Method of increasing the effectiveness of a fining agent in a glass melt
US7584632B2 · kind B2 · utility
11Cited by
19References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2005 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Oct 4, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B5/225
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Feed materials are melted in a furnace to form a glass melt at a first temperature T1, the glass melt containing at least one fining agent. The glass melt is cooled to a second temperature T2 less than T1, and an oxygen-containing gas is bubbled through the cooled melt. The glass melt is then re-heated to a third temperature T3 equal to or greater than the first temperature T1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.