Skip to Main Content
GEOREF RECORD

Transformation of zeolite structures during synthesis of ultramarine analogues

Stanislaw Kowalak and Aldona Jankowska
Transformation of zeolite structures during synthesis of ultramarine analogues (in Micro- and mesoporous mineral phases, S. Merlino (editor))
European Journal of Mineralogy (December 2005) 17 (6): 861-867

Abstract

XRD and IR analyses were applied to study the thermal synthesis of ultramarine by structural transformation of zeolites reacting with sulphur under alkaline conditions. Zeolites A, X and cancrinite are transformed to sodalite at high temperature (800 degrees C) under highly alkaline conditions when sodium is the only alkali cation present. The original structure of the parent zeolites can be retained (particularly at low temperature) when the alkalinity is low. Other structures such as nepheline hydrate II, carnegieite, kaliophilite are detected in the coloured products obtained either at intermediate alkalinity or through the introduction of cations other than sodium into the reaction mixture.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 17
Serial Issue: 6
Title: Transformation of zeolite structures during synthesis of ultramarine analogues
Title: Micro- and mesoporous mineral phases
Author(s): Kowalak, StanislawJankowska, Aldona
Author(s): Merlino, S.editor
Affiliation: A. Mickiewicz University, Department of Chemistry, Poznan, Poland
Pages: 861-867
Published: 200512
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
Meeting name: Micro- and mesoporous mineral phases
Meeting location: Rome, ITA, Italy
Meeting date: 20041206Dec. 6-7, 2004
References: 15
Accession Number: 2006-015609
Categories: Mineralogy of silicates
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200608
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal