Method for separating mixed butyladehyde and catalyst produced from propene hydroformylation reaction

The invention discloses a separating method of propone hydroformylation composite butyladehyde and catalyst, which is characterized by the following: using evaporator with built-in cooling pipe; separating gas-phase material flow of propone, propane and butyladehyde in the composite solution of reacting product and catalyst; discharging from the top of evaporator; flowing composite butyladehyde along cooling pipe; collecting; flowing butyladehyde polymer, non-evaporated butyladehyde, rhodium catalyst and phosphorous ligand composite solution along heat pipe wall and collecting.