METHOD OF ETHYL ALCOHOL RECTIFICATION Russian patent published in 1997 - IPC

FIELD: alcohol industry, particular, methods of alcohol rectification. SUBSTANCE: reflux from concentration section and epurate from fractionating column flow by gravity to the upper tray of boiling-out section with boiling temperature or close to it. The technical result is attained due to the fact that in the known method of ethyl alcohol rectification including boiling-out and concentration of alcohol in column with boiling-out and concentration sections, the pressure of 70-80 kPa is maintained above the upper tray of column. EFFECT: higher efficiency.