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Canadian Metallurgical Quarterly
The Canadian Journal of Metallurgy and Materials Science
Volume 36, 1997 - Issue 2
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Chemical and Extractive Metallurgy

Phase Study of the System Na2O−Al2O3−H2O

Pages 111-114 | Published online: 18 Jul 2013
 

Abstract

The Na2O-rich region of the phase diagram of Na2O-Al2O3-H2O system has been re-investigated. The triple points and solubility curves involving two sodium aluminate hydrates have been determined at 30°C. The Na2O-rich aluminate hydrate is identified to be 4Na2O·Al2O3·12 H2O by a tracer method. The phase diagram has been revised based on these results. © 1997 Canadian Institute of Mining and Metallurgy. Published by Elsevier Science Ltd

Résumé

On a ré-examiné la région riche en Na2O du diagramme de phase du système Na2O-Al2O3-H2O. On a déterminé, à 30°C, les points triples et les courbes de solubilité impliquant deux hydrates d'aluminate riche en Na2O comme étant le 4 Na2O−Al2O3−12 H2O, au moyen d'une méthode par traceur. On a révisé le diagramme de phase en se basant sur ces résultats.

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