The Adsorption of Phenol by High Boiling Solvent Lignin

The adsorptions of phenol by high boiling solvent (HBS) lignin were investigated in different conditions. The concentration of phenol was tested by 4-AAP(4-Aminoantipyrine) UV-Visible spectrophotometric methods. The adsorptions of phenol by HBS lignin were investigated in different conditions. The adsorbing effect is better in the condition of higher phenol concentration, lower temperature, or lower pH. By comparison with pyrolignin, HBS lignin has better adsorbing effect to phenol under the same adsorption condition. The adsorption property of HBS lignin is used to deal with phenol-water system. It is useful not only to remove phenol in the water, but also to extend the application of lignin resources.