Method and installation for heat treating carbon bodies containing sodium
US7351390B2 · kind B2 · utility
4Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Jul 28, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Carbon bodies are heated in an oven under low pressure and while being swept with an inert gas, gaseous effluent containing elemental or compound sodium in sublimed form being continuously extracted from the oven via an effluent exhaust pipe. At least one sodium-neutralizing agent is injected into the effluent exhaust pipe immediately downstream from the outlet for exhausting gaseous effluent from the oven. The sodium-neutralizing agent is selected from carbon dioxide and steam, and it can be injected continuously into the flow of gaseous effluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.