C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 31/04 (2006.01)
Patent
CA 2740860
The invention relates to processes for the production and thermal treatment of carbon material, in particular graphite powders, in an Acheson type oven, using a functional filler comprised essentially of graphitic material in particulate form allowing electrical current to flow through the charge. The particulate form of the filler allows greater flexibil-ity and can be used to control the degree of direct and indirect heating, re-sulting in more uniform products compared to the prior art. Such graphite materials are typically employed as an additive in polymers, batteries or other applications.
Linvention concerne des procédés de fabrication et de traitement thermique dun matériau carboné, notamment de poudres de graphite, dans un four de type Acheson, en utilisant une matière de remplissage fonctionnelle essentiellement composée dun matériau graphitique sous forme particulaire qui permet à un courant électrique de traverser la charge. La forme particulaire de la matière de remplissage permet une plus grande flexibilité et peut être utilisée pour contrôler le degré de chauffage direct et indirect, ce qui permet dobtenir des produits plus uniformes en comparaison de lart antérieur. De tels matériaux de graphite sont généralement employés en tant quadditif dans des polymères, des batteries ou dautres applications.
Cattaneo Davide
Rossetti Edo
Rota Fabio
Spahr Michael
Marks & Clerk
Timcal S.a.
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