Adsorption Properties of Phenol Formaldehyde Resin of Aniline Compounds in Aqueous Solution

The adsorption of aniline, N-methylaniline and N,N-dimethylaniline on phenol formaldehyde resin(JDW-2) in aqueous solutions under static conditions has been studied. A semi-empirical rate equation adequately fits the sorption rate data of the three anilines in the initial period, that is, the adsorption is attained at about 21.5%～48.9% of equilibrium sorption. The equilibrium adsorption data for three aniline compounds in aqueous solutions are in good agreement with the Langmuir isotherm equation and Freundlich isotherm equation. The correlation coefficients are bigger than 0.99. The sorption of the three compounds in aqueous solutions is monomolecular layer adsorption with n1.