B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 21/16 (2006.01) B01J 27/16 (2006.01) B01J 37/06 (2006.01) B01J 37/10 (2006.01) C07C 29/04 (2006.01) C07C 29/08 (2006.01)
Patent
CA 2336316
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 acidcatalyzed 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.
L'invention concerne un support de catalyseur désaluminé, un procédé pour produire ledit support de catalyseur avec une teneur réduite en aluminium à base de phyllosilicates courants, tels que la montmorillonite, ainsi qu'un procédé d'hydratation d'oléfines C2 ou C3, où l'on utilise le support de catalyseur à teneur réduite en aluminium. Pour la réaction d'hydratation à catalyse acide, le support est imprégné d'acide phosphorique. L'amélioration qui caractérise l'invention comparativement au procédé d'hydratation classique consiste dans le fait qu'il ne peut plus se produire de lixiviation d'aluminium du support en présence d'acide phosphorique. Les phénomènes de blocage par phosphate d'aluminium intervenant dans les appareils intercalés après la réaction ne sont plus à craindre.
Lohrengel Gregor
Maschmeyer Dietrich
Sakuth Michael
Stochniol Guido
Degussa-Huls Aktiengesellschaft
Marks & Clerk
Rwe-Dea Aktiengesellschaft Fur Mineraloel Und Chemie
Sasol Solvents Germany Gmbh
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