Method of converting hall-heroult cells to inert anode cells...

Details Method of converting hall-heroult cells to inert anode cells... Method of converting hall-heroult cells to inert anode cells...

C - Chemistry, Metallurgy

25

C

C25C 3/06 (2006.01)

Patent

CA 2400943

A method is provided for retrofitting conventional aluminum smelting cells (1) with inert anode assemblies (12) which replace the consumable carbon anodes (2) of the cell (1). The inert anode assemblies (12) are pre-heated prior to introduction into the operating cell. Insulation (18) may be installed for reducing heat loss during operation of the retrofit cells.

L'invention concerne un procédé servant à convertir par rattrapage des cellules classiques de fonte d'aluminium (1) en ensembles anodiques inertes (12) remplaçant les anodes au carbone consommables (2) de la cellule (1). On effectue un réchauffement préalable de ces ensembles anodiques inertes (12) avant de les introduire dans la cellule opérationnelle. On peut monter une isolation (18) afin de limiter les pertes de chaleur pendant la mise en service des cellules rattrapées.

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