Journal ArticleDOI
Phase Diagram of [Amim]Cl + Salt Aqueous Biphasic Systems and Its Application for [Amim]Cl Recovery†
Reads0
Chats0
TLDR
In this article, a new and effective route for the recovery of hydrophilic IL using [Amim]Cl + salt + water ABS from aqueous solutions was proposed.Abstract:
In this study, binodal curves and tie line data of [Amim]Cl + salt (K3PO4, K2HPO4, K2CO3) + water aqueous biphasic systems (ABS) were measured and correlated satisfactorily with the Merchuk equation and Othmer−Tobias and Bancroft equations, respectively. [Amim]Cl could be recovered from aqueous solutions using the ABS, and the recovery efficiency could reach 96.80 %. The recovery efficiency was influenced by the concentrations of the salts and their Homeister series: K3PO4 > K2HPO4 > K2CO3. Our method provides a new and effective route for the recovery of hydrophilic IL using [Amim]Cl + salt + water ABS from aqueous solutions.read more
Citations
More filters
Journal ArticleDOI
Aqueous biphasic systems: a boost brought about by using ionic liquids
Mara G. Freire,Mara G. Freire,Ana Filipa M. Cláudio,João M. M. Araújo,João A. P. Coutinho,Isabel M. Marrucho,Isabel M. Marrucho,José N. Canongia Lopes,José N. Canongia Lopes,Luís Paulo N. Rebelo +9 more
TL;DR: A critical review provides a judicious assessment of the available literature on ionic-liquid-based Aqueous Biphasic Systems and addresses two of the main applications of ionic liquid-based ABS: extraction of biomolecules and other added-value compounds, and their use as alternative approaches for removing and recovering ionic liquids from aqueous media.
PatentDOI
Ionic liquid pretreatment of cellulosic biomass: enzymatic hydrolysis and ionic liquid recycle
TL;DR: In this article, the authors present compositions and methods of pretreating cellulosic biomass with an ionic liquid and adding a salt containing a kosmotropic anion to facilitate separation of precipitated solids, the aqueous phase, and the ionic fluid phase.
Journal ArticleDOI
Methods for recovery of ionic liquids—A review
TL;DR: A comprehensive review of the methods used for recovery and recycling of Ionic liquids can be found in this article, where the authors present a comprehensive summary of the most common methods for Ionic liquid recovery and reuse.
Journal ArticleDOI
Ionic liquid-based aqueous two-phase systems and their applications in green separation processes
TL;DR: In this article, the effects of ionic liquid (IL)-based aqueous two-phase systems (ATPSs) are reviewed and highlighted the possible directions of future developments.
Journal ArticleDOI
Acidic Ionic Liquids as Sustainable Approach of Cellulose and Lignocellulosic Biomass Conversion without Additional Catalysts
TL;DR: A critical overview of the state of the art and perspectives of the hydrolysis and conversion of cellulose and lignocellulosic biomass using acidic ILs using no additional catalyst are provided.
References
More filters
Journal ArticleDOI
1-Allyl-3-methylimidazolium chloride room temperature ionic liquid: A new and powerful nonderivatizing solvent for cellulose
TL;DR: In this paper, a new and highly efficient direct solvent, 1-allyl-3methylimidazolium chloride (AMIMCl), has been used for the dissolution and regeneration of cellulose.
Journal ArticleDOI
Controlling the aqueous miscibility of ionic liquids: aqueous biphasic systems of water-miscible ionic liquids and water-structuring salts for recycle, metathesis, and separations.
Keith E. Gutowski,Grant A. Broker,Heather D. Willauer,Jonathan G. Huddleston,Richard P. Swatloski,John D. Holbrey,Robin D. Rogers +6 more
TL;DR: Hydrophilic ionic liquids can be salted-out and concentrated from aqueous solution upon addition of kosmotropic salts forming aqueously biphasic systems as illustrated by the phase behavior of mixtures of 1-butyl-3-methylimidazolium chloride and K3PO4.
Journal ArticleDOI
Polyethylene glycol and solutions of polyethylene glycol as green reaction media
TL;DR: Aqueous biphasic reactive extraction (ABRE) can successfully integrate the solvent properties of polyethylene glycol (PEG) and its phase-transfer characteristics into a single efficient system which can additionally be manipulated to facilitate the separation of reactants and/or catalysts from products.
Journal ArticleDOI
Aqueous two-phase systems for protein separation: Studies on phase inversion
TL;DR: In this paper, phase equilibrium studies were performed with the PEG 400phosphate system, obtaining equilibrium binodal lines, tie lines, and phase inversion points, and a method of calculation of the critical point on the binoderal curve is described.
Journal ArticleDOI
Investigation of aqueous biphasic systems formed from solutions of chaotropic salts with kosmotropic salts (salt–salt ABS)
TL;DR: In this article, phase diagrams for imidazolium-, pyridium-, and quaternary ammonium-and phosphonium-based chloride salts (all chaotropic salts) were described, and the Gibbs free energy of methylene transfer (GCH2) was also determined for 1-butyl-3methylimidazolate chloride ([C4mim]Cl)/K3PO4, K2HPO4, and K2CO3 ABS.