A method for providing a protective coating of an aqueous slurry of a refractory material in a lignosulphate binder solution for carbonaceous components of an electrolysis cell

摘要

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, which comprises preparing a liquid suspension of a refractory material dispersed in a lignosulfonate binder solution, and applying the suspension as a protective coating to the surface of carbonaceous cell components and allowed it to dry.