METHOD OF PRODUCING ETHYLENE GLYCOL VIA FLUIDISED BED CATALYTIC REACTION OF OXALATE Russian patent published in 2015 - IPC C07C31/20 C07C29/149 B01J23/72 B01J29/48 B01J29/46 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing ethylene glycol in a fluidised bed reactor by bringing oxalate raw material into contact with a catalyst under the following conditions: reaction temperature of about 170°C to about 270°C, oxalate bulk speed of about 0.2 h^-1 to about 7 h^-1, hydrogen/ester molar ratio of about20-200:1, reaction pressure of about 1.5 MPa to about 10 MPa, and reaction temperature difference ΔT of about 1°C to about 15°C, to obtain an ethylene glycol-containing stream; wherein said fluidised bed catalyst is a catalyst contains the following, pts.wt: 5-80 copper and an oxide thereof, 10-90 at least one filler selected from silicon oxide, a molecular sieve or aluminium oxide, 0.01-30 bismuth and tungsten metal or oxides thereof, or cerium and niobium metal or oxides thereof, where the average specific surface area of the fluidised bed catalyst varies in the range of about 50 m²/g to about 800 m²/g, and the average particle diameter of the fluidised bed catalyst varies in the range of about 20 mcm to about 300 mcm.

EFFECT: high degree of conversion of oxalate, selectivity of ethylene glycol and high stability of the catalyst.

11 cl, 12 ex