Aliphatic and Aromatic Separation using Deep Eutectic Solvents as Extracting Agents
In this work, two Deep Eutectic Solvents (DES) were prepared and used to separate Toluene from Octane using liquidliquid extraction. The DESs were formed from Tetrabutylammonium Bromide (TBAB) as a salt with Polyethylene Glycol 200 (PEG200) and Polyethylene Glycol 600 (PEG600) as Hydrogen Bond Donors (HBD). The extraction was done under atmospheric pressure at 30, 40 and 50 oC. Solute distribution coefficient and selectivity were calculated and used to evaluate the performance of the DESs. Analysis of the raffinate phase showed no traces of the DESs in the raffinate phase. The distribution coefficient and selectivity of the investigated systems showed that the performance of PEG600 DES is better than PEG200.