Method and device for recovering palladium catalyst in coupling reaction

The invention discloses a method and a device for recovering a palladium catalyst in a coupling reaction, and relates to the technical field of palladium catalyst recovery, the device comprises a recovery cylinder, an auxiliary filter is arranged in the middle of the upper surface of the recovery cylinder, and a feeding pipe and a liquid discharge pipe are respectively mounted at the top and the bottom of the recovery cylinder. According to the method and the device for recovering the palladium catalyst in the coupling reaction, a reaction mixed solution of the coupling reaction is guided into the recovery barrel through the feeding pipe, the large-particle-size palladium catalyst in the mixed solution is filtered by using the inner gathering filter plate and the material gathering filter barrel, and the palladium catalyst blocked and adhered on the inner gathering filter plate is scraped by using the auxiliary filter; according to the palladium catalyst recycling device, the filtering holes are prevented fro