Preparation method for dibutyl adipate

The invention relates to the field of chemical synthesis, and discloses a preparation method for dibutyl adipate. The preparation method is as follows: by taking FeCl3.6H2O as a catalyst and taking adipic acid and n-butyl alcohol as raw materials, generating synthesis reaction under microwave condition to prepare dibutyl adipate. The preparation method provided by the invention can effectively reduce reaction time, can improve a reaction esterification rate; and moreover, the preparation method is simple, adopts a safe reagent, and is beneficial to industrial production.