FIELD: chemistry.
SUBSTANCE: invention relates to methods of producing carriers from aluminium oxide which have desirable properties when used as carriers for silver-based catalysts. The method of making a modified catalyst carrier for vapour-phase epoxidation of alkene involves a) saturation of a moulded carrier made from alpha aluminium oxide, which has been burnt and optionally subjected to other types of processing which provide for preforming, as part of the preforming process with at least one modifier, chosen from silicates of alkali metals and silicates of alkali-earth metals; b) drying said saturated carrier and c) burning said dried carrier at temperature not below 800°C. To obtain the catalyst, the method additionally involves stage d) where silver catalytic material is deposited on the said dried carrier. The invention also relates to epoxidation reactions, carried out in the presence of catalysts given above.
EFFECT: invention provides for highly stable activity and/or efficiency and acceptable initial efficiency and activity.
15 cl, 14 ex, 7 tbl
