Method for providing a protective coating for carbonaceous components of an electrolysis cell
AssigneeAlcan International Limited
InventorsAmir A. Mirtchi, Jules Bergeron
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Abstract
A method of treating a carbonaceous cell component of an electrolyte cell for the production of aluminum, to impart protection against deterioration during operation of the cell. A liquid suspension of a refractory material dispersed in a lignosulfonate binder solution is prepared and applied as a protective coating to the surface of carbonaceous cell components and allowed to dry.
Claims34
A method of treating a carbonaceous cell component of an electrolytic cell for the production of aluminum, to improve the resistance of said component to deterioration during operation of the cell, which comprises preparing a liquid suspension of refractory material dispersed in a lignosulfonate binder solution, applying the suspension as a coating to the surface of said carbonaceous cell component and thereafter drying the coating.
A method of treating a carbon anode used in aluminum electrolysis cells, to improve the resistance of the anode to deterioration during operation of the cell, which comprises preparing a liquid suspension of a boron compound, aluminum fluoride and a lignosulfonate binder and applying the liquid suspension as a protective coating at least to the portion of the anode which is exposed to the atmosphere during cell operation, followed by drying the coating.
A method of treating a carbon cathode structures of an aluminum electrolysis cell, to improve the resistance of the cathode to deterioration during operation of the cell, which comprises preparing a liquid suspension of a refractory boride, a lignosulfonate binder and a phenolic resin binder and applying the liquid suspension as a protective coating to the cathode structures, followed by drying.
A composition for coating a carbonaceous cell component of an electrolytic cell for the production of aluminum, to improve the resistance of said component to deterioration during operation of the cell which comprising a liquid suspension of a refractory material dispersed in a lignosulfonate binder solution.
A composition for coating a carbon anode used in aluminum electrolysis cells, to improve the resistance of the anode to deterioration during operation of the cell, which comprises a liquid suspension of a boron compound, aluminum fluoride and a lignosulfonate binder.
A composition for coating carbon cathode structures of an aluminum electrolysis cell, to improve the resistance of the cathode to deterioration during operation of the cell, which comprises a liquid suspension of a refractory boride, a lignosulfonate binder and a phenolic resin.
Dependencies are inferred from the claim text.