DOTP plasticizer esterification reaction device

The utility model relates to a plasticizer apparatus for producing, concretely relates to DOTP plasticizer esterification reaction device, including the esterifying kettle, buffer tank, esterifying kettle, esterification column, condenser, alcohol -water separation jar, the solenoid valve that turns on the water, secondary sedimentation jar in with and the water washing tank consecutive, the esterifying kettle top is passed through the feed valve and is linked to each other with the feed inlet, esterification column, U type pipe are consecutive with the alcohol -water separation jar, are provided with level meters on the alcohol -water separation jar. The utility model discloses the productivity is increased substantially, has reduced investment cost, and installs operating efficiency and improve, and the product conversion rate improves, the energy consumption reduces, rate of equipment utilization and product output improve and be stable.