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One-Pot Synthesis of Fe-Beta Zeolite Disclosure Number: IPCOM000226604D
Publication Date: 2013-Apr-18
Document File: 2 page(s) / 250K

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The Prior Art Database

Related Documents

WO 2010/146156 A1: PATAPP


The present publication relates to the one-pot synthesis of Fe-Beta zeolite in the absence of an organotemplate as structure directing agent.

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One-Pot Synthesis of Fe-Beta Zeolite

Detailed procedure for the one-pot synthesis of Fe-Beta:

In a typical preparation, 0.069 g of NaAlO2 and 0.336 g of NaOH were dissolved in

6.8 mL of H2O, followed by addition of 0.72 g of fumed SiO2. Then 4 mL of FeCl3 solution (0.02 g of FeCl3•6H2O was dissolved into 4 mL of H2O) was added into the above mixture and stirring at room temperature for 1 h. After the formation of the homogeneous gel, 0.036 g of calcined Beta zeolite (synthesized in lab with TEAOH) was introduced into the gel.

Molar ratio in starting gels:
64 SiO2 / 24.5 Na2O / 1.6 Al2O3 / 0.4 FeCl3 / 3200 H2O / 5% seeds (mass based on total SiO2 amount).

After stirring for 5 min, the mixture was transferred to Teflon-lined stainless-steel autoclave for crystallization at 120 ºC for 6 day. The solid product was collected by filtration, washed with distilled water, and dried at 80 °C for 12 h.

The XRD-pattern obtained for the as-synthesized material is displayed in Figure 1 below. In Figures 2 and 3 below, images of the as-synthesized Fe-Beta as obtained from scanning electron microscopy (SEM) are respectively displayed.

Fig. 1

Intensity (a.u.)

5 10 15 20 25 30 35 40

2 Theta (degree)

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Fig. 2

Fig. 3

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