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(A) Operating costs per tonne of recovered IL and (B) total recovery costs estimated for different ILs and water:IL loadings. Reproduced from ref (323). Copyright 2021 ACS. This evaluation was conducted using flash unit operating under optimized conditions, namely at 150 °C and 0.7 bar for [emim][MeCOO] and 160 °C and 0.5 bar for [choline][MeCOO].
