C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
C25C 3/20 (2006.01)
Patent
CA 2468737
The invention concerns a method and a device for detecting anode effects in an electrolytic cell for aluminium production by electrolytic fused salt process, which consists in measuring at least a first electric voltage signal U1 and a second electric voltage signal U2 at two different locations of said cell, and in determining the value of at least an anode effect anticipated indicator A based on the comparison of the two signals U1 and U2. The invention enables simple, reliable and early detection of anode effects.
L'invention a pour objets un procédé et un dispositif de détection des effets d'anode dans une cellule de production d'aluminium par électrolyse en sel fondu, dans lesquels on mesure au moins un premier signal de tension électrique U1 et un deuxième signal de tension électrique U2 à deux endroits distincts de ladite cellule, et dans lesquels on détermine la valeur d'au moins un indicateur anticipé d'effet d'anode A à partir d'une comparaison desdits signaux U1 et U2. L'invention permet une détection simple, fiable et précoce des effets d'anode.
Bonnardel Olivier
Delclos Christian
Aluminium Pechiney
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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