Phenolic wastewater mainly comes from various chemical enterprises that use coal and petroleum as raw materials. Refineries, coal coking plants, coal processing plants, coal gasification plants, coal liquefaction plants, coal to olefin plants, petrochemical plants, etc. are major emitters of phenolic wastewater Untreated phenolic substances are difficult to degrade and highly toxic. Even trace amounts of phenolic substances in water can cause fatal harm to aquatic organisms. The treatment of phenolic wastewater has always been a major challenge faced by related chemical enterprises The existing methods for treating industrial phenol containing wastewater include stripping method, extraction method, adsorption method, ion exchange method, chemical coagulation method, chemical oxidation method, chemical reduction method, biological method, etc. However, there are still problems such as high energy consumption, expensive equipment, and secondary pollution when using the above methods to treat high salt phenol containing wastewater. Therefore, the research hotspot of wastewater treatment focuses on whether it is possible to develop technologies with economic, safety, and no secondary pollution advantages. The application of extraction method to treat phenol containing wastewater, where the phenols in the wastewater enter the extraction phase, can be recovered by distillation of the extraction phase, and can be further improved=“ https://www.hzdcuiqu.com/article/cqjdxz.html Extraction agentregeneration. Therefore, application