Preparation method of ultra-high crosslinking type adsorptive resin modified by N-methyl acetamido

The invention relates to a preparation method of ultra-high crosslinking type adsorptive resin modified by N-methyl acetamido. Lewis acid is added into a chlorine ball swollen in a solvent to be as a catalyst, and Friedel-Crafts reaction is carried out at 80 to 100 DEG C so as to obtain the ultra-high crosslinking type adsorptive resin; and the obtained resin is further aminated and acetylated soas to prepare the ultra-high crosslinking type adsorptive resin modified by the N-methyl acetamido. According to the preparation method of the ultra-high crosslinking type adsorptive resin modified by the N-methyl acetamido, the surface of the ultra-high crosslinking type adsorptive resin is loaded with the N-methyl acetamido, which can obviously enhance the adsorption capacity of the resin to weak polar and polar substances (such as phenol and salicylic acid). The ultra-high crosslinking type adsorptive resin modified by the N-methyl acetamido has an extensive application prospect in the fields of the treatment, the recycle and the like of phenols and organic acid wastewater.