SINGLE-STEP METHOD OF PRODUCING ACETALDEHYDE FROM ETHYLENE AND ACID Russian patent published in 2012 - IPC C07C47/07 C07C45/34 B01J23/44 B01J23/72 B01L7/04 

FIELD: chemistry.

SUBSTANCE: invention relates to a single-step method of producing acetaldehyde via oxidation of ethylene in the presence of aqueous catalyst solution consisting of copper chloride and palladium chloride solution, while maintaining circulation of the aqueous catalyst solution in a reactor with a recirculating loop consisting of a reactor and a fog trap, characterised by that the entire outer wall of the reactor with a recirculation loop is heat insulated and its part which is under pressure is made from material which is resistant to corrosion by the aqueous catalyst solution or from ordinary material which is not resistant to corrosion by the aqueous catalyst solution, wherein the inner wall of the reactor is coated with corrosion-stable material having sufficient thermal stability at reaction temperature.

EFFECT: use of the present method improves volume-time-output factors, thereby increasing efficiency of the apparatus.

7 cl, 1 dwg