Abstract
The present invention relates to a production process of foam glass from a mixture of glass cullet or slag or fly ash with a foaming agent and an oxidizing agent and heating to below 1100 C under low oxygen atmosphere. The invention relates more particularly to a process wherein pure carbon or a compound which yields pure carbon as the foaming agent is oxidized by a sufficient amount of an efficient oxidizing agent essentially added to the glass-carbon powder mixture, where the oxidizing agent supplies oxygen in the relevant temperature range, to release CO/CO2 gas mixture in the softened glass at elevated temperature, to form a foamed material with CO2 gas filled cells.
Originalsprog | Engelsk |
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IPC | C03B 19/08 |
Patentnummer | EP2966044 A1 |
Journaliseringsdato | 13/01/2016 |
Prioritetsdato | 07/07/2014 |
Prioritetsnummer | DK 201470419 |
Status | Udgivet - 13 jan. 2016 |