Synthesis of Low-silica X-Zeolite via Crystallization Directing Agent Method

Abstract

Abstract: Low-silica X-zeolite(LSX) with a molar ratio 2.0 of SiO₂to Al₂O₃has been prepared by crystallization directing agent(CDA). The crystal structure was studied by XRD. The composition and crystal phases were detected by X-ray fluorescence spectrum and electron diffraction spectrum. LSX was synthesized quickly with a high crystallization by using the CDA method. The directing effect of CDA was consecutive in the synthesis. The effect of CDA is related to the composition of mixture, aging time and temperature, and it is related to the growth of the crystal faces.

Key words: Crystallization directing agent(CDA), Low-silica X-zeolite(LSX), Aging, Crystallization

CLC Number:

O643

TrendMD:

CUI Yi-Cheng, HAN Dong-Cheng, FU Le-Feng, ZHANG Ai-Min, XU Qin-Hua, DONG Jia-Lu . Synthesis of Low-silica X-Zeolite via Crystallization Directing Agent Method[J]. Chem. J. Chinese Universities, 2002, 23(12): 2226.

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Synthesis of Low-silica X-Zeolite via Crystallization Directing Agent Method

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