期刊
ULTRASONICS SONOCHEMISTRY
卷 74, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ultsonch.2021.105549
关键词
Ionic liquid membrane; Ultrasonic; Alkali chloride; Excess molar volume; Speed of sound; Isentropic compressibility
资金
- University of Tabriz grant council
An ultrasonic-assisted separation of alkali chloride salts using a hydrophobic ionic liquid membrane has been conducted, optimizing conditions such as frequency and time for efficient separation. Thermodynamic properties have been calculated to optimize the composition of the ILM for ultrasound-assisted separation.
An ultrasonic-assisted separation of alkali chloride (LiCl, NaCl, and KCl) salts have been carried out using of an hydrophobic ionic liquid membrane (ILM). The ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate and tributyl phosphate mixture have been used as ILM. An ultrasonic probe with different frequencies (25, 100, and 250) kHz have been applied as source of ultrasound generator with different times of sonication (2, 5, and 10) min in three phases system containing feed, ILM, and receiver in osmotic U-shaped tube. Also, 250, 500, and 1000 ppm of the feed (alkali chloride) concentration have been used to separate. The frequency of 250 kHz with higher sonication time provides optimum condition for separation of LiCl with lower feed concentration. The thermodynamic properties such as density and speed of sound and the related thermodynamic properties have been calculated to optimize ILM composition (x(IL) = 0.45) for ultrasound-separation.
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