The transformation of lamellar AlPO-kanemite into chabazite-type CAL-1 3D molecular sieve: A structural study

M. Milanesio, G. Croce, A. Frache, L. Marchese, D. Viterbo, C. E. Da Silva, E. C. Oliveira, H. O. Pastore

Research output: Contribution to journalArticlepeer-review

Abstract

The preparation of a new molecular sieve, CAL-1, was recently reported. It presented a chabazite-type structure and was prepared starting from a lamellar aluminophosphate (ALPO-ntu), analogous to silica kanemite, and hexamethyleneimine as structure directing agent. Calcination of CAL-1 causes the transformation to H-SAPO-34, a molecular sieve for acid-catalyzed methanol-to-olefins reactions. An ex-situ high-resolution synchrotron radiation X-ray powder diffraction experiment allowed to monitor the relevant steps of the ALPO-ntu to CAL-1 transformation and its subsequent calcination to H-SAPO-34.

Original languageEnglish
Pages (from-to)311-318
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume158 A
DOIs
Publication statusPublished - 2005

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