Recent method of synthesizing 3,5-xylenol is sulpho alkaline fusion of dimethylbenzene, it is a very complicated procedure with serious pollution and low-pure products.

• 国内目前生产工艺是间二甲苯的磺化碱熔法，该方法工艺过程复杂、污染严重，并且产品纯度不高。