Phase equilibrium and evaporation process simulation for the lithium recovery from NaCl-LiCl-H2O system with high presence of organic NMP

Lian, Liming; Su, Xiaohua; Chen, Hang; Yu, Jianguo

doi:10.1016/j.desal.2023.116703

Cited by 3 publications

(1 citation statement)

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“…The classical isothermal solution saturation method − was adopted to measure the equilibrium solid–liquid diagrams of the GLA-NaCl-H 2 O system at 278.15, 313.15, and 333.15 K, and the GLA-NaCl-H 2 O/CH 3 OH system at 333.15 K. The specific operations are as follows: (1) from the beginning of the boundary binary system, a series of ternary systems with different compositions were prepared by gradually adding a third salt at the binary saturation point. (2) To ensure phase equilibrium, all ternary systems were stirred for 20 h at a speed of 200 rmp.…”

Section: Materials and Methodsmentioning

confidence: 99%

Solid–Liquid Equilibrium of GLA-NaCl System and Its Application for Separating GLA and NaCl

Li,

Wang,

et al. 2024

Ind. Eng. Chem. Res.

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To separate and purify glufosinate-ammonium (GLA) and NaCl during the production of GLA, the solid−liquid equilibrium of GlA-NaCl-H 2 O system at 278.15, 313.15, and 333.15 K and the solid−liquid equilibrium of GlA-NaCl-H 2 O/CH 3 OH system at 333.15 K were measured by the isothermal dissolution method. The equilibrium solid phases were determined and characterized by Schreinemaker's wet residue method and X-ray diffraction. The results show that the phase diagram contains one invariant point, two univariate curves, and two single-salt crystallization regions corresponding to GLA and NaCl, respectively. Moreover, the influence of temperature and solvent on the thermodynamic properties of the GLA-NaCl system was investigated. It was found that temperature has little influence on the thermodynamic solubility and crystalline phase area of the GLA-NaCl system, while the solvent effect has an apparent influence. A fraction crystallization technology coupling evaporation crystallization and antisolvent crystallization was proposed to extract NaCl and GLA from a GLA and NaCl mixed solution.

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Section: Materials and Methodsmentioning

confidence: 99%