Method for separating quaternary mixture of acetone, methylbenzene, sodium phenate and water

The invention relates to a method for separating a quaternary mixture of acetone, toluene, sodium phenate and water, in particular to a method for separating a mixed material consisting of the following components in percentage by mass: 20-40% of acetone, 10-30% of toluene, 5-20% of sodium phenate and the balance of water. The quaternary mixture is separated through the operations of acetone removal through distillation, toluene and water removal through azeotropic distillation, solid-liquid separation, condensation and drying. The method provided by the invention realizes resource separation and recovery of the mixture of acetone, toluene, sodium phenate and water, the separation process is reasonable, and the flow is simple. According to the method, the separation steps are reduced, the energy consumption is reduced, the utilization rate of valuable components is high, continuous operation is easy to realize, the separated product can be subjected to resource utilization, and the method is a resource separa