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- Title
锂循环产业链中锂分析方法进展.
- Authors
汤书婷; 郭冬发; 李伯平; 刘桂方; 谭靖; 曾远; 李黎; 王娅楠; 谢胜凯
- Abstract
Lithium resource exploration, mining and extraction, lithium compound production, lithium terminal product production, lithium recovery and waste disposal constitute the lithium cycle industry chain. In this industry chain, lithium resource exploration has six types of lithium deposits: salt lake lithium brines, lithium pegmatites, lithium−clays, lithium−zeolites, oil−gas field lithium brines or geothermal lithium brines, and ion-absorption lithium. Lithium end products mainly include lithium batteries, glass or ceramics, pharmaceuticals, lithium isotopes and other products. Lithium recovery mainly refers to the recovery of lithium from power lithium batteries. Other materials that are temporarily unavailable or too expensive are treated as waste. This paper summarized and reviewed the progress of 17 main analytical methods involved in the analysis of lithium in the lithium recycling industry chain. According to their principles, they are divided into four categories: wet chemical analysis, molecular and atomic spectroscopy analysis, mass spectrometry analysis and in situ analysis. Wet chemical analysis includes gravimetric, gas volume method, titration, ion selective electrode method and ion chromatography which commonly used for the detection of constant to trace lithium content in liquid samples such as alloys, pure substances, brine, geothermal water and medicine related. Molecular and atomic spectroscopic analysis includes spectrophotometry, fluorescence spectrophotometry, atomic absorption spectrophotometry, glow-discharge mass spectrometry, laser breakdown induction spectrometry, and inductively coupled plasma emission spectrometry. It can be used for the determination of constant to trace amounts of lithium resource samples, mining and smelting process products, etc., in which fluorescence spectrophotometry is not only used in the traditional energy field, but also widely used in the medical and biological field. With the development of portable instruments, liquid glow-discharge spectroscopy and laser breakdown induction spectroscopy are expected to develop special rapid identification devices and methods, and provide more on-site analysis methods for lithium resource exploration. Mass spectrometry includes inductively coupled plasma mass spectrometry and thermal ionization mass spectrometry, which can not only meet the detection of trace impurity elements in all kinds of products in the lithium cycle industry, but also can get the results of lithium isotopes. In situ methods include in situ colorimetry, Laser ablationmultiple collector-inductively coupled plasma mass spectrometry and secondary ionization mass spectrometry, which have attracted attention in the lithium cycle industry in recent years. They can analyze the distribution and migration of lithium elements in batteries, and can also analyze lithium ore resources and alloy materials to obtain ion maps, isotope information of trace elements and more solid surface information. The above 17 analytical methods cover most the analytical needs of the whole industry chain of lithium cycle, and can be selected according to the different sample characteristics and research needs in the application process.
- Subjects
LASER ablation inductively coupled plasma mass spectrometry; INDUCTIVELY coupled plasma mass spectrometry; INDUCTIVELY coupled plasma atomic emission spectrometry; TANDEM mass spectrometry; INDUCTIVELY coupled plasma spectrometry; ATOMIC absorption spectroscopy; ION selective electrodes
- Publication
World Nuclear Geoscience, 2023, Vol 40, Issue 1, p17
- ISSN
1672-0636
- Publication type
Article
- DOI
10.3969/j.issn.1672-0636.2023.01.002