Table 6.

Separation factor for several solvents in phenol extraction from aqueous phase at 298.2 K.

System	Solvent	Separation factor (Ref.)
Water + phenol + cumene	Cumene	93.41–240.5827
Water + phenol + imidazolium IL	[Hmim][NTf2]	134.68–948.7536
Methyl tert − butyl Ketone + phenol + water	Methyl tert − butyl ketone	1334–395340
Water + phenol + dibutyl ether	Dibutyl ether	50.53–1182.3941
Water + phenol + 1-octanol	1-octanol	99.5–495.542
Water + phenol + cyclohexanone	Cyclohexanone	126.3–168.042
Water + phenol + 2-ethyl-1-hexanol	2-ethyl-1-hexanol	131.9–398.142
Mesityl oxide + phenol + water	Mesityl oxide	1007–259943
Choline IL + phenol + water	[choline][NTF2]	27.8–41.3y44
Water + phenol + DES	DES	1125.02–2198.14 (present work)