Method for co-producing phenyl phosphine dichloride and diphenyl phosphine chloride

The invention discloses a method for co-producing phenyl phosphine dichloride and diphenyl phosphine chloride. According to the method, simple substance phosphorus and chlorobenzene are adopted as raw materials, one-step reaction is performed in a closed reactor at 320-400 DEG C under the protection of inert gas under the action of triphenylphosphine to obtain the phenyldichlorophosphine and the diphenyl chlorophosphine, the raw material utilization rate is high, the cost is low, and the energy consumption is low. The decomplexing step is not needed, no solid waste is generated, the method is green and environment-friendly, and the problems of low product yield and safety risk caused by pressure increase due to disproportionation reaction of phenylphosphine dichloride at high temperature in the prior art are solved. 本发明公开了一种联产苯基二氯化膦和二苯基氯化膦的方法，采用单质磷和氯苯为原料，在三苯基膦作用下在惰性气体保护下在密闭反应器内320-400℃一步反应得到苯基二氯化膦和二苯基氯化膦，原料利用率高，成本低，能耗低，不需要解络步骤且无固体废弃物产生，绿色环保，抑制了现有技术高温下苯基二氯化膦会歧化反应导致产物收率低且压力增加从而产生安全风险的问题。