Method for producing phloroglucinol

The invention relates to a method for producing phloroglucinol. The method comprises the following steps: by taking 2,6-dichlorophenol as a reaction raw material, performing a reaction in the presenceof a copper salt catalyst and a 1,2,4-trimethylbenzene solvent, performing three-gradient cooling on the obtained reaction liquid, adding hot water at a first stage and a second stage to implement layering separation, performing decoloring by using an activated carbon adsorption column, and adding a metal ion adsorbent so as to remove copper ions and potassium ions in the reaction liquid. Compared with the prior art, the method has the advantages of being high in yield, high in purity, low in metal ion concentration and simple and convenient in operation. 本发明涉及一种生产间苯三酚的方法，以2,6-二氯苯酚为反应原料，在铜盐催化剂和1,2,4-三甲基苯溶剂存在下反应，对反应液进行三梯度降温冷却，并在第一、二阶段加入热水进行分层分离，并采用活性炭吸附柱进行脱色、金属离子吸附剂以除去其中的铜离子和钾离子。与现有技术相比，本发明的具有收率高、纯度高、金属离子浓度低以及操作简单、便捷的优点。