| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for producing a catalyst having high mechanical resistance and containing zeolite and oligomeric silica which does not require a step of separating a zeolite crystal phase from a suspension formed at the end of synthesis. SOLUTION: The process for the production of zeolitic catalysts in the form of microspheres, having high mechanical resistance and comprising zeolite and oligomeric silica, comprises subjecting to rapid drying of the suspension, to which tetra-alkylorthosilicate is optionally added, resulting from the synthesis of zeolite by hydrothermal treatment at autogenous pressure of the reagent mixture containing tetra-alkylammonium hydroxide as a template, and subjecting the product resulting from the drying to firing. COPYRIGHT: (C)2008,JPO&INPIT
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