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Thermoreversible (Ionic-Liquid-Based) Aqueous Biphasic Systems.

ABSTRACT: The ability to induce reversible phase transitions between homogeneous solutions and biphasic liquid-liquid systems, at pre-defined and suitable operating temperatures, is of crucial relevance in the design of separation processes. Ionic-liquid-based aqueous biphasic systems (IL-based ABS) have demonstrated superior performance as alternative extraction platforms, and their thermoreversible behaviour is here disclosed by the use of protic ILs. The applicability of the temperature-induced phase switching is further demonstrated with the complete extraction of two value-added proteins, achieved in a single-step. It is shown that these temperature-induced mono(bi)phasic systems are significantly more versatile than classical liquid-liquid systems which are constrained by their critical temperatures. IL-based ABS allow to work in a wide range of temperatures and compositions which can be tailored to fit the requirements of a given separation process.

SUBMITTER: Passos H

PROVIDER: S-EPMC4740753 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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Thermoreversible (Ionic-Liquid-Based) Aqueous Biphasic Systems.

Passos Helena H Luís Andreia A Coutinho João A P JA Freire Mara G MG

Scientific reports 20160204

The ability to induce reversible phase transitions between homogeneous solutions and biphasic liquid-liquid systems, at pre-defined and suitable operating temperatures, is of crucial relevance in the design of separation processes. Ionic-liquid-based aqueous biphasic systems (IL-based ABS) have demonstrated superior performance as alternative extraction platforms, and their thermoreversible behaviour is here disclosed by the use of protic ILs. The applicability of the temperature-induced phase s ...[more]

PMID: 26843320

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