METHOD FOR THE PREPARATION OF CRYSTALLINE AND ZEOLITIC ALUMINOSILICATES

Disclosed herein is a method of preparing crystalline, zeolitic aluminosilicates with Si02/Al2O3 ratios of 20 or more. The method provides a two-stage crystallization process which avoids the formation of secondary crystalline phases. The first stage is conducted at a temperature between 240 DEG C a...

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Bibliographische Detailangaben
Hauptverfasser:	ROLAND THOME, ARNO TISSLER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed herein is a method of preparing crystalline, zeolitic aluminosilicates with Si02/Al2O3 ratios of 20 or more. The method provides a two-stage crystallization process which avoids the formation of secondary crystalline phases. The first stage is conducted at a temperature between 240 DEG C and 325 DEG C for between about 1 and 20 minutes. The second stage is conducted in an open vessel at a temperature between about 50 DEG C and 100 DEG C for about 40 to 240 hours.