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Metal Recovery from Spent LiMn2O4 Cathode Material Based on Sulfating Roasting with NaHSO4 center dot H2O and Water Leaching
Liu, Zhenning1; Chen, Huaijing2; Wang, Dahui1; Zhou, Xiaofang3; Hu, Pingping1
刊名JOURNAL OF SUSTAINABLE METALLURGY
2022
卷号8期号:2页码:684-699
关键词Spent lithium-ion batteries LiMn2O4 Metal recovery Sulfating roasting Water leaching
ISSN号2199-3823
DOI10.1007/s40831-022-00519-7
英文摘要The reuse of waste materials helps to alleviate the pressure on sustainable economic development caused by the rapid consumption of natural resources. In this paper, a new process for the recovery of Li and Mn from spent LiMn2O4 cathode materials was studied. LiMn2O4 was mixed with NaHSO4 center dot H2O according to a certain mass ratio and roasted, and then the roasted products were leached with deionized water. The chemical changes during roasting were studied by thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscopy. After roasting, Li exists in the form of LiNaSO4, while the form of Mn is affected by the content of NNaHSO4 center dot H2O in the mixture. Within the corresponding temperature range, the chemical reaction between LiMn2O4 and NaHSO4 center dot H2O can proceed spontaneously. During the reaction, the following reactions will occur in the II and IV stages: NaHSO4 center dot H2O -> NaHSO4 + H2O(g), Na2S2O7 -> Na2SO4 + SO3 (g) and reaction of different metal oxides with SO3, and their average activation energies are 153.07 kJ/mol and 533.81 kJ/mol, respectively, and the restrictive link is three-dimensional diffusion. The roasted products were leached with deionized water, the extraction rate of Li and Mn elements increases with the decrease of mixing mass ratio, when the mass ratio of LiMn2O4 to NaHSO4 center dot H2O is 1:1.07, the roasting temperature is 873 K, the roasting time is 0.5 h, under the condition of water leaching temperature of 333 K, the extraction rates of Li and Mn were 96.6% and 9.7%, respectively. [GRAPHICS] .
WOS研究方向Science & Technology - Other Topics ; Metallurgy & Metallurgical Engineering
语种英语
出版者SPRINGER
WOS记录号WOS:000773836900001
内容类型期刊论文
源URL[http://ir.lut.edu.cn/handle/2XXMBERH/158099]  
专题理学院
材料科学与工程学院
作者单位1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China;
2.Lanzhou Univ Technol, Coll Sci, Lanzhou 730050, Peoples R China;
3.Gansu Prov Prod Qual Supervis & Inspect Res Inst, Lanzhou 730050, Peoples R China
推荐引用方式
GB/T 7714
Liu, Zhenning,Chen, Huaijing,Wang, Dahui,et al. Metal Recovery from Spent LiMn2O4 Cathode Material Based on Sulfating Roasting with NaHSO4 center dot H2O and Water Leaching[J]. JOURNAL OF SUSTAINABLE METALLURGY,2022,8(2):684-699.
APA Liu, Zhenning,Chen, Huaijing,Wang, Dahui,Zhou, Xiaofang,&Hu, Pingping.(2022).Metal Recovery from Spent LiMn2O4 Cathode Material Based on Sulfating Roasting with NaHSO4 center dot H2O and Water Leaching.JOURNAL OF SUSTAINABLE METALLURGY,8(2),684-699.
MLA Liu, Zhenning,et al."Metal Recovery from Spent LiMn2O4 Cathode Material Based on Sulfating Roasting with NaHSO4 center dot H2O and Water Leaching".JOURNAL OF SUSTAINABLE METALLURGY 8.2(2022):684-699.
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