Purification method of high-purity urotropine for phenolic resin

The invention relates to the technical field of purification, in particular to a purification method of high-purity urotropine for phenolic resin. Comprising the following steps: S1, introducing a urotropine solution into an adsorption device filled with polishing resin for adsorption to prepare an intermediate purified product I; s2, introducing the intermediate purified product I into an adsorption device filled with weakly alkaline anion exchange resin for adsorption to prepare an intermediate purified product II; and S3, concentrating and drying the intermediate purified product II to obtain purified urotropine. According to the method, the urotropine solution is sequentially introduced into the adsorption device filled with the polishing resin and the adsorption device filled with the alkalescent anion exchange resin, and then the purified intermediate product is concentrated and dried, so that the concentration of impurities in the prepared urotropine is greatly reduced. 本发明涉及纯化技术领域，具体涉及一种酚醛树脂用高纯乌洛托品的纯化