Method for lining an aluminum electrolytic cell

Details Method for lining an aluminum electrolytic cell Method for lining an aluminum electrolytic cell

C - Chemistry, Metallurgy

25

C

204/209

C25C 3/08 (2006.01) C04B 35/532 (2006.01)

Patent

CA 1139712

ABSTRACT OF THE DISCLOSURE In lining parts to be stamped of an aluminum electroly- tic cell by filling the parts with a carbonaceous stamping material and stamping the filled stamping material, a mixture consisting essentially of a carbon aggregate and a binder and being capable of being stamped at a temperature above 100°C is prepared; a solvent for the binder is prepared seperately from the mixture, containing as a main component an aromatic hydrocarbon in an amount, when added to the mixture, incapable of effecting stamping of the stamping material at room temper- ature, but capable of being stamped at a temperature of 50°C to 100°C; the mixture and the solvent are mixed together, be- fore application, to prepare a carbonaceous stamping material; and the carbonaceous stamping material is applied to the part of the cell to be stamped at a temperature of 50°C to 100°C to effect the lining of the cell. The stamping environ- ment can thus be greatly improved by eliminating generation of pitch fumes and hot vapors and at the same time deteriora- tion in physical properties of the stamping material is sub- stantially prevented.

343829

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