Production device containing two-stage molecular distillation

The utility model discloses a production device containing two-stage molecular distillation, relates to the technical field of molecular distillation, aims to solve the problems of excessive single raw material, easy coking in reaction, low yield and the like in the traditional synthesis process of sucrose octaacetate, and comprises a reaction kettle and a plurality of groups of distillation devices, the reaction kettle and the plurality of groups of distillation devices are sequentially connected in series; two-stage distillation is carried out on a reaction product in a reaction kettle, separation can be realized below a boiling point by utilizing different molecular weights of two molecules, namely large difference of free paths of gas-phase molecules, namely high-temperature distillation can be avoided to realize a high-vacuum characteristic, and the characteristic can also reduce the distillation temperature, so that coking and discoloration can be prevented; acetic acid can be distilled out through the