Method of treating gaseous waste from an optical fiber preform fabrication unit
US6792774B2 · kind B2 · utility
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7References
7Claims
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Assignee
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Key dates
| Filing date | Mar 6, 2003 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Mar 6, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/0144
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of treating gaseous waste from an optical fiber preform fabrication unit containing halogenated compounds includes a step of forming a liquid effluent from the gaseous waste by condensing the gaseous waste. The gaseous waste is preferably condensed by cooling it. Plant for implementing the method includes a condenser and a container for collecting condensate. The condenser is preferably a refrigerating device. The plant can further include a soot box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.