METHOD OF IMPROVING QUALITY OF ETHYLENE GLYCOL PRODUCTS Russian patent published in 2015 - IPC C07C29/90 C07C29/88 C07C31/20 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of improving the quality of ethylene glycol products, where ethylene glycol raw material and hydrogen are fed into a rotary packed bed reactor loaded with a solid oxide catalyst at temperature of about 20 to about 280°C, pressure of about 0.1 to about 4.0 MPa, volume flow rate of about 0.2 to about 100.0 h^-1 and hydrogen to ethylene glycol molar ratio of about 0.01 to 40:1, and ethylene glycol is obtained after the reaction, where said solid oxide catalyst is selected from at least one catalyst based on copper, nickel and palladium. The rotary speed of the packed bed reactor ranges from about 300 to about 5000 rpm.

EFFECT: improved quality of ethylene glycol products, specifically high selectivity of trace impurities, which affect transmission of UV radiation for ethylene glycol products, ie achieving a high UV radiation coefficient.

9 cl, 10 ex