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Synthesis and Characterization of High Aluminum Zeolite X from Technical Grade Materials

Seyed Kamal Masoudian  -  Research Institute of Petroleum Industry (RIPI), Catalysis and Nanotechnology Research Division, P.O. Box 14665137, Tehran,, Iran, Islamic Republic of
*Sepehr Sadighi  -  Research Institute of Petroleum Industry (RIPI), Catalysis and Nanotechnology Research Division, P.O. Box 14665137, Tehran,, Iran, Islamic Republic of
Ali Abbasi  -  Research Institute of Petroleum Industry (RIPI), Catalysis and Nanotechnology Research Division, P.O. Box 14665137, Tehran,, Iran, Islamic Republic of

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Abstract
Zeolites are widely used as ion exchangers, adsorbents, separation materials and catalyst due to their well-tailored and highly-reproducible structures; therefore, the synthesis of zeolite from low grade resources can be interested. In the present work, high aluminum zeolite X was prepared from mixing technical grade sodium aluminate and sodium silicate solutions at temperatures between 70°C and 100°C. The synthesized zeolite X was characterized by SEM and X-ray methods according to ASTM standard procedures. The results showed that aging of the synthesis medium at the room temperature considerably increased the selectivity of zeolite X formation. On the other hand, high temperature of reaction mixture during crystallization formed zeolite A in the product; therefore, it decreased the purity of zeolite X. In addition, it was found that increasing H2O/Na2O and decreasing Na2O/SiO2 molar ratios in the reaction mixture resulted product with higher purity. © 2013 BCREC UNDIP. All rights reserved

Received: 7th January 2013; Revised: 7th April 2013; Accepted: 19th April 2013

[How to Cite: Masoudian, S. K., Sadighi, S., Abbasi, A. (2013). Synthesis and Characterization of High Alu-minum Zeolite X from Technical Grade Materials. Bulletin of Chemical Reaction Engineering & Catalysis, 8 (1): 54-60. (doi:10.9767/bcrec.8.1.4321.54-60)]

[Permalink/DOI: http://dx.doi.org/10.9767/bcrec.8.1.4321.54-60]

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Keywords: High Aluminum; Zeolite X; Molecular sieve

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Language : EN
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Last update: 2021-09-20 01:07:20

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