Method for the preparation of crystalline and zeolitic...

Details Method for the preparation of crystalline and zeolitic... Method for the preparation of crystalline and zeolitic...

C - Chemistry, Metallurgy

01

B

252/15

C01B 39/36 (2006.01)

Patent

CA 2018690

ABSTRACT Disclosed herein is a method of preparing crystalline, zeolitic aluminosilicates with SiO2/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°C and 325°C for between about 1 and 20 minutes. The second stage is conducted in an open vessel at a temperature between about 50°C and 100°C for about 40 to 240 hours.

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