which can form deep eutectic solvent with phenols with the removal efficiencies more than
90%. The influence of the extraction agent structure was explored, and different substitutes were investigated.
The key experimental conditions, such as reaction time, reaction temperature, and mole ratio of
extraction agent to phenols were studied. The hydrogen bond between phenols and extraction agent is
the reason for the formation of DES, and this was proved based on analyzing the chemical bonds of product
by using FT-IR. The extraction agents exhibited good recycling property. Finally, the experimental
process was simulated by Aspen Plus, and a specific separation process and technology was proposed.