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Vitrification of lignite fly ash and metal slags for the production of glass and glass ceramics

✍ Scribed by A. Karamberi; A. Moutsatsou

Publisher
Elsevier
Year
2006
Tongue
English
Weight
117 KB
Volume
4
Category
Article
ISSN
1672-2515

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✦ Synopsis

This work focuses on the production of glass and glass-ceramics by using industrial wastes or by-products, e.g., two fly ashes from the combustion of lignite, a slag from the production of Fe-Ni and a slag from the making of steel. Vitrification took place at 1 350 o -1 450 o C and crystallization was achieved by heat treatment at 900, 950 and 1 000Β°C. The capability of the waste to be vitrified and subsequently devitrified was determined by XRD techniques. The crystalline phase depends greatly on the structure of the by-product and the heat treatment. The final products showed low leachability and good hardness.

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