METHOD AND INSTALLATION FOR HEAT TREATMENT OF CARBON PRODUCTS CONTAINING SODIUM

摘要

The invention concerns a method which consists in heating carbon products in an oven (10) under reduced pressure and under neutral gas sweeping, while continuously extracting from the oven gas effluent containing elementary or combined sodium in sublimated form, through an effluent discharge pipe (44). At least one sodium neutralizing product is injected into the effluent discharge pipe, immediately downstream of the effluent gas exit from the oven. The sodium neutralizing product is selected among carbon dioxide and water vapour, and can be continuously injected into the gas effluent stream.