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Selective Recovery of Lithium from Waste Lithium Iron Phosphate for Preparation of Lithium Carbonate
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Mengjie LIU1, Guangxin FAN1, 2, Jinpei YIN1, Hongbo ZHANG2, Yuhao ZHANG2
Mining and Metallurgical Engineering | 2023, 43(3) : 106 - 109
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Mining and Metallurgical Engineering | 2023, 43(3): 106-109
• METALLURGY •
Selective Recovery of Lithium from Waste Lithium Iron Phosphate for Preparation of Lithium Carbonate
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Mengjie LIU1, Guangxin FAN1, 2, Jinpei YIN1, Hongbo ZHANG2, Yuhao ZHANG2
Affiliations
  • 1.School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China
  • 2.Henan Fuxin Energy Environmental Protection Co Ltd, Jiaozuo 454000, Henan, China
Published: 2023-06-01 doi: 10.3969/j.issn.0253-6099.2023.03.024
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In an experiment, with hydrochloric acid as leaching agent and NaClO3 as oxidizing agent, lithium was selectively leached from cathode material of spent lithium iron phosphate battery, and the effects of factors, including dosage of hydrochloric acid, solid-liquid ratio and reaction time, on the lithium leaching rate were investigated. It is shown that with an addition of hydrochloric acid at an amount of 1.0 time theoretical value, solid-liquid ratio of 1∶3 and reaction time of 3 h, the average lithium leaching rate can reach 99.33% by using this process. After that, magnesium hydroxide and sodium hydroxide were added into the raffinate in turn to remove impurities of P, Al and Fe. And then, the obtained solution was used to prepare Li2CO3 at 95 ℃ by adding anhydrous sodium carbonate. After water washing to remove NaCl, a high purity Li2CO3 (99.62%) can be obtained, which meets the industrial standard for industrial-grade lithium carbonate.

spent lithium iron phosphate battery  /  cathode material  /  lithium iron phosphate  /  lithium  /  recovery  /  lithium carbonate
Mengjie LIU, Guangxin FAN, Jinpei YIN, Hongbo ZHANG, Yuhao ZHANG. Selective Recovery of Lithium from Waste Lithium Iron Phosphate for Preparation of Lithium Carbonate[J]. Mining and Metallurgical Engineering, 2023 , 43 (3) : 106 -109 . DOI: 10.3969/j.issn.0253-6099.2023.03.024
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Year 2023 volume 43 Issue 3
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.03.024
  • Receive Date：2022-11-27
  • Online Date：2026-03-05
  • Published：2023-06-01
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  • Received：2022-11-27
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    1.School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China
    2.Henan Fuxin Energy Environmental Protection Co Ltd, Jiaozuo 454000, Henan, 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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