Clean and Efficient Recovery of Lithium from Al-Li Alloys via Vacuum Fractional Condensation

Autor: Qu, Lei Shi, Zou Peng, Ping Ning, Xin Sun, Kai Li, Huan Zhang, Tao
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Separations; Volume 10; Issue 7; Pages: 374
ISSN: 2297-8739
DOI: 10.3390/separations10070374
Popis: Al-Li alloys are ideal structural materials for the aerospace industry. However, an increasing number of Al-Li alloys have reached the end of their service life and must be recycled. Unfortunately, when vacuum distillation is used to separate Al-Li alloys, metallic lithium is difficult to condense and collect. Therefore, theoretical and experimental research on lithium condensation conditions under vacuum and vacuum distillation and condensation of Al-Li alloy to prepare metallic lithium were carried out. The results show that the optimal condensation temperature range for lithium is between 523 and 560 K. More than 99.5% metallic lithium and more than 99.97% aluminum were obtained from the Al-7.87%wt Li alloy through vacuum distillation condensation. The direct yield of lithium was above 80%. This paper, therefore, provides a new and improved method for the preparation of metallic lithium.
Databáze: OpenAIRE
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