Production dioctyl terephthalate's device

The utility model relates to a production dioctyl terephthalate's device. It includes reation kettle, the exit end that once adds pure pipeline links to each other with the reation kettle top, the exit end of pure pipeline and once linking to each other of first stop valve rear are mended with pure pipeline to the secondary, the one end of first pipeline links to each other with reation kettle's top, the other end of first pipeline links to each other with the lower part of esterification column, the one end of second pipeline links to each other with the top of esterification column, the other end of second pipeline links to each other with the entry of condenser, the top that third pipeline and alcohol -water separation jar are passed through in the export of condenser links to each other, the bottom of alcohol -water separation jar links to each other with the fourth pipeline, upper portion one side that the alcohol phase overflow mouth of alcohol -water separation jar one side passes through U -shaped pip