Green Solvents for Liquid-Liquid Extraction: Recent Advances and Future Trends

¹ Chemical Engineering Department, Adamson University, 900 San Marcelino St., Ermita, Manila, Philippines
² Nanotechnology Research Laboratory, Department of Chemical Engineering, University of the Philippines Diliman, Quezon City, Philippines
³ Department of Chemical Engineering, University of Santo Tomas, España Blvd., Sampaloc, Manila, Philip-pines

Academic Editor: Manoj Gupta

Published: 15 November 2023 by MDPI in The 4th International Electronic Conference on Applied Sciences session Nanosciences, Chemistry and Materials Science

https://doi.org/10.3390/ASEC2023-16278

Abstract:

The use of environmentally friendly solvents for liquid-liquid extraction offers a promising avenue for promoting sustainability in various industries. Green solvents, including ionic liquids, deep eutectic solvents, supercritical fluids, and biobased solvents, offer several advantages compared to the traditional solvents in the present time. These solvents possess properties such as low toxicity, biodegradability, and reduced environmental impact, making them highly desirable for liquid-liquid extraction processes. Through careful adjustments in composition and physicochemical properties, these solvents can be customized to achieve efficient and selective extraction of desired compounds. Additionally, recent advances in green solvents often contribute to improved energy efficiency, reduced waste production, and the potential for developing novel products with unique characteristics. By embracing green solvents for liquid-liquid extraction, industries can actively contribute to sustainable development, minimize environmental harm, and support the transition towards an eco-friendlier future.

Keywords: green chemistry; green solvent; liquid-liquid extraction; ionic liquids; deep eutectic fluids; bio-based solvent; supercritical solvent

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Comments on this paper

David Griego

5 December 2023

I appreciate your research. However, I want to add some information that I researched. As I know, natural and renewable solvents derived from biomass, such as vegetable oils, terpenes, and bio-based ionic liquids, have gained attention as green alternatives. These solvents are renewable, biodegradable, and often exhibit low toxicity. They can be derived from sustainable sources and offer advantages in terms of reduced environmental impact. Moreover, Supercritical fluids, such as carbon dioxide (CO2), offer several advantages as green solvents for liquid-liquid extraction.CO2 is non-toxic, non-flammable, and readily available. Its unique properties can be harnessed by adjusting pressure and temperature to optimize solubility and selectivity. Co-solvents or modifiers can be added to enhance the extraction efficiency of CO2.

Jimmaira Angel Almohasin