| abstract |
FIELD: organic synthesis catalysts. SUBSTANCE: catalyst for gas-phase oxidation of ethylene into ethylene oxide is prepared by impregnation of carrier with aqueous solution of amine complex of silver salt containing, as promoter, alkali metal (potassium, rubidium, cesium) fluoride and, as copromoter, salt of metal selected from magnesium, calcium, barium, zinc, cadmium, aluminum, and lanthanum, after which impregnated carrier is treated with alkali metal fluoride in presence of a surfactant and then dried. EFFECT: increased activity and selectivity. 2 tbl, 15 ex |