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Title: Synthesis and characterization of SAPO-35 from non-aqueous systems with different silicon content
Authors: Venkatathri, N
Sivasanker, S
Keywords: Molecular sieves;Silicon;Hexamethyleneimine;XRD;SEM;Carbon and nitrogen analysis;MASNMR;ZSM-5 Catalyst;Butene
Issue Date: Mar-2004
Publisher: NISCAIR-CSIR, India
IPC Code: B01J29/85
Abstract: The molecular sieve SAPO-35 with different silicon content has been synthesized in a non-aqueous medium using haxamethyleimine template. It has been characterized by XRD, SEM, Carbon and Nitrogen analysis, MASNMR, FT-IR techniques and Methanol to olefin reaction. The study indicates that XRD, FT-IR and 29Si MASNMR properties did not change on increase in silicon incorporation. No silicon ilands were found on increase in silicon concentration. However, SEM photograph reveals that the particle size increased on increase in silicon content in the framework. The morphology also changes from bundles of platlets to cuboid, on more silicon incorporation. The catalytic activity of methanol to olefin conversion increases with silicon content and the selectivity is higher than ZSM-5 catalyst. Butene is formed as a main product.
Page(s): 260-265
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.11(2) [March 2004]

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