CATALYST COMPOSITION INCLUDING SILVER, METHOD FOR OBTAINING SAME, AND APPLICATION OF CATALYST COMPOSITION IN ETHYLENE EPOXIDATION Russian patent published in 2008 - IPC B01J23/58 B01J23/68 B01J21/04 C07D301/10 

FIELD: chemistry.

SUBSTANCE: invention describes a catalyst composition including carrier with surface area of at least 500 m²/kg, and sediment on the carrier, made of metal silver; metal or nitrate- or nitrite-forming compound, and IA group metal or component containing IA group metal with atomic index of not less than 37 and additionally potassium, with the value of expression (Q_K/R)+Q_HIA being within the range of 1.5 to 30 mmol/kg, where Q_HIA and Q_K are quantity of IA group metal with atomic index over 37 and potassium contained in the catalytic composition, respectively, in mmol/kg, ratio of Q_HIA to Q_K is at least 1:1, value of Q_K is at least 0.01 mmol/kg, R is a non-dimensional value within the range of 1.5 to 5, mmol/kg units are given against the mass of catalyst composition. The invention describes a method for obtaining ethylene oxide by ethylene reaction with oxygen in the presence of the afore said catalyst composition, and a method for obtaining 1,2-ethanediol or ether of 1,2-ethanediol, which involves obtaining of ethylene oxide by the above method and its transformation into 1,2-ethanediol or ether of 1,2-ethanediol.

EFFECT: improved catalyst selectivity and service properties throughout its life cycle.

23 cl, 2 tbl, 10 ex