摘要 |
<p>Catalysts based on pentasil-type crystalline aluminosilicates are of primary crystallites with at least 20% united as agglomerates, these crystallites or agglomerates being bonded by finely divided aluminum oxide, such that the aluminum oxide binder is provided in the reaction as peptizable hydrate; sodium aluminate used as the aluminum and alkali sources; and the primary synthesis of crystalline aluminosilicate effected without acid addition. Catalysts based on pentasil-type crystalline aluminosilicates are formed of primary crystallites of average diameter 0.01-0.1 mu with at least 20% united in 5-500 microns agglomerates, the primary crystallites or agglomerates being bonded together by finely divided aluminum oxide. The catalysts are in H+ form and have BET surface area 300-600 m2/g, pore volume (mercury porosimetry) 0.3-0.8 cm3/g and finely divided aluminum oxide binder content 10-40% based on the total weight of aluminum silicate and binder, and are such that the aluminum oxide binder is provided in the reaction as peptizable aluminum oxide hydrate; sodium aluminate being used as the aluminum and alkali source; and the primary synthesis of crystalline aluminosilicate is effected without acid addition. An Independent claim is also provided for preparation of the catalyst.</p> |
申请人 |
SUED-CHEMIE AG |
发明人 |
BURGFELS, GOETZ, DR.;KOCHLOEFL, KARL, DR.;LADEBECK, JUERGEN, DR.;SCHNEIDER, MICHAEL, DR.;SCHMIDT, FRIEDRICH, DR.;WERNICKE, HANS-JUERGEN, DR.;SCHOENLINNER, JOSEF |