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Type: Artigo de evento
Title: Synthesis Of Sapo-34 From The Lamellar Alpo-kanemite
Author: Albuquerque A.
Coluccia S.
Marchese L.
Pastore H.O.
Abstract: This work describes the preparation of SAPO-34 from a aluminophosphate lamelar analogue of kanemite structure, herein named ALPO-kan. The transformation occurs through a novel zeolitic silicoaluminophosphato named CAL-1 and was promoted by the addition of silica and hexamethyleneimine (HMl) as structure directing agent into a suspension of ALPO-kan. Calcination of CAL-1 affords H-SAPO-34-kan. The material was characterized by X-rays diffraction, scanning electronic microscopy, thermogravimetry, infrared spectroscopy in the hydroxyls region and Raman spectroscopy. The particles morphology is rather different from that of SAPO-34 prepared from a conventional gel synthesis and is composed of thin plates and pseudo-rombohedral particles that show remainings of a lamelar structure. This indicates that the transformation has occurred through a solid state reaction.
Citation: Studies In Surface Science And Catalysis. , v. 154 A, n. , p. 966 - 970, 2004.
Rights: fechado
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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