Electrochemical description of the interfacial tension between the liquid metal pad and cryolitic melts in industrial electrolysis cells

Gheribi, Aïmen E.; Phan, Anh Thu; Chartrand, Patrice

doi:10.1016/j.molliq.2022.120843

Cited by 5 publications

(1 citation statement)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Secondly, the lithium in the aluminum electrolyte may also come from the aluminum electrolysis process. To reduce the melting point of aluminum oxides, the temperature of electrolysis, and energy consumption, and improve the conductivity of electrolytes [4][5][6][7], additional lithium fluoride is required, resulting in lithium enrichment [8,9]. The effect of excessive lithium content on the stability of the electrolyte becomes more and more obvious, and it readily leads to the generation of alumina and aluminum-lithium compounds, which cause the stability of the electrolyte to deteriorate.…”

Section: Introductionmentioning

confidence: 99%

Study on Recovery of Lithium from Lithium-Containing Aluminum Electrolyte

Ji,

Cui,

Zhang

et al. 2024

Metals

View full text Add to dashboard Cite

The current process of recovering lithium from wasted aluminum electrolyte mostly entails extracting lithium from lithium-containing aluminum electrolyte by acid leaching and dissipation. Aiming at the disadvantages of the existing treatment method, such as the long process flow, environmental pollution, poor working environment, etc., we propose a new technology to extract lithium from the wasted aluminum electrolyte and systematically investigate the effects of raw material particle size, holding time, temperature and other factors on the recovery of lithium. The results show that the better process conditions for the recovery of lithium are as follows: the raw material particle size is 75~150 μm, the additive is CaCl2, the mass ratio of calcium chloride to lithium-containing aluminum electrolyte is 3:5, the reaction temperature is 1473 K, and the holding time is 3 h. After the product of the reaction is crushed and leaching is carried out by using deionized water (pH = 6.8), the temperature of the leaching is 368 K, the leaching time is 3 h, and the solid–liquid ratio is 1/3, and the leaching rate of Li can be up to 75.1%. In addition, the purity of the recovered AlF3 is more than 92.7%. This process realizes the comprehensive and efficient use of lithium-containing aluminum electrolyte and provides a new idea for the development of lithium extraction technology from lithium-containing aluminum electrolyte.

show abstract

Section: Introductionmentioning

confidence: 99%