 45(2): 170-175
• Experiment Research •
Extraction of Lithium from Alkali Leaching Solution of Rare Earth Molten Salt Electrolysis Residue Using Gas-Liquid Reaction Crystallization Method
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Jie WANG1, Mingming YU2, Guangjun MEI1
Affiliations
  • 1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan　430070, China
  • 2.School of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou　341000, China
Published: 2026-04-20 doi: 10.13355/j.cnki.sfyj.2026.02.005
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Extraction of lithium from alkali leaching solution of rare earth molten salt electrolytic residue by gas-liquid reaction crystallization method was studied. The effects of temperature, carbon dioxide flow rate, pH, aeration time and stirring speed on the carbonation rate were investigated. The results show that the carbonization rate is about 83% under the optimized conditions of temperature of 90 ℃, CO2 inflow rate of 1 000 mL/min, ventilation time of 20 min and stirring speed of 450 r/min. The carbonization rate increases first and then decreases with the increase of CO2 inflow rate and ventilation time. The product is lithium carbonate with no impurities and high crystallinity. This method overcomes the problems of local supersaturation and uneven crystal size caused by traditional precipitation method, and provides a new technical path for the resource treatment of complex alkaline lithium-containing wastewater. And it can promote the rare earth smelting industry to the direction of green, recycling, high value development.

carbon  /  crystallization  /  alkaline leaching solution of rare earth molten salt electrolytic residue  /  lithium carbonate  /  gas-liquid reaction crystallization method
王杰, 于明明, 梅光军. 用气液反应结晶法提取稀土熔盐电解渣碱浸液中的锂. 湿法冶金, 2026 , 45 (2) : 170 -175 . DOI: 10.13355/j.cnki.sfyj.2026.02.005
Jie WANG, Mingming YU, Guangjun MEI. Extraction of Lithium from Alkali Leaching Solution of Rare Earth Molten Salt Electrolysis Residue Using Gas-Liquid Reaction Crystallization Method[J]. Hydrometallurgy of China, 2026 , 45 (2) : 170 -175 . DOI: 10.13355/j.cnki.sfyj.2026.02.005
Appendix
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Year 2026 volume 45 Issue 2
155
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Article Info
doi: 10.13355/j.cnki.sfyj.2026.02.005
  • Receive Date：2025-12-05
  • Online Date：2026-09-28
  • Published：2026-04-20
Article Data
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History
  • Received：2025-12-05
  • Revised：2026-01-07
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Affiliations
    1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan　430070, China
    2.School of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou　341000, China
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Citations
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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