溶解
锂(药物)
感应耦合等离子体
萃取(化学)
扫描电子显微镜
阴极
化学
碱金属
浸出(土壤学)
氢氧化锂
下降(电信)
粒径
分析化学(期刊)
材料科学
无机化学
色谱法
离子
等离子体
复合材料
环境科学
计算机科学
量子力学
医学
有机化学
土壤水分
土壤科学
物理化学
内分泌学
物理
离子交换
电信
作者
Tingting Yan,Shengwen Zhong,Miaomiao Zhou,Xiaoming Guo,Jingwei Hu,Fangfang Wang,Fan-Tao Zeng,Sicheng Zuo
标识
DOI:10.1515/ntrev-2020-0119
摘要
Abstract The extraction of Li from the spent LiFePO 4 cathode is enhanced by the selective removal using interactions between HCl and NaClO to dissolve the Li + ion while Fe and P are retained in the structure. Several parameters, including the effects of dosage and drop acceleration of HCl and NaClO, reaction time, reaction temperature, and solid–liquid ratio on lithium leaching, were tested. The Total yields of lithium can achieve 97% after extraction process that lithium is extracted from the precipitated mother liquor, using an appropriate extraction agent that is a mixture of P507 and TBP and NF. The method also significantly reduced the use of acid and alkali, and the economic benefit of recycling is improved. Changes in composition, morphology, and structure of the material in the dissolution process are characterized by inductively coupled plasma optical emission spectrometry, scanning electron microscope, X-ray diffraction, particle size distribution instrument, and moisture analysis.
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