C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
C25C 3/06 (2006.01) C04B 35/52 (2006.01) C04B 41/50 (2006.01) C04B 41/52 (2006.01) C04B 41/85 (2006.01) C04B 41/87 (2006.01) C04B 41/89 (2006.01) C25C 3/08 (2006.01) C25C 3/12 (2006.01)
Patent
CA 2137816
Carbon-containing components (1, 2, 5) of cells for the production of aluminium (8) by the electrolysis of alumina dissolved in a cryolite-based molten electrolyte (7) are protected from attack by liquid and/or gaseous components of the electrolyte (7) in the form of elements, ions or compounds, by a refractory boride coating (9, 10, 11) applied from a slurry composed of preformed particulate refractory boride in a colloidal carrier which is dried and heated to consolidate the coating.
L'invention concerne des composants (1, 2, 5) contenant du carbone pour cellules de production d'aluminium (8) par électrolyse d'alumine dissoute dans un électrolyte (7) fondu à base de cryolite qui sont protégés de l'attaque de composants gazeux liquides et/ou gazeux de l'électrolyte (7) se présentant sous forme d'éléments, d'ions ou de composés, au moyen d'un revêtement (9, 10, 11) de borure réfractaire obtenu à partir d'une boue se composant de borure réfractaire particulaire préformé dans un véhicule colloïdal qui est séché et chauffé afin de consolider ledit revêtement.
de Nora Vittorio
Sekhar Jainagesh A.
Gowling Lafleur Henderson Llp
Moltech Invent S.a.
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