This work is concerned with open-loop recycling of end of life Cathode Ray Tubes glass (an unsolved problem when considering that in Europe almost 90% of EOL electronic goods is disposed of in landfills), focusing on the development of glass-ceramics from panel or funnel glass with dolomite and alumina, and the evaluation of the tendency towards crystallisation with particular attention on composition and thermal treatment. Glasses were melted at a temperature of about 1500 degrees C and transformed into glass-ceramics by different thermal treatments (900 degrees C to similar to 1100 degrees C temperature range and 0.5 to similar to 8 h soaking time). By using the evaluation of thermal, mineralogical and microstructural data it has been pointed out that a good degree of crystallisation is reached at about 1000 degrees C and with a high proportion of waste glass (50-75%) if 40-45% of CaO and MgO bearer (dolomite) is introduced. In this way alkaline and alkaline-earth silicate and aluminosilicate mainly develop probably with a surface mechanism.

Glass-ceramics obtained by the recycling of end of life cathode ray tubes glasses / Andreola, Nora Maria; Barbieri, Luisa; Corradi, Anna; Lancellotti, Isabella; R., Falcone; S., Hreglich. - In: WASTE MANAGEMENT. - ISSN 0956-053X. - STAMPA. - 25(2)(2005), pp. 183-189.

Glass-ceramics obtained by the recycling of end of life cathode ray tubes glasses

ANDREOLA, Nora Maria;BARBIERI, Luisa;CORRADI, Anna;LANCELLOTTI, Isabella;
2005

Abstract

This work is concerned with open-loop recycling of end of life Cathode Ray Tubes glass (an unsolved problem when considering that in Europe almost 90% of EOL electronic goods is disposed of in landfills), focusing on the development of glass-ceramics from panel or funnel glass with dolomite and alumina, and the evaluation of the tendency towards crystallisation with particular attention on composition and thermal treatment. Glasses were melted at a temperature of about 1500 degrees C and transformed into glass-ceramics by different thermal treatments (900 degrees C to similar to 1100 degrees C temperature range and 0.5 to similar to 8 h soaking time). By using the evaluation of thermal, mineralogical and microstructural data it has been pointed out that a good degree of crystallisation is reached at about 1000 degrees C and with a high proportion of waste glass (50-75%) if 40-45% of CaO and MgO bearer (dolomite) is introduced. In this way alkaline and alkaline-earth silicate and aluminosilicate mainly develop probably with a surface mechanism.
25(2)
183
189
Glass-ceramics obtained by the recycling of end of life cathode ray tubes glasses / Andreola, Nora Maria; Barbieri, Luisa; Corradi, Anna; Lancellotti, Isabella; R., Falcone; S., Hreglich. - In: WASTE MANAGEMENT. - ISSN 0956-053X. - STAMPA. - 25(2)(2005), pp. 183-189.
Andreola, Nora Maria; Barbieri, Luisa; Corradi, Anna; Lancellotti, Isabella; R., Falcone; S., Hreglich
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/309862
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