METHOD AND DEVICE FOR PRODUCTION OF ACRYLAMIDE Russian patent published in 2018 - IPC C12P13/02 C12M1/34 C12M1/36 

FIELD: chemistry.

SUBSTANCE: method for the production of acrylamide from acrylonitrile and a device for carrying out the above method are provided. The device contains two or more connected in series A and B reactors, pipelines for supplying acrylonitrile, water and a catalyst in the upper stream of the reactor, a pipeline for releasing a part of the reaction liquid from the bottom of the reactor thread, a detection unit to determine the level of the reaction liquid in A reactor, and a control unit to regulate the volume of the reaction liquid. Moreover, the reactor A includes a circulating pipeline and a connecting hole with the reactor B located below the surfaces of the reaction liquids. The method includes regulating the volume of the reaction fluid in the reactor B through the control level of the reaction liquid in the reactor A, where the level of the reaction liquid in the reactor A is controlled by adjusting the volume of the reaction fluid that must be released and/or returned to the reactor A by circulation.

EFFECT: invention provides a duration of incubation of the reaction liquid in the reactor suitable for the production speed, reducing the amount of the catalyst used.

8 cl, 1 dwg, 1 tbl, 4 ex