Dealuminated catalyst support, process for the preparation of the catalyst support and process for hydrating C2 or C3 olefins with water in the presence of a catalyst consisting of this catalyst support impregnated with acid

摘要

The invention relates to a dealuminized catalyst carrier, a method for producing a catalyst carrier having a lower aluminium content on the basis of naturally occurring sheet silicates, such as montmorillonite, and to a method for hydrating C2 or C3 olefins which uses the catalyst carrier having a lower aluminium content. For the acid-catalyzed hydration reaction the carrier is saturated with phosphoric acid. The improvement the invention provides for in comparison with known hydration methods is characterized in that the carrier is no longer subject to aluminium leaching in the presence of the phosphoric acid. As a result, there is no further risk of aluminium phosphate blockages occurring in apparatus positioned downstream of the reaction.