The recovery method of the homogeneous molybdenum complex catalyst of epoxidation of propylene

The invention discloses a kind of recovery methods of the homogeneous molybdenum complex catalyst of epoxidation of propylene.This method is using propylene ring oxidation reaction concentrate as raw material, resource utilization epoxidation of propylene produces molybdenum complex catalyst used when propylene oxide by way of precipitation reaction, separation of solid and liquid, drying and roasting, and organic ligand can be ethylene glycol, isooctyl acid or acetylacetone,2,4-pentanedione etc..The molybdenum recovery of this method can reach 90% or more, and the quality level that molybdenum ash can reach commercially available molybdenum trioxide is obtained by low-temperature bake, while can also solve the easy fouling of equipment existing for traditional recovery process, invest the problems such as high.