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A high mordenite product was obtained from a natural raw material, diatomite, either with or without the presence of diethanolamine. The synthesis process took 2 days, and was carried out under hydrothermal conditions, at autogenic pressure, and at a temperature of 180• C. The resulting crystals were identified as mordenite by X-ray diffraction and characterized by scanning electron microscopy, and differential thermal and gravimetric analyses.

Proben mit Mo‐lmprägnierungen von l bis I5 Gew.‐"/o MoO3 wurden zur Strukturcharakterisierung u.a. mittels XRD, TEM, IR sowie Messungen der spezifischen Oberflä‐ i che, des Wassergehalts und der Extraktion untersucht.