Production equipment and production method of sucrose-6-ester

Abstract

The invention provides production equipment and a production method of sucrose-6-ester. The production equipment comprises a distillation separation tank, a reaction tank and a condensate water collection tank, wherein the distillation separation tank is arranged above the reaction tank and the condensate water collection tank; the distillation separation tank comprises a shell, a hot roller distillation device and the like; the hot roller distillation device comprises a plurality of heating rollers. The plurality of heating rollers are horizontally and tightly arranged between the front and rear side walls of the shell up and down; two ends of the U-shaped plate are fixedly arranged on the front and rear side walls of the bottom of the shell; the plurality of heat exchange pipes are arranged in an inner cavity formed by the U-shaped plate and penetrate through the front and rear side walls of the shell; a feeding pipe is arranged at the top of the shell, a condensate water outlet pipe is arranged on the bottom surface of the shell, and a steam residual liquid discharging pipe penetrates through the bottom surface of the shell and is connected with the U-shaped plate. The condensate water collecting tank is connected with a condensate water outlet pipe; and the reaction tank is connected with a residual steaming liquid discharge pipe. The continuous production of the sucrose-6-ester is realized, the volume of production equipment is reduced, the occupied area is saved, and the yield of the sucrose-6-ester is improved.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to production equipment and a production method of sucrose-6-ester. Background technique [0002] Sucralose belongs to a new generation of sweeteners, which has the advantages of high sweetness, no calories, good stability and high safety, and has a very broad market prospect. Sucralose-6-ester is an important intermediate in the production of sucralose. [0003] In the prior art, the process flow of the method for synthesizing sucrose-6-ester mainly includes: mixing sucrose, an aprotic polar solvent and an organotin esterification accelerator into a first reaction mixture; then mixing the first reaction mixture in a specific Under temperature, pressure environment, contact with gas or solvent vapor that can remove water and keep certain reaction time, remove moisture therefrom to obtain the second reaction mixture; Then add carboxylic anhydride to the second rea...

AI Technical Summary

Problems solved by technology

This method requires the use of gas or solvent vapor that can remove water. The existence of this link seriously affects the continuity of the synthetic sucrose-6-ester production process, increases the production cycle, reduces production efficiency, and consumes a large amount of water that can be removed. gases or solvents, greatly increasing production costs and energy consumption

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