Affiliation:
1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninskii pr., 119991 Moscow, Russia
Abstract
This article is devoted to a brief review of the modelling of liquid membrane separation methods, such as emulsion, supported liquid membranes, film pertraction, and three-phase and multi-phase extraction. Mathematical models and comparative analyses of liquid membrane separations with different flow modes of contacting liquid phases are presented. A comparison of the processes of conventional and liquid membrane separations is carried out under the following assumptions: mass transfer is described by the traditional mass transfer equation; the equilibrium distribution coefficients of a component passing from one of the phases to another are constant. It is shown that, from the point of view of mass transfer driving forces, emulsion and film pertraction liquid membrane methods have advantages over the conventional conjugated extraction stripping method, when the mass-transfer efficiency of the extraction stage is significantly higher than the efficiency of the stripping stage. The comparison of the supported liquid membrane with conjugated extraction stripping showed that when mass-transfer rates on the extraction and stripping sides are different, the liquid membrane method is more efficient, while when they are equal to each other, both processes demonstrate the same results. The advantages and disadvantages of liquid membrane methods are discussed. The main disadvantages of liquid membrane methods—low throughput and complexity—can be overcome by using modified solvent extraction equipment to carry out liquid membrane separations.
Funder
Ministry of Science and Higher Education of the Russian Federation as part of the State Assignment of the Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences
Subject
Filtration and Separation,Chemical Engineering (miscellaneous),Process Chemistry and Technology
Reference33 articles.
1. Liquid film pertraction—A liquid membrane preconcentration technique;Lazarova;Talanta,1992
2. The three-phase liquid extraction or the liquid membranes;Boyadshiev;Isot. Isot. Environ. Health Stud.,1984
3. Recovery of L-lysine from dilute water solutions by liquid pertraction;Boyadzhiev;Biotechnol. Bioeng.,1991
4. A comprehensive review of emulsion liquid membrane for toxic contaminants removal: An overview on emulsion stability and extraction efficiency;Admawi;J. Environ. Chem. Eng.,2023
5. Zamouche, M., Tahraoui, H., Laggoun, Z., Mechati, S., Chemchmi, R., Kanjal, M.I., Amrane, A., Hadadi, A., and Mouni, L. (2023). Optimization and prediction of stability of emulsified liquid membrane (ELM): Artificial neural network. Processes, 11.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献