Recovery of lithium from aqueous solutions by evaporation and precipitation and stability of the resulting compounds in their storage in air

Волкова, Т. С.; Рудских, В. В.; Орлова, В. А.; Тананаев, И. Г.

doi:10.1134/s1070427215090025

Cited by 7 publications

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“…This method could be considered in a future study since a certain amount of divalent metal impurities were observed in the present study. Moreover, Volkova et al reported that Li 2 CO 3 has higher stability than the other lithium salts, such as LiCl, LiNO 3 , and Li 2 SO 4 , when stored in air, suggesting that recovery of lithium as Li 2 CO 3 can be a favorable process route for lithium recycling. Furthermore, the yield can be increased with the introduction of ethanol and by raising the precipitation temperature .…”

Section: Resultsmentioning

confidence: 99%

Lithium Recovery by Precipitation from Impure Solutions – Lithium Ion Battery Waste

et al. 2018

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Hydrochloric acid (HCl) leaching solutions were investigated with the aim of recovering the lithium present in industrial battery waste. The lithium‐rich solution after HCl leaching of battery waste contains major impurities such as iron, nickel, cobalt, manganese, aluminum, and copper. This composition was used as a model system to prepare a synthetic solution for lithium recovery by precipitation. The precipitation results indicated that the feeding rate of carbonate and stirring rate had an effect on particle size distribution. Uniform particles were obtained with a semi‐batch process. A faster carbonate feeding rate can result in a smaller particle size due to the high supersaturation degree and chemical reaction rates.

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Section: Resultsmentioning

confidence: 99%

Lithium Recovery by Precipitation from Impure Solutions – Lithium Ion Battery Waste

et al. 2018

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“…Therefore, separating lithium from salt lake brines has attracted more and more attention . Various traditional separation methods have been used for recovery of lithium from salt lake brines, such as precipitation method, ion exchange, selective semipermeable membrane, and evaporative crystallization. − Since Li and Mg are in a diagonal direction in the periodic table of elements, they have similar physical/chemical properties. That is, the large amount of magnesium chloride in salt lake brine is not conducive to the extraction of lithium by traditional methods.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Lithium Ions from Salt Lake Brine with a High Magnesium/Lithium Ratio Using Heteropolyacid Ionic Liquid

Wang

Liu

Fan

et al. 2018

ACS Sustainable Chem. Eng.

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A fluoride-free ionic liquid 1-butyl-3-methylimidazolium phosphotungstate ([Bmim] 3 PW 12 O 40 ) was synthesized and first used as co-extraction reagent for recovery of lithium ions from salt lake brine with a high Mg/Li ratio. Fourier transform infrared spectra (FT-IR), nuclear magnetic resonance (NMR) and thermogravimetric analysis (TGA) were used for characterizations of the prepared ionic liquid. Tributyl phosphate (TBP), [Bmim] 3 PW 12 O 40 , and dimethyl phthalate (DMP) were used as extractant, co-extraction reagent, and diluent, respectively. Effects of molar ratio of [Bmim] 3 PW 12 O 40 to Li + , O/A phase ratio, volume fraction of TBP,and carbon chain length of ionic liquid on extraction efficiency and separation factor of Li + were investigated. The overall extraction efficiency of Li + was 99.23% after five stages cross-current extraction experiments under optimal conditions. The washing and stripping experiments of the organic phase were conducted, and the parameters were optimized. The reusability of the organic phase was investigated. A total of 10 regeneration cycles of extraction processes showed that the organic phase was highly stable for selective extraction of Li + . Finally, the extraction mechanism using the proposed extraction system was also explored. The results showed that the highly selective extraction of lithium ion was realized by cation exchange and coordination between TBP and Li + .

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Desalination Concentrate Management and Valorization Methods

Sánchez

Matos

2018

Sustainable Desalination Handbook

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Recovery of lithium from aqueous solutions by evaporation and precipitation and stability of the resulting compounds in their storage in air

Cited by 7 publications

References 0 publications

Lithium Recovery by Precipitation from Impure Solutions – Lithium Ion Battery Waste

Lithium Recovery by Precipitation from Impure Solutions – Lithium Ion Battery Waste

Recovery of Lithium Ions from Salt Lake Brine with a High Magnesium/Lithium Ratio Using Heteropolyacid Ionic Liquid

Desalination Concentrate Management and Valorization Methods

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