Synthesis of Pure Zeolite X from Palygorskite Clay Using a Two-Stage Method

Abstract:

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A natural mineral, palygorskite clay, was used to synthesize pure zeolite X via a two-stage method. The synthetic parameters, such as calcination, crystallization time, and SiO2/Al2O3 molar ratio, were investigated. The results indicated that calcination enhanced the extraction of silica from palygorskite clay and was beneficial for the formation of zeolite X. Micro-sized pure zeolite X with the particle size of 1-4 μm was obtained in the gel with the SiO2/Al2O3 molar ratio range of 1.93 to 3 after hydrothermal treatment at 80 °C for 5 h. The synthetic zeolite X showed high specific surface area (487 m2/g) and low Si/Al ratio (1.17).

Info:

Periodical:

Advanced Materials Research (Volumes 236-238)

Edited by:

Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao

Pages:

767-770

DOI:

10.4028/www.scientific.net/AMR.236-238.767

Citation:

J. L. Jiang et al., "Synthesis of Pure Zeolite X from Palygorskite Clay Using a Two-Stage Method", Advanced Materials Research, Vols. 236-238, pp. 767-770, 2011

Online since:

May 2011

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Price:

$35.00

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