Ionic Liquid Recovery Alternatives in Ionic Liquid-Based Three-Phase Partitioning (ILTPP)
authors Alvarez-Guerra, E; Irabien, A; Ventura, SPM; Coutinho, JAP
nationality International
journal AICHE JOURNAL
author keywords ionic liquid-based three-phase partitioning; interfacial partitioning; protein recovery; ionic liquid consumption; recycle
keywords AQUEOUS BIPHASIC SYSTEMS; 2-PHASE SYSTEMS; SEPARATION; PURIFICATION; LACTOFERRIN; EXTRACTION; SALTS; PENICILLIN; PROTEINS; HEPTANE
abstract Ionic liquid-based three-phase partitioning (ILTPP) is a promising technique to recover high-added value proteins at the liquid-liquid interface. Its economic and environmental performance highly depends on the net ionic liquid consumption. Alternatives to maximize the fraction of ionic liquid that can be recycled are studied. It is demonstrated that the addition of extra salt, previously proposed in literature, has a very limited effect on ionic liquid recovery for relatively high protein concentrations in the feed stream, and that it may even lead to an increase of the ionic liquid losses under certain conditions. However, small additions of salt are shown to be effective and profitable from an economic point of view. Vacuum evaporation is shown to allow for the complete ionic liquid and salt recovery, reinforcing the sustainability and viability of ILTPP processes. (c) 2014 American Institute of Chemical Engineers AIChE J, 60: 3577-3586, 2014
publisher WILEY-BLACKWELL
issn 0001-1541
year published 2014
volume 60
issue 10
beginning page 3577
ending page 3586
digital object identifier (doi) 10.1002/aic.14530
web of science category Engineering, Chemical
subject category Engineering
unique article identifier WOS:000341767700016
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journal impact factor 3.519
5 year journal impact factor 3.625
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