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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6969

Title: Silicoaluminophosphate molecular sieves SAPO-11, SAPO-31 and SAPO-41: Synthesis, characterization and alkylation of toluene with methanol
Authors: PRAKASH, AM
CHILUKURI, SVV
BAGWE, RP
ASHTEKAR, S
CHAKRABARTY, DK
Keywords: solid-state nmr
zeolite catalysts
thermal-stability
selectivity
acidity
xylene
si
al
Issue Date: 1996
Publisher: ELSEVIER SCIENCE BV
Citation: MICROPOROUS MATERIALS, 6(2), 89-97
Abstract: Medium pore molecular sieves SAPO-11, SAPO-31 and SAPO-41 have been synthesized using di-n-propylamine as the organic template. They have been characterized by various methods such as X-ray powder diffraction, solid state MAS NMR spectroscopy, thermal analysis, chemical analysis and temperature programmed desorption (TPD) of ammonia. Catalytic activities of these materials in the alkylation of toluene with methanol have been studied. While SAPO-11 and SAPO-31 showed moderate activity, very high catalytic activity was shown by SAPO-41. All the catalysts showed varying degrees of shape selectivity towards p-xylene. SAPO-41 gave a large amount of 1,2,4-trimethylbenzene in addition to the xylenes.
URI: http://dx.doi.org/10.1016/0927-6513(95)00091-7
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6969
http://hdl.handle.net/10054/6969
ISSN: 0927-6513
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