C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
C25C 3/08 (2006.01) C01B 31/00 (2006.01)
Patent
CA 2651060
The invention relates to an electrolysis pot (1) for obtaining aluminium, comprising: a box (2); at least one cathode block (6) placed at least partly in the box (2); at least one anode (11) suspended above the pot and immersed in the upper portion of the electrolysis pot; and an insulator (3) at least partly covering the internal surface of the box (2) and located between the cathode block (6) and the box (2), the box and the elements that it contains defining a crucible (10) intended to receive an electrolysis bath in contact with the cathode block (6), characterized in that the insulator (3) is at least partly produced with the aid of carbon-based blocks (14) having a thermal conductivity of less than 1 W/m/K.
L'invention concerne une cuve d'électrolyse (1) d'obtention d'aluminium comprenant : un caisson (2), - au moins un bloc cathodique (6) disposé au moins en partie dans le caisson (2), - au moins une anode (11), suspendue au-dessus de la cuve et plongée dans la partie supérieure de la cuve d'électrolyse, - un isolant (3) recouvrant au moins en partie la surface interne du caisson (2) et situé entre le bloc cathodique (6) et le caisson (2), - le caisson et les éléments qu'il contient délimitant un creuset (10) destiné à accueillir un bain d'électrolyse en contact avec le bloc cathodique (6), caractérisée en ce que l'isolant (3) est réalisé au moins en partie à l'aide de blocs (14) à base de carbone ayant une conductivité thermique inférieure à 1 W/m/K.
Carbone Savoie
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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